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Ansari MA, Tripathi T, Venkidasamy B, Monziani A, Rajakumar G, Alomary MN, Alyahya SA, Onimus O, D'souza N, Barkat MA, Al-Suhaimi EA, Samynathan R, Thiruvengadam M. Multifunctional Nanocarriers for Alzheimer's Disease: Befriending the Barriers. Mol Neurobiol 2024; 61:3042-3089. [PMID: 37966683 DOI: 10.1007/s12035-023-03730-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 10/12/2023] [Indexed: 11/16/2023]
Abstract
Neurodegenerative diseases (NDDs) have been increasing in incidence in recent years and are now widespread worldwide. Neuronal death is defined as the progressive loss of neuronal structure or function which is closely associated with NDDs and represents the intrinsic features of such disorders. Amyotrophic lateral sclerosis, frontotemporal dementia, Alzheimer's, Parkinson's, and Huntington's diseases (AD, PD, and HD, respectively) are considered neurodegenerative diseases that affect a large number of people worldwide. Despite the testing of various drugs, there is currently no available therapy that can remedy or effectively slow the progression of these diseases. Nanomedicine has the potential to revolutionize drug delivery for the management of NDDs. The use of nanoparticles (NPs) has recently been developed to improve drug delivery efficiency and is currently subjected to extensive studies. Nanoengineered particles, known as nanodrugs, can cross the blood-brain barrier while also being less invasive compared to the most treatment strategies in use. Polymeric, magnetic, carbonic, and inorganic NPs are examples of NPs that have been developed to improve drug delivery efficiency. Primary research studies using NPs to cure AD are promising, but thorough research is needed to introduce these approaches to clinical use. In the present review, we discussed the role of metal-based NPs, polymeric nanogels, nanocarrier systems such as liposomes, solid lipid NPs, polymeric NPs, exosomes, quantum dots, dendrimers, polymersomes, carbon nanotubes, and nanofibers and surfactant-based systems for the therapy of neurodegenerative diseases. In addition, we highlighted nanoformulations such as N-butyl cyanoacrylate, poly(butyl cyanoacrylate), D-penicillamine, citrate-coated peptide, magnetic iron oxide, chitosan (CS), lipoprotein, ceria, silica, metallic nanoparticles, cholinesterase inhibitors, an acetylcholinesterase inhibitors, metal chelators, anti-amyloid, protein, and peptide-loaded NPs for the treatment of AD.
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Affiliation(s)
- Mohammad Azam Ansari
- Department of Epidemic Disease Research, Institute for Research & Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia
| | - Takshashila Tripathi
- Department of Neuroscience, Physiology & Pharmacology, University College London, London, UK
| | - Baskar Venkidasamy
- Department of Oral and Maxillofacial Surgery, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, Tamil Nadu, India
| | - Alan Monziani
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, USA
| | - Govindasamy Rajakumar
- Department of Orthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, Tamil Nadu, India
| | - Mohammad N Alomary
- Advanced Diagnostic and Therapeutic Institute, King Abdulaziz City for Science and Technology, 11442, Riyadh, Saudi Arabia
| | - Sami A Alyahya
- Wellness and Preventive Medicine Institute, King Abdulaziz City for Science and Technology, 11442, Riyadh, Saudi Arabia
| | - Oriane Onimus
- Faculty of Basic and Biomedical Sciences, University of Paris, Paris, France
| | - Naomi D'souza
- UCL Institute of Ophthalmology, 11-43 Bath Street, London, EC1V 9EL, UK
| | - Md Abul Barkat
- Department of Pharmaceutics, College of Pharmacy, University of Hafr Al-Batin, Hafr Al-Batin, Saudi Arabia
| | - Ebtesam A Al-Suhaimi
- Research Consultation Department, Vice Presidency for Scientific Research and Innovation, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia
| | - Ramkumar Samynathan
- Department of Oral and Maxillofacial Surgery, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, Tamil Nadu, India
| | - Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul, 05029, Republic of Korea.
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2
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Tan MJH, Patel SK, Chiu J, Zheng ZT, Odom TW. Liquid lasing from solutions of ligand-engineered semiconductor nanocrystals. J Chem Phys 2024; 160:154703. [PMID: 38624126 DOI: 10.1063/5.0201731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/28/2024] [Indexed: 04/17/2024] Open
Abstract
Semiconductor nanocrystals (NCs) can function as efficient gain materials with chemical versatility because of their surface ligands. Because the properties of NCs in solution are sensitive to ligand-environment interactions, local chemical changes can result in changes in the optical response. However, amplification of the optical response is technically challenging because of colloidal instability at NC concentrations needed for sufficient gain to overcome losses. This paper demonstrates liquid lasing from plasmonic lattice cavities integrated with ligand-engineered CdZnS/ZnS NCs dispersed in toluene and water. By taking advantage of calcium ion-induced aggregation of NCs in aqueous solutions, we show how lasing threshold can be used as a transduction signal for ion detection. Our work highlights how NC solutions and plasmonic lattices with open cavity architectures can serve as a biosensing platform for lab-on-chip devices.
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Affiliation(s)
- Max J H Tan
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Shreya K Patel
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Jessica Chiu
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | | | - Teri W Odom
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
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3
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Li X, Du J, Zhao G, Zhang B, Livache C, Ahn N, Jia Y, Li M, Chen Y, Zhu J, Guo J, Klimov VI, Wu K. Two-Color Amplified Spontaneous Emission from Auger-Suppressed Quantum Dots in Liquids. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308979. [PMID: 38009644 DOI: 10.1002/adma.202308979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/06/2023] [Indexed: 11/29/2023]
Abstract
Colloidal quantum-dot (QD) lasing is normally achieved in close-packed solid-state films, as a high QD volume fraction is required for stimulated emission to outcompete fast Auger decay of optical-gain-active multiexciton states. Here a new type of liquid optical-gain medium is demonstrated, in which compact compositionally-graded QDs (ccg-QDs) that feature strong suppression of Auger decay are liquefied using a small amount of solvent. Transient absorption measurements of ccg-QD liquid suspensions reveal broad-band optical gain spanning a wide spectral range from 560 (green) to 675 nm (red). The gain magnitude is sufficient to realize a two-color amplified spontaneous emission (ASE) at 637 and 594 nm due to the band-edge (1S) and the excited-state (1P) transition, respectively. Importantly, the ASE regime is achieved using quasicontinuous excitation with nanosecond pulses. Furthermore, the ASE is highly stable under prolonged excitation, which stands in contrast to traditional dyes that exhibit strong degradation under identical excitation conditions. These observations point toward a considerable potential of high-density ccg-QD suspensions as liquid, dye-like optical gain media that feature readily achievable spectral tunability and stable operation under intense photoexcitation.
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Affiliation(s)
- Xueyang Li
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Jun Du
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
- Nanotechnology and Advanced Spectroscopy Team, C-PCS, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Guohui Zhao
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Boyu Zhang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Clément Livache
- Nanotechnology and Advanced Spectroscopy Team, C-PCS, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Namyoung Ahn
- Nanotechnology and Advanced Spectroscopy Team, C-PCS, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Yuxi Jia
- University of Chinese Academy of Sciences, Beijing, 100049, China
- CAS Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Mingrun Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Ying Chen
- CAS Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Jingyi Zhu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Jingwei Guo
- University of Chinese Academy of Sciences, Beijing, 100049, China
- CAS Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
| | - Victor I Klimov
- Nanotechnology and Advanced Spectroscopy Team, C-PCS, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Kaifeng Wu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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4
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Du R, Li X, Li Y, Li Y, Hou T, Li Y, Qiao C, Zhang J. Cation Exchange Synthesis of Aliovalent Doped InP QDs and Their ZnSe xS 1-x Shell Coating for Enhanced Fluorescence Properties. J Phys Chem Lett 2023; 14:670-676. [PMID: 36637473 DOI: 10.1021/acs.jpclett.2c03515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
III-V quantum dots (QDs), in particular InP QDs, have emerged as high-performance and environmentally friendly candidates to replace cadmium based QDs. InP QDs exhibit properties of direct band gap structure, low toxicity, and high mobility, which make them suitable for high-performance optoelectronic applications. However, it is still challenging to precisely regulate the components and crystal structure of InP QDs, especially in the engineered stable aliovalent doping. In this work, we developed our original reverse cation exchange strategy to achieve Cu+ doped InP (InP:Cu) QDs at lower temperature. A ZnSexS1-x shell was then homogeneously grown on the InP:Cu QDs as the passivation shell. The as-prepared InP:Cu@ZnSexS1-x core-shell QDs exhibited better fluorescence properties with a photoluminescence quantum yield (PLQY) of 56.47%. Due to the existence of multiple luminous centers in the QDs, variable temperature-dependent fluorescence characteristics have been studied. The high photoluminescence characteristics in the near-infrared region indicate their potential applications in optoelectronic devices and biological fields.
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Affiliation(s)
- Ruizhi Du
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Xinyuan Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - You Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yuxi Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Tailei Hou
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yuemei Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Chen Qiao
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jiatao Zhang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
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5
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Chen W, Wang L, Liu R, Shen H, Du J, Fan F. Self-Assembled and Wavelength-Tunable Quantum Dot Whispering-Gallery-Mode Lasers for Backlight Displays. NANO LETTERS 2023; 23:437-443. [PMID: 36630612 DOI: 10.1021/acs.nanolett.2c03409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Thanks to the narrow line width and high brightness, colloidal quantum dot (CQD) lasers show promising applications in next-generation displays. However, CQD laser-based displays have yet to be demonstrated because of two challenges in integrating red, green, and blue (RGB) lasers: absorption from red CQDs deteriorates the optical gain of blue and green CQDs, and imbalanced white spectra lack blue lasing due to the high lasing threshold of blue CQDs. Herein, we introduce a facile surfactant-free self-assembly method to assemble RGB CQDs into high-quality whispering-gallery-mode (WGM) RGB lasers with close lasing thresholds among them. Moreover, these RGB lasers can lase nearly independently even when they are closely integrated, and they can construct an ultrawide color space whose color gamut is 105% of that of the BT.2020 standard. These combined strategies allow us to demonstrate the first full-color liquid crystal displays using CQD lasers as the backlight source.
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Affiliation(s)
- Weiguo Chen
- Chinese Academy of Sciences Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, Chinese Academy of Sciences Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Lei Wang
- Key Laboratory for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Ruixiang Liu
- Chinese Academy of Sciences Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, Chinese Academy of Sciences Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Huaibin Shen
- Key Laboratory for Special Functional Materials of Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Jiangfeng Du
- Chinese Academy of Sciences Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, Chinese Academy of Sciences Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Fengjia Fan
- Chinese Academy of Sciences Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, Chinese Academy of Sciences Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
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6
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Delikanli S, Isik F, Durmusoglu EG, Erdem O, Shabani F, Canimkurbey B, Kumar S, Dehghanpour Baruj H, Demir HV. Observation of optical gain from aqueous quantum well heterostructures in water. NANOSCALE 2022; 14:14895-14901. [PMID: 36106594 DOI: 10.1039/d2nr03659b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Although achieving optical gain using aqueous solutions of colloidal nanocrystals as a gain medium is exceptionally beneficial for bio-optoelectronic applications, the realization of optical gain in an aqueous medium using solution-processed nanocrystals has been extremely challenging because of the need for surface modification to make nanocrystals water dispersible while still maintaining their gain. Here, we present the achievement of optical gain in an aqueous medium using an advanced architecture of CdSe/CdS@CdxZn1-xS core/crown@gradient-alloyed shell colloidal quantum wells (CQWs) with an ultralow threshold of ∼3.4 μJ cm-2 and an ultralong gain lifetime of ∼2.6 ns. This demonstration of optical gain in an aqueous medium is a result of the carefully heterostructured CQWs having large absorption cross-section and gain cross-section in addition to inherently slow Auger recombination in these CQWs. Furthermore, we show low-threshold in-water amplified spontaneous emission (ASE) from these aqueous CQWs with a threshold of 120 μJ cm-2. In addition, we demonstrate a whispering gallery mode laser with a low threshold of ∼30 μJ cm-2 obtained by incorporating films of CQWs by exploiting layer-by-layer approach on a fiber. The observation of low-threshold optical gain with ultralong gain lifetime presents a significant step toward the realization of advanced optofluidic colloidal lasers and their continuous-wave pumping.
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Affiliation(s)
- Savas Delikanli
- Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Furkan Isik
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Emek G Durmusoglu
- Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Onur Erdem
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Farzan Shabani
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Betul Canimkurbey
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
- Serefeddin Health Services Vocational School, Central Research Laboratory, Amasya University, Amasya 05100, Turkey
| | - Satish Kumar
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Hamed Dehghanpour Baruj
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Hilmi Volkan Demir
- Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
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7
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Wang J, Wang L, Su X, Gao D, Yu H. CdTe quantum dot-based self-supporting films with enhanced stability for flexible light-emitting devices. SOFT MATTER 2022; 18:7324-7332. [PMID: 36111894 DOI: 10.1039/d2sm01108e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The enhancement of photoluminescence (PL) stability of colloidal quantum dots (CQDs) is of great significance in light-emitting devices. In this work, the PL stability of CdTe CQDs under time storage, strong light irradiation, acid and alkali corrosion and low temperature freezing is analyzed, and the PL quenching mechanism in a harsh environment is analyzed. Furthermore, the PL stability is extremely improved by core-shell coating, film deposition and polymer encapsulation. This solves the problem of rapid dropping of the PL intensity at the initial illumination stage and improves the corrosion resistance in an acidic environment and long-term storage stability of film devices. CQD polymer films have an interesting phenomenon of fluorescence enhancement under illumination due to the light-soaking effect. Biocompatible coating and encapsulation materials expand the application of CQD devices in the field of biological tissue imaging and sensing. Through the PL regulation of CQD solutions and the simple superposition of self-supporting films, a panchromatic light-emitting device with broadband adjustable chromaticity is realized. The solid-state stable whispering-gallery-mode (WGM) laser is realized by monodisperse SiO2 microspheres embedded in the film. This work is of great significance for the application of CQDs in flexible light-emitting devices.
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Affiliation(s)
- Jin Wang
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing, 100124, China.
| | - Li Wang
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing, 100124, China.
| | - Xueqiong Su
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing, 100124, China.
| | - Dongwen Gao
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing, 100124, China.
| | - Huimin Yu
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing, 100124, China.
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8
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Foroutan-Barenji S, Shabani F, Isik AT, Dikmen Z, Demir HV. All-colloidal parity-time-symmetric microfiber lasers balanced between the gain of colloidal quantum wells and the loss of colloidal metal nanoparticles. NANOSCALE 2022; 14:13755-13762. [PMID: 36098228 DOI: 10.1039/d2nr02146c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Lasers based on semiconductor colloidal quantum wells (CQWs) have attracted wide attention, thanks to their facile solution-processability, low threshold and wide range spectral tunability. Colloidal microlasers based on whispering-gallery-mode (WGM) resonators have already been widely demonstrated. However, due to their microscale size typically supporting multiple modes, they suffer from multimode competition and higher threshold. The ability to control the multiplicity of modes oscillating within colloidal laser resonators and achieving single-mode lasers is of fundamental importance in many photonic applications. Here we show that as a unique, simple and versatile architecture of all-colloidal lasers intrinsically enabled by balanced gain/loss segments, the lasing threshold reduction and spectral purification can be readily achieved in a system of a WGM-supported microfiber cavity by harnessing the notions of parity-time symmetry (PT). In particular, we demonstrate a proof-of-concept PT-symmetric microfiber laser employing CQWs as the colloidal gain medium along with a carefully tuned nanocomposite of Ag nanoparticles (Ag NPs) incorporated into a PMMA matrix altogether and conveniently coated around a coreless microfiber as a rigorously tailored colloidal loss medium to balance the gain. The realization of gain/loss segments in our PT-symmetric all-colloidal arrangement is independent of selected pumping, reducing the complexity of the system and making compact device applications feasible, where control over the pumping is not possible. We observed a reduction in the number of modes, resulting in a reduced threshold and enhanced output power of the PT-symmetric laser. The PT-symmetric CQW-WGM microcavity architecture offers new opportunities towards simple implementation of high-performance optical resonators for colloidal lasers.
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Affiliation(s)
- Sina Foroutan-Barenji
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey.
| | - Farzan Shabani
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey.
| | - Ahmet Tarik Isik
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey.
| | - Zeynep Dikmen
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey.
- Faculty of Engineering, Department of Biomedical Engineering, Osmangazi University, Eskisehir 26040, Turkey
| | - Hilmi Volkan Demir
- LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays, Centre of Optical fiber Technology, The Photonics Institute, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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9
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Mohammadimasoudi M, Geiregat P, Van Acker F, Beeckman J, Hens Z, Aubert T, Neyts K. Quantum dot lasing from a waterproof and stretchable polymer film. LIGHT, SCIENCE & APPLICATIONS 2022; 11:275. [PMID: 36104330 PMCID: PMC9475037 DOI: 10.1038/s41377-022-00960-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 08/03/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
Colloidal quantum dots (QDs) are excellent optical gain materials that combine high material gain, a strong absorption of pump light, stability under strong light exposure and a suitability for solution-based processing. The integration of QDs in laser cavities that fully exploit the potential of these emerging optical materials remains, however, a challenge. In this work, we report on a vertical cavity surface emitting laser, which consists of a thin film of QDs embedded between two layers of polymerized chiral liquid crystal. Forward directed, circularly polarized defect mode lasing under nanosecond-pulsed excitation is demonstrated within the photonic band gap of the chiral liquid crystal. Stable and long-term narrow-linewidth lasing of an exfoliated free-standing, flexible film under water is obtained at room temperature. Moreover, we show that the lasing wavelength of this flexible cavity shifts under influence of pressure, strain or temperature. As such, the combination of solution processable and stable inorganic QDs with high chiral liquid crystal reflectivity and effective polymer encapsulation leads to a flexible device with long operational lifetime, that can be immersed in different protic solvents to act as a sensor.
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Affiliation(s)
- Mohammad Mohammadimasoudi
- Nano-Bio-Photonics Lab, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
- Liquid Crystals and Photonics Group, ELIS Department, Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium.
| | - Pieter Geiregat
- Physics and Chemistry of Nanostructures, Department of Chemistry, Ghent University, Ghent, Belgium
- Center for Nano- and Biophotonics (NB-Photonics), Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
| | - Frederik Van Acker
- Liquid Crystals and Photonics Group, ELIS Department, Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
- Center for Nano- and Biophotonics (NB-Photonics), Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
| | - Jeroen Beeckman
- Liquid Crystals and Photonics Group, ELIS Department, Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
- Center for Nano- and Biophotonics (NB-Photonics), Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
| | - Zeger Hens
- Physics and Chemistry of Nanostructures, Department of Chemistry, Ghent University, Ghent, Belgium
- Center for Nano- and Biophotonics (NB-Photonics), Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
| | - Tangi Aubert
- Physics and Chemistry of Nanostructures, Department of Chemistry, Ghent University, Ghent, Belgium
- Center for Nano- and Biophotonics (NB-Photonics), Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
| | - Kristiaan Neyts
- Liquid Crystals and Photonics Group, ELIS Department, Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
- Center for Nano- and Biophotonics (NB-Photonics), Ghent University, Technologiepark-Zwijnaarde 126, 9052, Zwijnaarde, Belgium
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10
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Zhao Y, Feng J, Chen G, Wu JJ, Wang XD, Jiang L, Wu Y. Deterministic Assembly of Colloidal Quantum Dots for Multifunctional Integrated Photonics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110695. [PMID: 35411618 DOI: 10.1002/adma.202110695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Colloidal quantum dots (CQDs) are promising for photonic applications toward lasers, waveguides, and photodetectors. However, integration of high-quality photonic elements into multifunctional devices is still restricted by optical losses stemming from the accumulation of defects and disorder in the solution process. Herein, a platform with a directional Laplace pressure is created for eliminating undesired pinning of liquid fronts in the solution process and boosting ordered assembly of CQDs into designable micro-/nanostructures. The versatility and robustness of this method are demonstrated by deterministic patterning of CQDs with different components and photoluminescence spectra onto various substrates. On the basis of this platform, microring lasers with tunable emission modes, low-loss waveguides, and their coupled structures have been reached for direct on-chip generation and propagation of coherent light. A proof-of-concept demonstration of integrated circuits is also conducted by combining microcavity lasers with waveguides for encoding photonic outputs into information bits.
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Affiliation(s)
- Yuyan Zhao
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Jiangang Feng
- Department of Chemical and Biomolecular Sciences, National University of Singapore, Singapore, 117585, Singapore
| | - Gaosong Chen
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Jun-Jie Wu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Xue-Dong Wang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yuchen Wu
- Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
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11
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Gheshlaghi N, Foroutan-Barenji S, Erdem O, Altintas Y, Shabani F, Humayun MH, Demir HV. Self-Resonant Microlasers of Colloidal Quantum Wells Constructed by Direct Deep Patterning. NANO LETTERS 2021; 21:4598-4605. [PMID: 34028277 DOI: 10.1021/acs.nanolett.1c00464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Here, the first account of self-resonant fully colloidal μ-lasers made from colloidal quantum well (CQW) solution is reported. A deep patterning technique is developed to fabricate well-defined high aspect-ratio on-chip CQW resonators made of grating waveguides and in-plane reflectors. The fabricated waveguide-coupled laser, enabling tight optical confinement, assures in-plane lasing. CQWs of the patterned layers are closed-packed with sharp edges and residual-free lifted-off surfaces. Additionally, the method is successfully applied to various nanoparticles including colloidal quantum dots and metal nanoparticles. It is observed that the patterning process does not affect the nanocrystals (NCs) immobilized in the attained patterns and the different physical and chemical properties of the NCs remain pristine. Thanks to the deep patterning capability of the proposed method, patterns of NCs with subwavelength lateral feature sizes and micron-scale heights can possibly be fabricated in high aspect ratios.
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Affiliation(s)
- Negar Gheshlaghi
- Department of Electrical and Electronics Engineering Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Sina Foroutan-Barenji
- Department of Electrical and Electronics Engineering Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Onur Erdem
- Department of Electrical and Electronics Engineering Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Yemliha Altintas
- Department of Electrical and Electronics Engineering Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
- Department of Materials Science and Nanotechnology, Abdullah Gul University, Kayseri 38080, Turkey
| | - Farzan Shabani
- Department of Electrical and Electronics Engineering Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Muhammad Hamza Humayun
- Department of Electrical and Electronics Engineering Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Hilmi Volkan Demir
- Department of Electrical and Electronics Engineering Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
- LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays, Centre of Optical Fiber Technology, The Photonics Institute, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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12
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Chang H, Zhong Y, Dong H, Wang Z, Xie W, Pan A, Zhang L. Ultrastable low-cost colloidal quantum dot microlasers of operative temperature up to 450 K. LIGHT, SCIENCE & APPLICATIONS 2021; 10:60. [PMID: 33731676 PMCID: PMC7969957 DOI: 10.1038/s41377-021-00508-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 05/11/2023]
Abstract
Quantum dot microlasers, as multifunctional optical source components, are of great importance for full-color high-pixel display, miniaturized coherent lighting, and on-chip integrated photonic and electronic circuits. Since the first synthesis of colloidal quantum dots (CQD) in the 1990s, motivation to realize high-performance low-cost CQD micro-/nanolasers has been a driving force for more than three decades. However, the low packing density, inefficient coupling of CQDs with optical cavities, and the poor thermal stability of miniaturized complex systems make it challenging to achieve practical CQD micro-/nanolasers, especially to combine the continuous working ability at high temperatures and the low-cost potential with mass-produced synthesis technologies. Herein, we developed close-packed CQD-assembled microspheres and embedded them in a silica matrix through the rapid self-aggregation and solidification of CdSe/ZnS CQD. This technology addresses the core issues of photoluminescence (PL) quenching effect and low optical gain in traditional CQD laser research. High-efficiency low-threshold CQD microlasers are demonstrated together with long-playing (40 min) working stability even at 450 K under pulsed laser excitation, which is the highest operational temperature for CQD lasers. Moreover, single-mode CQD microlasers are obtained with tunable wavelengths across the entire visible spectral range. The chemosynthesis process supports the mass-produced potential of high-density integrated CQD microlasers, promoting CQD-based low-cost high-temperature microdevices.
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Affiliation(s)
- Hao Chang
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800, Shanghai, China
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200241, Shanghai, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 310024, Hangzhou, China
- State Key Laboratory of High Field Laser Physics, CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800, Shanghai, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Yichi Zhong
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800, Shanghai, China
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200241, Shanghai, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 310024, Hangzhou, China
| | - Hongxing Dong
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800, Shanghai, China.
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 310024, Hangzhou, China.
- State Key Laboratory of High Field Laser Physics, CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049, Beijing, China.
| | - Zhenyu Wang
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200241, Shanghai, China
| | - Wei Xie
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, 200241, Shanghai, China.
| | - Anlian Pan
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Materials Science and Engineering, Hunan University, 410082, Changsha, China
| | - Long Zhang
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800, Shanghai, China.
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 310024, Hangzhou, China.
- State Key Laboratory of High Field Laser Physics, CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049, Beijing, China.
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13
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Delikanli S, Erdem O, Isik F, Dehghanpour Baruj H, Shabani F, Yagci HB, Durmusoglu EG, Demir HV. Ultrahigh Green and Red Optical Gain Cross Sections from Solutions of Colloidal Quantum Well Heterostructures. J Phys Chem Lett 2021; 12:2177-2182. [PMID: 33630593 DOI: 10.1021/acs.jpclett.0c03836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We demonstrate amplified spontaneous emission (ASE) in solution with ultralow thresholds of 30 μJ/cm2 in red and of 44 μJ/cm2 in green from engineered colloidal quantum well (CQW) heterostructures. For this purpose, CdSe/CdS core/crown CQWs, designed to hit the green region, and CdSe/CdS@CdxZn1-xS core/crown@gradient-alloyed shell CQWs, further tuned to reach the red region by shell alloying, were employed to achieve high-performance ASE in the visible range. The net modal gain of these CQWs reaches 530 cm-1 for the green and 201 cm-1 for the red, 2-3 orders of magnitude larger than those of colloidal quantum dots (QDs) in solution. To explain the root cause for ultrahigh gain coefficient in solution, we show for the first time that the gain cross sections of these CQWs is ≥3.3 × 10-14 cm2 in the green and ≥1.3 × 10-14 cm2 in the red, which are two orders of magnitude larger compared to those of CQDs.
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Affiliation(s)
- Savas Delikanli
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
- Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Materials Sciences, Nanyang Technological University, Singapore 639798, Singapore
| | - Onur Erdem
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Furkan Isik
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Hamed Dehghanpour Baruj
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Farzan Shabani
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Huseyin Bilge Yagci
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Emek Goksu Durmusoglu
- Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Materials Sciences, Nanyang Technological University, Singapore 639798, Singapore
| | - Hilmi Volkan Demir
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
- Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Materials Sciences, Nanyang Technological University, Singapore 639798, Singapore
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14
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Nguyen DH, Sun JY, Lo CY, Liu JM, Tsai WS, Li MH, Yang SJ, Lin CC, Tzeng SD, Ma YR, Lin MY, Lai CC. Ultralow-Threshold Continuous-Wave Room-Temperature Crystal-Fiber/Nanoperovskite Hybrid Lasers for All-Optical Photonic Integration. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006819. [PMID: 33576143 DOI: 10.1002/adma.202006819] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/23/2021] [Indexed: 06/12/2023]
Abstract
Continuous-wave (CW) room-temperature (RT) laser operation with low energy consumption is an ultimate goal for electrically driven lasers. A monolithically integrated perovskite laser in a chip-level fiber scheme is ideal. However, because of the well-recognized air and thermal instabilities of perovskites, laser action in a perovskite has mostly been limited to either pulsed or cryogenic-temperature operations. Most CW laser operations at RT have had poor durability. Here, crystal fibers that have robust and high-heat-load nature are shown to be the key to enabling the first demonstration of ultralow-threshold CW RT laser action in a compact, monolithic, and inexpensive crystal fiber/nanoperovskite hybrid architecture that is directly pumped with a 405 nm diode laser. Purcell-enhanced light-matter coupling between the atomically smooth fiber microcavity and the perovskite nanocrystallites gain medium enables a high Q (≈1500) and a high β (0.31). This 762 nm laser outperforms previously reported structures with a record-low threshold of 132 nW and an optical-to-optical slope conversion efficiency of 2.93%, and it delivers a stable output for CW and RT operation. These results represent a significant advancement toward monolithic all-optical integration.
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Affiliation(s)
- Duc Huy Nguyen
- Department of Physics, National Dong Hwa University, Hualien, 974301, Taiwan
| | - Jia-Yuan Sun
- Department of Physics, National Dong Hwa University, Hualien, 974301, Taiwan
| | - Chia-Yao Lo
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung, 20224, Taiwan
| | - Jia-Ming Liu
- Department of Electrical and Computer Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Wan-Shao Tsai
- Department of Electric Engineering and Graduate Institute of Optoelectronic Engineering, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Ming-Hung Li
- Department of Physics, National Dong Hwa University, Hualien, 974301, Taiwan
| | - Sin-Jhang Yang
- Department of Physics, National Dong Hwa University, Hualien, 974301, Taiwan
| | - Cheng-Chia Lin
- Department of Opto-Electronic Engineering, National Dong Hwa University, Hualien, 974301, Taiwan
| | - Shien-Der Tzeng
- Department of Physics, National Dong Hwa University, Hualien, 974301, Taiwan
| | - Yuan-Ron Ma
- Department of Physics, National Dong Hwa University, Hualien, 974301, Taiwan
| | - Ming-Yi Lin
- Department of Dermatology, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, 100229, Taiwan
| | - Chien-Chih Lai
- Department of Physics, National Dong Hwa University, Hualien, 974301, Taiwan
- Department of Opto-Electronic Engineering, National Dong Hwa University, Hualien, 974301, Taiwan
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15
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Maskoun J, Gheshlaghi N, Isik F, Delikanli S, Erdem O, Erdem EY, Demir HV. Optical Microfluidic Waveguides and Solution Lasers of Colloidal Semiconductor Quantum Wells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007131. [PMID: 33491818 DOI: 10.1002/adma.202007131] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/10/2020] [Indexed: 06/12/2023]
Abstract
The realization of high-quality lasers in microfluidic devices is crucial for numerous applications, including biological and chemical sensors and flow cytometry, and the development of advanced lab-on-chip (LOC) devices. Herein, an ultralow-threshold microfluidic single-mode laser is proposed and demonstrated using an on-chip cavity. CdSe/CdS@Cdx Zn1- x S core/crown@gradient-alloyed shell colloidal semiconductor quantum wells (CQWs) dispersed in toluene are employed in the cavity created inside a poly(dimethylsiloxane) (PDMS) microfluidic device using SiO2 -protected Ag mirrors to achieve in-solution lasing. Lasing from such a microfluidic device having CQWs solution as a microfluidic gain medium is shown for the first time with a record-low optical gain threshold of 17.1 µJ cm- ² and lasing threshold of 68.4 µJ cm- ² among all solution-based lasing demonstrations. In addition, air-stable SiO2 protected Ag films are used and designed to form highly tunable and reflective mirrors required to attain a high-quality Fabry-Pérot cavity. These realized record-low thresholds emanate from the high-quality on-chip cavity together with the core/crown@gradient-alloyed shell CQWs having giant gain cross-section and slow Auger rates. This microfabricated CQW laser provides a compact and inexpensive coherent light source for microfluidics and integrated optics covering the visible spectral region.
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Affiliation(s)
- Joudi Maskoun
- UNAM Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
| | - Negar Gheshlaghi
- UNAM Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
| | - Furkan Isik
- UNAM Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
| | - Savas Delikanli
- UNAM Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 639798, Singapore
| | - Onur Erdem
- UNAM Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
- Department of Electrical and Electronics Engineering, Department of Physics, Bilkent University, Ankara, 06800, Turkey
| | - Emine Yegan Erdem
- UNAM Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
- Department of Mechanical Engineering, Bilkent University, Ankara, 06800, Turkey
| | - Hilmi Volkan Demir
- UNAM Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 639798, Singapore
- Department of Electrical and Electronics Engineering, Department of Physics, Bilkent University, Ankara, 06800, Turkey
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16
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Qiu Z, Wang S, Wang W, Wu S. Polymer Composites Entrapped Ce-Doped LiYF 4 Microcrystals for High-Sensitivity X-ray Scintillation and Imaging. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29835-29843. [PMID: 32484324 DOI: 10.1021/acsami.0c07765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Scintillators are widely used for radiation detection. The ability of converting ionizing radiation into visible photons is critical for application in X-ray security, computed tomography, and nuclear cameras. Conventional scintillators involve a high-temperature preparation and pose challenges for device integration and processability. Here, we report a facile hydrothermal synthesis of Ce-doped LiYF4 microcrystals (MCs) and their polymer composites for high-sensitivity X-ray detection and imaging application. These MC scintillators exhibit strong X-ray radioluminescence (RL) at ultraviolet wavelengths and show a high sensitivity to X-rays. Scintillating bulks based on these MCs display both strong RL and tunable emission across the visible spectrum. Further, these MC scintillators can be readily spun into a uniform film with a suitable MC content for X-ray imaging. Scintillating films can generate a strong X-ray-induced emission and long-term stability under X-ray illumination. Dose dependence of the RL intensity of our scintillating film indicates a high sensitivity to X-rays. Importantly, we exhibit an archetype application of scintillating films as X-ray radiography for a printed circuit board (PCB). Such an archetype can provide a decent spatial resolution as high as 0.54 mm. Our finding manifests MC composites of steady and efficient RL as a promising approach for X-ray radiography application.
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Affiliation(s)
- Zhihua Qiu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Shuaihua Wang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Wenqian Wang
- University of the Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Shaofan Wu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
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17
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Li J, Jing Q, Xiao S, Gao Y, Wang Y, Zhang W, Sun XW, Wang K, He T. Spectral Dynamics and Multiphoton Absorption Properties of All-Inorganic Perovskite Nanorods. J Phys Chem Lett 2020; 11:4817-4825. [PMID: 32508096 DOI: 10.1021/acs.jpclett.0c00967] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
All-inorganic perovskite (CsPbX3, X = Cl, Br, I) nanorods (NRs) not only retain their inherent advantages such as a high photoluminescence quantum yield and broad wavelength tunability but also exhibit superior photophysical properties including their extremely strong multiphoton absorption (MPA). However, the spectral dynamics and MPA properties of CsPbX3 NRs have not been fully investigated. Here, we report comprehensive comparison studies on the femtosecond spectral dynamical properties of CsPb(Br0.8Cl0.2)3, CsPbBr3, and CsPb(Br0.85I0.15)3 NRs, including their influences on their hot-carrier cooling, biexciton lifetime, and biexciton binding energy. Interestingly, although the three kinds of perovskite NRs have similar diameters and lengths, they differ significantly in their nonlinear optical properties, among which the CsPb(Br0.85I0.15)3 displayed the greatest MPA cross sections. Furthermore, the multiphoton-excited stimulated emission of CsPb(Br0.8Cl0.2)3 and CsPbBr3 NRs is demonstrated. This work indicates that CsPbX3 (X = Cl, Br, I) NRs are excellent candidates for exploring their applications in different optoelectronic devices.
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Affiliation(s)
- Junzi Li
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Qiang Jing
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R China
| | - Shuyu Xiao
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yang Gao
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Yue Wang
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R China
| | - Wenjing Zhang
- SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R China
| | - Xiao Wei Sun
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R China
| | - Kai Wang
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R China
| | - Tingchao He
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
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18
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Ultrawide Color Gamut Perovskite and CdSe/ZnS Quantum-Dots-Based White Light-Emitting Diode with High Luminous Efficiency. NANOMATERIALS 2019; 9:nano9091314. [PMID: 31540013 PMCID: PMC6781062 DOI: 10.3390/nano9091314] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/09/2019] [Accepted: 09/10/2019] [Indexed: 11/23/2022]
Abstract
We demonstrate excellent color quality of liquid-type white light-emitting diodes (WLEDs) using a combination of green light-emitting CsPbBr3 and red light-emitting CdSe/ZnS quantum dots (QDs). Previously, we reported red (CsPbBr1.2I1.8) and green (CsPbBr3) perovskite QDs (PQDs)-based WLEDs with high color gamut, which manifested fast anion exchange and stability issues. Herein, the replacement of red PQDs with CdSe/ZnS QDs has resolved the aforementioned problems effectively and improved both stability and efficiency. Further, the proposed liquid-type device possesses outstanding color gamut performance (132% of National Television System Committee and 99% of Rec. 2020). It also shows a high efficiency of 66 lm/W and an excellent long-term operation stability for over 1000 h.
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19
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Wang S, Yu J, Zhang M, Chen D, Li C, Chen R, Jia G, Rogach AL, Yang X. Stable, Strongly Emitting Cesium Lead Bromide Perovskite Nanorods with High Optical Gain Enabled by an Intermediate Monomer Reservoir Synthetic Strategy. NANO LETTERS 2019; 19:6315-6322. [PMID: 31441658 DOI: 10.1021/acs.nanolett.9b02436] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
One-dimensional (1D) semiconductor nanorods are important for numerous applications ranging from optics and electronics to biology, yet the direct synthesis of high-quality metal halide perovskite nanorods remains a challenge. Here, we develop an intermediate monomer reservoir synthetic strategy to realize the controllable growth of uniform and low-defect CsPbBr3 perovskite nanorods. Intermediates composed of CsPb2Br5 and Cs3In2Br9 are obtained through the substitution of Pb2+ with In3+ cations in the template of CsPbBr3 nanocubes and act as a precursor reservoir to gradually release monomers, ensuring both the slow growth rate and low defects of nanorods. We have used branched tris(diethylamino)phosphine as a ligand, which not only has unequal binding energies with different crystal faces to promote the orientation growth but also provides strong steric hindrance to shield the nanorods in solution. Because of minor amount of defects and an effective ligand passivation, in addition to significantly enhanced stability, the perovskite nanorods show a high photoluminescence quantum yield of up to 90% and exhibit a net mode gain of 980 cm-1, the latter being a record value among all the perovskite materials. An extremely low amplified spontaneous emission threshold of 7.5 μJ cm-2 is obtained under excitation by a nanosecond laser, which is comparable to that obtained using femtosecond lasers in other recent studies.
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Affiliation(s)
- Sheng Wang
- Key Laboratory of Advanced Display and System Applications of Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai 200072 , China
| | - Jiahao Yu
- Department of Electrical and Electronic Engineering , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China
| | - Minyi Zhang
- State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China
| | - Dechao Chen
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences , Curtin University , Perth , Western Australia 6845 , Australia
| | - Chunsen Li
- State Key Laboratory of Structural Chemistry , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , Fujian 350002 , China
| | - Rui Chen
- Department of Electrical and Electronic Engineering , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China
| | - Guohua Jia
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences , Curtin University , Perth , Western Australia 6845 , Australia
| | - Andrey L Rogach
- Department of Materials Science and Engineering and Centre for Functional Photonics (CFP) , City University of Hong Kong , 83 Tat Chee Avenue , Kowloon , Hong Kong S.A.R
| | - Xuyong Yang
- Key Laboratory of Advanced Display and System Applications of Ministry of Education , Shanghai University , 149 Yanchang Road , Shanghai 200072 , China
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20
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Liu B, Sharma M, Yu J, Shendre S, Hettiarachchi C, Sharma A, Yeltik A, Wang L, Sun H, Dang C, Demir HV. Light-Emitting Diodes with Cu-Doped Colloidal Quantum Wells: From Ultrapure Green, Tunable Dual-Emission to White Light. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901983. [PMID: 31379086 DOI: 10.1002/smll.201901983] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/28/2019] [Indexed: 06/10/2023]
Abstract
Copper-doped colloidal quantum wells (Cu-CQWs) are considered a new class of optoelectronic materials. To date, the electroluminescence (EL) property of Cu-CQWs has not been revealed. Additionally, it is desirable to achieve ultrapure green, tunable dual-emission and white light to satisfy the various requirement of display and lighting applications. Herein, light-emitting diodes (LEDs) based on colloidal Cu-CQWs are demonstrated. For the 0% Cu-doped concentration, the LED exhibits Commission Internationale de L'Eclairage 1931 coordinates of (0.103, 0.797) with a narrow EL full-wavelength at half-maximum of 12 nm. For the 0.5% Cu-doped concentration, a dual-emission LED is realized. Remarkably, the dual emission can be tuned by manipulating the device engineering. Furthermore, at a high doping concentration of 2.4%, a white LED based on CQWs is developed. With the management of doping concentrations, the color tuning (green, dual-emission to white) is shown. The findings not only show that LEDs with CQWs can exhibit polychromatic emission but also unlock a new direction to develop LEDs by exploiting 2D impurity-doped CQWs that can be further extended to the application of other impurities (e.g., Mn, Ag).
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Affiliation(s)
- Baiquan Liu
- Luminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 639798, Singapore
| | - Manoj Sharma
- Luminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 639798, Singapore
| | - Junhong Yu
- Luminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 639798, Singapore
| | - Sushant Shendre
- Luminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 639798, Singapore
| | - Chathuranga Hettiarachchi
- Centre for OptoElectronics and Biophotonics (COEB), School of Electrical and Electronic Engineering, The Photonics Institute (TPI), Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Ashma Sharma
- Luminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 639798, Singapore
| | - Aydan Yeltik
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
| | - Lin Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Handong Sun
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Cuong Dang
- Luminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 639798, Singapore
- Centre for OptoElectronics and Biophotonics (COEB), School of Electrical and Electronic Engineering, The Photonics Institute (TPI), Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Hilmi Volkan Demir
- Luminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 639798, Singapore
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, 06800, Turkey
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21
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Navarro-Arenas J, Suárez I, Martínez-Pastor JP, Ferrando A, Gualdrón-Reyes AF, Mora-Seró I, Gao SF, Wang YY, Wang P, Sun Z. Optical Amplification in Hollow-Core Negative-Curvature Fibers Doped with Perovskite CsPbBr 3 Nanocrystals. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E868. [PMID: 31181630 PMCID: PMC6631229 DOI: 10.3390/nano9060868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/02/2019] [Accepted: 06/03/2019] [Indexed: 11/16/2022]
Abstract
We report a hollow-core negative-curvature fiber (HC-NCF) optical signal amplifier fabricated by the filling of the air microchannels of the fiber with all-inorganic CsPbBr3 perovskite nanocrystals (PNCs). The optimum fabrication conditions were found to enhance the optical gain, up to +3 dB in the best device. Experimental results were approximately reproduced by a gain assisted mechanism based on the nonlinear optical properties of the PNCs, indicating that signal regeneration can be achieved under low pump powers, much below the threshold of stimulated emission. The results can pave the road of new functionalities of the HC-NCF with PNCs, such as optical amplification, nonlinear frequency conversion and gas sensors.
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Affiliation(s)
- Juan Navarro-Arenas
- Instituto de Ciencia de Materiales (ICMUV), Universidad de Valencia, C/Catedrático José Beltrán, 2, E-46980 Paterna, Spain.
| | - Isaac Suárez
- Instituto de Ciencia de Materiales (ICMUV), Universidad de Valencia, C/Catedrático José Beltrán, 2, E-46980 Paterna, Spain.
- Escuela de Ingenieros de Telecomunicación, Universidad Rey Juan Carlos, Camino del Molino s/n E 28942 Fuenlabrada, Spain.
| | - Juan P Martínez-Pastor
- Instituto de Ciencia de Materiales (ICMUV), Universidad de Valencia, C/Catedrático José Beltrán, 2, E-46980 Paterna, Spain.
| | - Albert Ferrando
- Departament d'Òptica i Optometria i Ciències de la Visió, Universitat de València, Dr Moliner, 50, 46100 Burjassot, Valencia, Spain.
| | - Andrés F Gualdrón-Reyes
- Institute of Advanced Materials (INAM), University Jaume I, Avenida de Vicent Sos Baynat, s/n, 12006 Castelló de la Plana, Castellón, Spain.
- Biofuels Lab-IBEAR, Faculty of Basic Sciences, University of Pamplona, 543050 Pamplona, Colombia.
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM), University Jaume I, Avenida de Vicent Sos Baynat, s/n, 12006 Castelló de la Plana, Castellón, Spain.
| | - Shou-Fei Gao
- Beijing Engineering Research Centre of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, 100124 Beijing, China.
| | - Ying-Ying Wang
- Beijing Engineering Research Centre of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, 100124 Beijing, China.
| | - Pu Wang
- Beijing Engineering Research Centre of Laser Technology, Institute of Laser Engineering, Beijing University of Technology, 100124 Beijing, China.
| | - Zhipei Sun
- Department of Electronics and Nanoengineering, Aalto University, Tietotie 3, 02150 Espoo, Finland.
- QTF Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076 Aalto, Finland.
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22
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Yuan F, Yuan T, Sui L, Wang Z, Xi Z, Li Y, Li X, Fan L, Tan Z, Chen A, Jin M, Yang S. Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs. Nat Commun 2018; 9:2249. [PMID: 29884873 PMCID: PMC5993800 DOI: 10.1038/s41467-018-04635-5] [Citation(s) in RCA: 348] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 05/09/2018] [Indexed: 02/04/2023] Open
Abstract
Carbon quantum dots (CQDs) have emerged as promising materials for optoelectronic applications on account of carbon's intrinsic merits of high stability, low cost, and environment-friendliness. However, the CQDs usually give broad emission with full width at half maximum exceeding 80 nm, which fundamentally limit their display applications. Here we demonstrate multicolored narrow bandwidth emission (full width at half maximum of 30 nm) from triangular CQDs with a quantum yield up to 54-72%. Detailed structural and optical characterizations together with theoretical calculations reveal that the molecular purity and crystalline perfection of the triangular CQDs are key to the high color-purity. Moreover, multicolored light-emitting diodes based on these CQDs display good stability, high color-purity, and high-performance with maximum luminance of 1882-4762 cd m-2 and current efficiency of 1.22-5.11 cd A-1. This work will set the stage for developing next-generation high-performance CQDs-based light-emitting diodes.
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Affiliation(s)
- Fanglong Yuan
- College of Chemistry, Beijing Normal University, 100875, Beijing, China
| | - Ting Yuan
- College of Chemistry, Beijing Normal University, 100875, Beijing, China
| | - Laizhi Sui
- Institute of Atomic and Molecular Physics, Jilin University, 130012, Changchun, China
- State key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, 116023, Dalian, China
| | - Zhibin Wang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, 102206, Beijing, China
| | - Zifan Xi
- College of Chemistry, Beijing Normal University, 100875, Beijing, China
| | - Yunchao Li
- College of Chemistry, Beijing Normal University, 100875, Beijing, China
| | - Xiaohong Li
- College of Chemistry, Beijing Normal University, 100875, Beijing, China
| | - Louzhen Fan
- College of Chemistry, Beijing Normal University, 100875, Beijing, China.
| | - Zhan'ao Tan
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, 102206, Beijing, China.
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, China.
| | - Anmin Chen
- Institute of Atomic and Molecular Physics, Jilin University, 130012, Changchun, China
| | - Mingxing Jin
- Institute of Atomic and Molecular Physics, Jilin University, 130012, Changchun, China
| | - Shihe Yang
- Guangdong Key Lab of Nano-Micro Material Research, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, 518055, Shenzhen, China.
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23
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Krieg F, Ochsenbein ST, Yakunin S, ten Brinck S, Aellen P, Süess A, Clerc B, Guggisberg D, Nazarenko O, Shynkarenko Y, Kumar S, Shih CJ, Infante I, Kovalenko MV. Colloidal CsPbX 3 (X = Cl, Br, I) Nanocrystals 2.0: Zwitterionic Capping Ligands for Improved Durability and Stability. ACS ENERGY LETTERS 2018; 3:641-646. [PMID: 29552638 PMCID: PMC5848145 DOI: 10.1021/acsenergylett.8b00035] [Citation(s) in RCA: 302] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/09/2018] [Indexed: 04/14/2023]
Abstract
Colloidal lead halide perovskite nanocrystals (NCs) have recently emerged as versatile photonic sources. Their processing and optoelectronic applications are hampered by the loss of colloidal stability and structural integrity due to the facile desorption of surface capping molecules during isolation and purification. To address this issue, herein, we propose a new ligand capping strategy utilizing common and inexpensive long-chain zwitterionic molecules such as 3-(N,N-dimethyloctadecylammonio)propanesulfonate, resulting in much improved chemical durability. In particular, this class of ligands allows for the isolation of clean NCs with high photoluminescence quantum yields (PL QYs) of above 90% after four rounds of precipitation/redispersion along with much higher overall reaction yields of uniform and colloidal dispersible NCs. Densely packed films of these NCs exhibit high PL QY values and effective charge transport. Consequently, they exhibit photoconductivity and low thresholds for amplified spontaneous emission of 2 μJ cm-2 under femtosecond optical excitation and are suited for efficient light-emitting diodes.
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Affiliation(s)
- Franziska Krieg
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Stefan T. Ochsenbein
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Stephanie ten Brinck
- Department
of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Philipp Aellen
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Adrian Süess
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Baptiste Clerc
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Dominic Guggisberg
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Olga Nazarenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Yevhen Shynkarenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Sudhir Kumar
- Institute
of Chemical and Bioengineering, Department of Chemistry and Applied
Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Chih-Jen Shih
- Institute
of Chemical and Bioengineering, Department of Chemistry and Applied
Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Ivan Infante
- Department
of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- E-mail:
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24
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Krieg F, Ochsenbein ST, Yakunin S, Ten Brinck S, Aellen P, Süess A, Clerc B, Guggisberg D, Nazarenko O, Shynkarenko Y, Kumar S, Shih CJ, Infante I, Kovalenko MV. Colloidal CsPbX 3 (X = Cl, Br, I) Nanocrystals 2.0: Zwitterionic Capping Ligands for Improved Durability and Stability. ACS ENERGY LETTERS 2018; 3:641-646. [PMID: 29552638 DOI: 10.1021/acsenergylett.8b00035/suppl_file/nz8b00035_liveslides.mp4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/09/2018] [Indexed: 05/20/2023]
Abstract
Colloidal lead halide perovskite nanocrystals (NCs) have recently emerged as versatile photonic sources. Their processing and optoelectronic applications are hampered by the loss of colloidal stability and structural integrity due to the facile desorption of surface capping molecules during isolation and purification. To address this issue, herein, we propose a new ligand capping strategy utilizing common and inexpensive long-chain zwitterionic molecules such as 3-(N,N-dimethyloctadecylammonio)propanesulfonate, resulting in much improved chemical durability. In particular, this class of ligands allows for the isolation of clean NCs with high photoluminescence quantum yields (PL QYs) of above 90% after four rounds of precipitation/redispersion along with much higher overall reaction yields of uniform and colloidal dispersible NCs. Densely packed films of these NCs exhibit high PL QY values and effective charge transport. Consequently, they exhibit photoconductivity and low thresholds for amplified spontaneous emission of 2 μJ cm-2 under femtosecond optical excitation and are suited for efficient light-emitting diodes.
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Affiliation(s)
- Franziska Krieg
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Stefan T Ochsenbein
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Stephanie Ten Brinck
- Department of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Philipp Aellen
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Adrian Süess
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Baptiste Clerc
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Dominic Guggisberg
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Olga Nazarenko
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Yevhen Shynkarenko
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Sudhir Kumar
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Chih-Jen Shih
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
| | - Ivan Infante
- Department of Theoretical Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, de Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Maksym V Kovalenko
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
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25
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Gong C, Gong Y, Chen Q, Rao YJ, Peng GD, Fan X. Reproducible fiber optofluidic laser for disposable and array applications. LAB ON A CHIP 2017; 17:3431-3436. [PMID: 28875219 DOI: 10.1039/c7lc00708f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Disposable sensors are widely used in biomedical detection due to their inherent safety, ease of use and low cost. An optofluidic laser is a sensitive bioassay platform; however, demonstrating its fabrication cheaply and reproducibly enough for disposable use has been challenging. Here, we report a low-cost, reproducible fiber optofluidic laser (FOFL) using a microstructured optical fiber (MOF). The MOF not only supports the whispering gallery modes for lasing but also serves as a microfluidic channel for sampling the liquid gain medium via capillary force. Because of the precise control of its geometry (δ < 0.4%) during the fiber-drawing process, good reproducibility in laser intensity (δ = 6.5%) was demonstrated by changing 10 sections of the MOF. The strong coupling between the in-fiber resonator and gain medium enables a low threshold of 3.2 μJ mm-2. The angular dependence of the laser emission was observed experimentally and analyzed with numerical simulations. An array of the FOFLs was also demonstrated. This technology has great potential for low-cost bioassay applications.
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Affiliation(s)
- Chaoyang Gong
- Key Laboratory of Optical Fiber Sensing and Communications (Ministry of Education of China), University of Electronic Science and Technology of China, No. 2006, Xiyuan Ave., Chengdu, 611731 China.
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26
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Aamir M, Adhikari T, Sher M, Khan MD, Akhtar J, Nunzi JM. Cesium Lead Halide Perovskite Nanostructures: Tunable Morphology and Halide Composition. CHEM REC 2017; 18:230-238. [DOI: 10.1002/tcr.201700034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Muhammad Aamir
- Department of Chemistry; Queen's University; Kingston ON K7L 3N6 Canada
- Department of Chemistry; Allama Iqbal Open University; Islamabad Pakistan
| | - Tham Adhikari
- Department of Chemistry; Queen's University; Kingston ON K7L 3N6 Canada
| | - Muhammad Sher
- Department of Chemistry; Allama Iqbal Open University; Islamabad Pakistan
| | - Malik Dilshad Khan
- Department of Chemistry; University of Zululand; Private Bag X1001 Kwadlangezwa 3886
| | - Javeed Akhtar
- Department of chemistry Polymers & Materials synthesis (PMS) Laboratory; Mirpur university of science & Technology (MUST); Allama Iqbal Road, Mirpur Azad Jammu & Kashmir 10250 Pakistan
| | - Jean-Michel Nunzi
- Department of Chemistry; Queen's University; Kingston ON K7L 3N6 Canada
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27
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Huang X, Fang Z, Peng Z, Ma Z, Guo H, Qiu J, Dong G. Formation, element-migration and broadband luminescence in quantum dot-doped glass fibers. OPTICS EXPRESS 2017; 25:19691-19700. [PMID: 29041657 DOI: 10.1364/oe.25.019691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 07/31/2017] [Indexed: 06/07/2023]
Abstract
All solid-state PbS quantum dot (QD)-doped glass precursor fibers avoiding crystallization during fiber-drawing process are successfully fabricated by melt-in-tube technique. By subsequent heat treatment schedule, controllable crystallization of PbS QDs can be obtained in the glass precursor fibers, contributing to broad near-infrared emissions from PbS QD-doped glass fibers. Nevertheless, we find that element-migration and volatilization of sulfur simultaneously happen during the whole fiber-drawing process, because of the huge difference between the melting temperature of core glass and the fiber-drawing temperature. Element-migration pathways along the fiber length were revealed. Such PbS QD-doped glass fiber with broadband emissions will be a potential application as gain medium of broadband fiber amplifiers and fiber lasers.
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28
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CdSe@ZnS/ZnS quantum dots loaded in polymeric micelles as a pH-triggerable targeting fluorescence imaging probe for detecting cerebral ischemic area. Colloids Surf B Biointerfaces 2017; 155:497-506. [DOI: 10.1016/j.colsurfb.2017.04.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/10/2017] [Accepted: 04/26/2017] [Indexed: 12/20/2022]
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29
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Liu C, Li Z, Hajagos TJ, Kishpaugh D, Chen DY, Pei Q. Transparent Ultra-High-Loading Quantum Dot/Polymer Nanocomposite Monolith for Gamma Scintillation. ACS NANO 2017; 11:6422-6430. [PMID: 28551988 DOI: 10.1021/acsnano.7b02923] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Spectroscopic gamma-photon detection has widespread applications for research, defense, and medical purposes. However, current commercial detectors are either prohibitively expensive for wide deployment or incapable of producing the characteristic gamma photopeak. Here we report the synthesis of transparent, ultra-high-loading (up to 60 wt %) CdxZn1-xS/ZnS core/shell quantum dot/polymer nanocomposite monoliths for gamma scintillation by in situ copolymerization of the partially methacrylate-functionalized quantum dots in a monomer solution. The efficient Förster resonance energy transfer of the high-atomic-number quantum dots to lower-band-gap organic dyes enables the extraction of quantum-dot-borne excitons for photon production, resolving the problem of severe light yield deterioration found in previous nanoparticle-loaded scintillators. As a result, the nanocomposite scintillator exhibited simultaneous improvements in both light yield (visible photons produced per MeV of gamma-photon energy) and gamma attenuation. With these enhancements, a 662 keV Cs-137 gamma photopeak with 9.8% resolution has been detected using a 60 wt % quantum-dot nanocomposite scintillator, demonstrating the potential of such a nanocomposite system in the development of high-performance low-cost spectroscopic gamma detectors.
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Affiliation(s)
- Chao Liu
- Department of Materials Science and Engineering, Henry Samueli School of Engineering and Applied Science, University of California , Los Angeles, California 90095, United States
| | - Zhou Li
- Department of Materials Science and Engineering, Henry Samueli School of Engineering and Applied Science, University of California , Los Angeles, California 90095, United States
| | - Tibor Jacob Hajagos
- Department of Materials Science and Engineering, Henry Samueli School of Engineering and Applied Science, University of California , Los Angeles, California 90095, United States
| | - David Kishpaugh
- Department of Materials Science and Engineering, Henry Samueli School of Engineering and Applied Science, University of California , Los Angeles, California 90095, United States
| | - Dustin Yuan Chen
- Department of Materials Science and Engineering, Henry Samueli School of Engineering and Applied Science, University of California , Los Angeles, California 90095, United States
| | - Qibing Pei
- Department of Materials Science and Engineering, Henry Samueli School of Engineering and Applied Science, University of California , Los Angeles, California 90095, United States
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30
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Chen D, Chen X, Wan Z, Fang G. Full-Spectral Fine-Tuning Visible Emissions from Cation Hybrid Cs 1-mFA mPbX 3 (X = Cl, Br, and I, 0 ≤ m ≤ 1) Quantum Dots. ACS APPLIED MATERIALS & INTERFACES 2017; 9:20671-20678. [PMID: 28569064 DOI: 10.1021/acsami.7b05429] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Full-color visible emissions are particularly crucial for applications in displays and lightings. In this work, we developed a facile room-temperature ligand-assisted supersaturated recrystallization synthesis of monodisperse, cubic structure Cs1-mFAmPbX3 (X = Cl, Br, and I or their mixtures Cl/Br and Br/I, 0 ≤ m ≤ 1) hybrid perovskite quantum dots (QDs). Impressively, cation substitution of Cs+ by FA+ was beneficial in finely tuning the band gap and in exciton recombination kinetics, improving the structural stability, and raising the absolute quantum yields up to 85%. With further assistance of anion replacement, full-spectral visible emissions in the wavelength range of 450-750 nm; narrow full width at half-maxima, and a wide color gamut, encompassing 130% of National Television System Committee television color standard, were achieved. Finally, Cs1-mFAmPbX3-polymer films retaining multicolor luminescence are prepared and a prototype white light-emitting diode device was constructed using green Cs0.1FA0.9PbBr3 and red Cs0.1FA0.9Br1.5I1.5 QDs as color converters, certainly suggesting their potential applications in the optoelectronics field.
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Affiliation(s)
- Daqin Chen
- College of Materials and Environmental Engineering, Hangzhou Dianzi University , Hangzhou 310018, China
| | - Xiao Chen
- College of Materials and Environmental Engineering, Hangzhou Dianzi University , Hangzhou 310018, China
| | - Zhongyi Wan
- College of Materials and Environmental Engineering, Hangzhou Dianzi University , Hangzhou 310018, China
| | - Gaoliang Fang
- College of Materials and Environmental Engineering, Hangzhou Dianzi University , Hangzhou 310018, China
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31
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Zhang L, Liao C, Lv B, Wang X, Xiao M, Xu R, Yuan Y, Lu C, Cui Y, Zhang J. Single-Mode Lasing from "Giant" CdSe/CdS Core-Shell Quantum Dots in Distributed Feedback Structures. ACS APPLIED MATERIALS & INTERFACES 2017; 9:13293-13303. [PMID: 28357855 DOI: 10.1021/acsami.7b01669] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
"Giant" semiconductor quantum dots (GQDs) have tremendous potential for applications in laser devices. Here, CdSe/CdS core-shell GQDs (11 monolayers) have been synthesized as lasing gain material. The photoluminescence decay of the GQD ensemble is single-exponential, and the two-photon absorption cross-section is above 105 GM. This article presents a versatile method for fabrication of CdSe/CdS GQD distributed feedback (DFB) lasers by laser interference ablation. A high-quality surface-relief grating structure can be readily created on the GQD thin films, and the relationship between laser beam intensity and surface modulation depth is studied. With appropriate periods, single-mode lasing emission has been detected from these devices under excitation wavelengths of 400 and 800 nm. The laser thresholds are as low as 0.028 and 1.03 mJ cm-2, with the lasing Q-factors of 709 and 586, respectively. Lasing operation is realized from the direct laser interference-ablated QD DFB structures for the first time.
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Affiliation(s)
- Lei Zhang
- Advanced Photonics Center, School of Electronic Science & Engineering, Southeast University , Nanjing 210096, China
| | - Chen Liao
- Advanced Photonics Center, School of Electronic Science & Engineering, Southeast University , Nanjing 210096, China
| | - Bihu Lv
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Xiaoyong Wang
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Min Xiao
- National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University , Nanjing 210093, China
| | - Ruilin Xu
- Advanced Photonics Center, School of Electronic Science & Engineering, Southeast University , Nanjing 210096, China
| | - Yufen Yuan
- Advanced Photonics Center, School of Electronic Science & Engineering, Southeast University , Nanjing 210096, China
| | - Changgui Lu
- Advanced Photonics Center, School of Electronic Science & Engineering, Southeast University , Nanjing 210096, China
| | - Yiping Cui
- Advanced Photonics Center, School of Electronic Science & Engineering, Southeast University , Nanjing 210096, China
| | - Jiayu Zhang
- Advanced Photonics Center, School of Electronic Science & Engineering, Southeast University , Nanjing 210096, China
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32
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Wang Y, Ta VD, Leck KS, Tan BHI, Wang Z, He T, Ohl CD, Demir HV, Sun H. Robust Whispering-Gallery-Mode Microbubble Lasers from Colloidal Quantum Dots. NANO LETTERS 2017; 17:2640-2646. [PMID: 28288279 DOI: 10.1021/acs.nanolett.7b00447] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Microlasers hold great promise for the development of photonics and optoelectronics. Among the discovered optical gain materials, colloidal quantum dots (CQDs) have been recognized as the most appealing candidate due to the facile emission tunability and solution processability. However, to date, it is still challenging to develop CQD-based microlasers with low cost yet high performance. Moreover, the poor long-term stability of CQDs remains to be the most critical issue, which may block their laser aspirations. Herein, we developed a unique but generic approach to forming a novel type of a whispering-gallery-mode (WGM) microbubble laser from the hybrid CQD/poly(methyl methacrylate) (PMMA) nanocomposites. The formation mechanism of the microbubbles was unraveled by recording the drying process of the nanocomposite droplets. Interestingly, these microbubbles naturally serve as the high-quality WGM laser resonators. By simply changing the CQDs, the lasing emission can be tuned across the whole visible spectral range. Importantly, these microbubble lasers exhibit unprecedented long-term stability (over one year), sufficient for practical applications. As a proof-of-concept, the potential of water vapor sensing was demonstrated. Our results represent a significant advance in microlasers based on the advantageous CQDs and may offer new possibilities for photonics and optoelectronics.
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Affiliation(s)
| | - Van Duong Ta
- Department of Physics, King's College London , Strand, London, WC2R 2LS, United Kingdom
| | - Kheng Swee Leck
- School of Electrical and Electronic Engineering, Luminous! Center of Excellence for Semiconductor Lighting and Displays, Nanyang Technological University , Nanyang Avenue, Singapore 639798, Singapore
| | | | | | - Tingchao He
- College of Physics Science and Technology, Shenzhen University , Shenzhen 518060, China
| | | | - Hilmi Volkan Demir
- School of Electrical and Electronic Engineering, Luminous! Center of Excellence for Semiconductor Lighting and Displays, Nanyang Technological University , Nanyang Avenue, Singapore 639798, Singapore
- Department of Electrical and Electronics Engineering, Department of Physics, and UNAM-National Nanotechnology Research Center, Bilkent University , Bilkent, Ankara 06800, Turkey
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33
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Protesescu L, Yakunin S, Bodnarchuk MI, Bertolotti F, Masciocchi N, Guagliardi A, Kovalenko MV. Monodisperse Formamidinium Lead Bromide Nanocrystals with Bright and Stable Green Photoluminescence. J Am Chem Soc 2016; 138:14202-14205. [PMID: 27737545 PMCID: PMC5799874 DOI: 10.1021/jacs.6b08900] [Citation(s) in RCA: 181] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
Bright green emitters
with adjustable photoluminescence (PL) maxima
in the range of 530–535 nm and full-width at half-maxima (fwhm)
of <25 nm are particularly desirable for applications in television
displays and related technologies. Toward this goal, we have developed
a facile synthesis of highly monodisperse, cubic-shaped formamidinium
lead bromide nanocrystals (FAPbBr3 NCs) with perovskite
crystal structure, tunable PL in the range of 470–540 nm by
adjusting the nanocrystal size (5–12 nm), high quantum yield
(QY) of up to 85% and PL fwhm of <22 nm. High QYs are also retained
in films of FAPbBr3 NCs. In addition, these films exhibit
low thresholds of 14 ± 2 μJ cm–2 for
amplified spontaneous emission.
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Affiliation(s)
- Loredana Protesescu
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich , Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland.,Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Sergii Yakunin
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich , Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland.,Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Maryna I Bodnarchuk
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich , Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland.,Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Federica Bertolotti
- Dipartimento di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell'Insubria , via Valleggio 11, I-22100 Como, Italy
| | - Norberto Masciocchi
- Dipartimento di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell'Insubria , via Valleggio 11, I-22100 Como, Italy
| | - Antonietta Guagliardi
- Dipartimento di Scienza e Alta Tecnologia and To.Sca.Lab, Università dell'Insubria , via Valleggio 11, I-22100 Como, Italy.,Istituto di Crystallografia and To.Sca.Lab, Consiglio Nazionale delle Ricerche , Valleggio 11, I-22100 Como, Italy
| | - Maksym V Kovalenko
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich , Vladimir Prelog Weg 1, CH-8093 Zürich, Switzerland.,Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
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34
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Benad A, Guhrenz C, Bauer C, Eichler F, Adam M, Ziegler C, Gaponik N, Eychmüller A. Cold Flow as Versatile Approach for Stable and Highly Luminescent Quantum Dot-Salt Composites. ACS APPLIED MATERIALS & INTERFACES 2016; 8:21570-5. [PMID: 27482755 DOI: 10.1021/acsami.6b06452] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Since the beginning of the 1980s, colloidally synthesized quantum dots (QDs) have been in the focus of interest due to their possible implementation for color conversion, luminescent light concentrators, and lasing. For all these applications, the QDs benefit from being embedded into a host matrix to ensure stability and usability. Many different host materials used for this purpose still have their individual shortcomings. Here, we present a universal, fast, and flexible approach for the direct incorporation of a wide range of QDs into inorganic ionic crystals using cold flow. The QD solution is mixed with a finely milled salt, followed by the removal of the solvent under vacuum. Under high pressure (GPa), the salt powder loaded with QDs transforms into transparent pellets. This effect is well-known for many inorganic salts (e.g., KCl, KBr, KI, NaCl, CsI, AgCl) from, e.g., sample preparation for IR spectroscopy. With this approach, we are able to obtain strongly luminescent QD-salt composites, have precise control over the loading, and provide a chemically robust matrix ensuring long-term stability of the embedded QDs. Furthermore, we show the photo-, chemical, and thermal stability of the composite materials and their use as color conversion layers for a white light-emitting diode (w-LED). The method presented can potentially be used for all kinds of nanoparticles synthesized in organic as well as in aqueous media.
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Affiliation(s)
- Albrecht Benad
- Physical Chemistry, Technische Universität Dresden , Bergstr. 66b, 01062 Dresden, Germany
| | - Chris Guhrenz
- Physical Chemistry, Technische Universität Dresden , Bergstr. 66b, 01062 Dresden, Germany
| | - Christoph Bauer
- Physical Chemistry, Technische Universität Dresden , Bergstr. 66b, 01062 Dresden, Germany
| | - Franziska Eichler
- Physical Chemistry, Technische Universität Dresden , Bergstr. 66b, 01062 Dresden, Germany
| | - Marcus Adam
- Physical Chemistry, Technische Universität Dresden , Bergstr. 66b, 01062 Dresden, Germany
| | - Christoph Ziegler
- Physical Chemistry, Technische Universität Dresden , Bergstr. 66b, 01062 Dresden, Germany
| | - Nikolai Gaponik
- Physical Chemistry, Technische Universität Dresden , Bergstr. 66b, 01062 Dresden, Germany
| | - Alexander Eychmüller
- Physical Chemistry, Technische Universität Dresden , Bergstr. 66b, 01062 Dresden, Germany
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35
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Gao Y, Yu G, Wang Y, Dang C, Sum TC, Sun H, Demir HV. Green Stimulated Emission Boosted by Nonradiative Resonant Energy Transfer from Blue Quantum Dots. J Phys Chem Lett 2016; 7:2772-2778. [PMID: 27388758 DOI: 10.1021/acs.jpclett.6b01122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Thanks to their tunability and versatility, the colloidal quantum dots (CQDs) made of II-VI semiconductor compound offer the potential to bridge the "green gap" in conventional semiconductors. However, when the CQDs are pumped to much higher initial excitonic states compared to their bandgap, multiexciton interaction is enhanced, leading to a much higher stimulated emission threshold. Here, to circumvent this drawback, for the first time, we show a fully colloidal gain in green enabled by a partially indirect pumping approach assisted by Förster resonance energy transfer process. By introducing the blue CQDs as exciton donors, the lasing threshold of the green CQDs, is reduced dramatically. The blue CQDs thus serve as an energy-transferring buffer medium to reduce excitation energy from pumping photons in a controlled way by injecting photoinduced excitons into green CQDs. Our newly developed colloidal pumping scheme could enable efficient CQD lasers of full visible colors by a single pump source and cascaded exciton transfer. This would potentially pave the way for an efficient multicolor laser for lighting and display applications.
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Affiliation(s)
- Yuan Gao
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371, Singapore
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and The Photonics Institute, Nanyang Technological University , 50 Nanyang Avenue, 639798, Singapore
| | - Guannan Yu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371, Singapore
| | - Yue Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371, Singapore
| | - Cuong Dang
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and The Photonics Institute, Nanyang Technological University , 50 Nanyang Avenue, 639798, Singapore
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371, Singapore
| | - Handong Sun
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371, Singapore
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and The Photonics Institute, Nanyang Technological University , 50 Nanyang Avenue, 639798, Singapore
| | - Hilmi Volkan Demir
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , 21 Nanyang Link, 637371, Singapore
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and The Photonics Institute, Nanyang Technological University , 50 Nanyang Avenue, 639798, Singapore
- Department of Electrical and Electronics Engineering and Department of Physics, UNAM - Institute of Materials Science and Nanotechnology, Bilkent University , 06800 Bilkent, Ankara, Turkey
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36
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Abstract
Chlorophylls are essential for photosynthesis and also one of the most abundant pigments on earth. Using an optofluidic ring resonator of extremely high Q-factors (>10(7)), we investigated the unique characteristics and underlying mechanism of chlorophyll lasers. Chlorophyll lasers with dual lasing bands at 680 nm and 730 nm were observed for the first time in isolated chlorophyll a (Chla). Particularly, a laser at the 730 nm band was realized in 0.1 mM Chla with a lasing threshold of only 8 μJ mm(-2). Additionally, we observed lasing competition between the two lasing bands. The presence of laser emission at the 680 nm band can lead to quenching or significant reduction of laser emission at the 730 nm band, effectively increasing the lasing threshold for the 730 nm band. Further concentration-dependent studies, along with theoretical analysis, elucidated the mechanism that determines when and why the laser emission band appears at one of the two bands, or concomitantly at both bands. Finally, Chla was exploited as the donor in fluorescence resonance energy transfer to extend the laser emission to the near infrared regime with an unprecedented wavelength shift as large as 380 nm. Our work will open a door to the development of novel biocompatible and biodegradable chlorophyll-based lasers for various applications such as miniaturized tunable coherent light sources and in vitro/in vivo biosensing. It will also provide important insight into the chlorophyll fluorescence and photosynthesis processes inside plants.
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Affiliation(s)
- Yu-Cheng Chen
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA.
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37
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Erdem T, Demir HV. Colloidal nanocrystals for quality lighting and displays: milestones and recent developments. NANOPHOTONICS 2016; 5:74-95. [DOI: 10.1515/nanoph-2016-0009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
AbstractRecent advances in colloidal synthesis of nanocrystals have enabled high-quality high-efficiency light-emitting diodes, displays with significantly broader color gamut, and optically-pumped lasers spanning the whole visible regime. Here we review these colloidal platforms covering the milestone studies together with recent developments. In the review, we focus on the devices made of colloidal quantum dots (nanocrystals), colloidal quantum rods (nanorods), and colloidal quantum wells (nanoplatelets) as well as those of solution processed perovskites and phosphor nanocrystals. The review starts with an introduction to colloidal nanocrystal photonics emphasizing the importance of colloidal materials for light-emitting devices. Subsequently,we continue with the summary of important reports on light-emitting diodes, in which colloids are used as the color converters and then as the emissive layers in electroluminescent devices. Also,we review the developments in color enrichment and electroluminescent displays. Next, we present a summary of important reports on the lasing of colloidal semiconductors. Finally, we summarize and conclude the review presenting a future outlook.
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Affiliation(s)
- Talha Erdem
- 1Department of Electrical and Electronics Engineering, Department of Physics, Institute of Materials Science and Nanotechnology, and UNAM-National Nanotechnology Research Center, Bilkent, Ankara Turkey 06800
| | - Hilmi Volkan Demir
- 2Department of Electrical and Electronics Engineering, Department of Physics, Institute of Materials Science and Nanotechnology, and UNAM-National Nanotechnology Research Center, Bilkent, Ankara Turkey 06800 and Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798
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38
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Xu Y, Chen Q, Zhang C, Wang R, Wu H, Zhang X, Xing G, Yu WW, Wang X, Zhang Y, Xiao M. Two-Photon-Pumped Perovskite Semiconductor Nanocrystal Lasers. J Am Chem Soc 2016; 138:3761-8. [DOI: 10.1021/jacs.5b12662] [Citation(s) in RCA: 426] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yanqing Xu
- National
Laboratory of Solid State Microstructures, School of Physics, and
Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Qi Chen
- National
Laboratory of Solid State Microstructures, School of Physics, and
Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Chunfeng Zhang
- National
Laboratory of Solid State Microstructures, School of Physics, and
Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
- Synergetic
Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Rui Wang
- National
Laboratory of Solid State Microstructures, School of Physics, and
Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Hua Wu
- State
Key Laboratory on Integrated Optoelectronics and College of Electronic
Science and Engineering, Jilin University, Changchun 130012, China
| | - Xiaoyu Zhang
- State
Key Laboratory on Integrated Optoelectronics and College of Electronic
Science and Engineering, Jilin University, Changchun 130012, China
| | - Guichuan Xing
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergistic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P.R. China
| | - William W. Yu
- State
Key Laboratory on Integrated Optoelectronics and College of Electronic
Science and Engineering, Jilin University, Changchun 130012, China
| | - Xiaoyong Wang
- National
Laboratory of Solid State Microstructures, School of Physics, and
Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Yu Zhang
- State
Key Laboratory on Integrated Optoelectronics and College of Electronic
Science and Engineering, Jilin University, Changchun 130012, China
| | - Min Xiao
- National
Laboratory of Solid State Microstructures, School of Physics, and
Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
- Synergetic
Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department
of Physics, University of Arkansas, Fayetteville, Arkansas 72701, United States
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39
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Lignos I, Stavrakis S, Nedelcu G, Protesescu L, deMello AJ, Kovalenko MV. Synthesis of Cesium Lead Halide Perovskite Nanocrystals in a Droplet-Based Microfluidic Platform: Fast Parametric Space Mapping. NANO LETTERS 2016; 16:1869-77. [PMID: 26836149 DOI: 10.1021/acs.nanolett.5b04981] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Prior to this work, fully inorganic nanocrystals of cesium lead halide perovskite (CsPbX3, X = Br, I, Cl and Cl/Br and Br/I mixed halide systems), exhibiting bright and tunable photoluminescence, have been synthesized using conventional batch (flask-based) reactions. Unfortunately, our understanding of the parameters governing the formation of these nanocrystals is still very limited due to extremely fast reaction kinetics and multiple variables involved in ion-metathesis-based synthesis of such multinary halide systems. Herein, we report the use of a droplet-based microfluidic platform for the synthesis of CsPbX3 nanocrystals. The combination of online photoluminescence and absorption measurements and the fast mixing of reagents within such a platform allows the rigorous and rapid mapping of the reaction parameters, including molar ratios of Cs, Pb, and halide precursors, reaction temperatures, and reaction times. This translates into enormous savings in reagent usage and screening times when compared to analogous batch synthetic approaches. The early-stage insight into the mechanism of nucleation of metal halide nanocrystals suggests similarities with multinary metal chalcogenide systems, albeit with much faster reaction kinetics in the case of halides. Furthermore, we show that microfluidics-optimized synthesis parameters are also directly transferrable to the conventional flask-based reaction.
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Affiliation(s)
| | | | - Georgian Nedelcu
- Empa-Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Loredana Protesescu
- Empa-Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | | | - Maksym V Kovalenko
- Empa-Swiss Federal Laboratories for Materials Science and Technology , Überlandstrasse 129, 8600, Dübendorf, Switzerland
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40
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Ong X, Zhi M, Gupta S, Chan Y. Wet-Chemically Synthesized Colloidal Semiconductor Nanostructures as Optical Gain Media. Chemphyschem 2016; 17:582-97. [PMID: 26822201 DOI: 10.1002/cphc.201500975] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Indexed: 11/07/2022]
Abstract
An overview on the development of wet-chemically synthesized semiconductor nanostructures as optical gain materials is presented in this Review, beginning with the first demonstration of amplified spontaneous emission in zero-dimensional quantum dots and evolving to more sophisticated heterostructures such as one-dimensional core-seeded nanorods, branched core-seeded tetrapods and two-dimensional nanoplatelets. The advantages and challenges of utilizing strongly quantum-confined colloidal semiconductor materials as gain media are discussed, and a concerted effort is made to elaborate on how the progression towards more structurally complex architectures has allowed for dramatic improvements in performance and stability over the archetypal quantum dot.
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Affiliation(s)
- Xuanwei Ong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Min Zhi
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Shashank Gupta
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Yinthai Chan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore.
- Institute of Materials Research and Engineering A*STAR, 3 Research Link, Singapore, 117602, Singapore.
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41
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Wu J, Yin X, Wang W, Hong X, Du Y, Geng Y, Li X. All-fiber reflecting temperature probe based on the simplified hollow-core photonic crystal fiber filled with aqueous quantum dot solution. APPLIED OPTICS 2016; 55:974-978. [PMID: 26906361 DOI: 10.1364/ao.55.000974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An all-fiber reflecting fluorescent temperature probe is proposed based on the simplified hollow-core photonic crystal fiber (SHC-PCF) filled with an aqueous CdSe/ZnS quantum dot solution. SHC-PCF is an excellent PCF used to fill liquid materials, which has low loss transmission bands in the visible wavelength range and enlarged core sizes. Both end faces of the SHC-PCF were spliced with multimode fiber after filling in order to generate a more stable and robust waveguide structure. The obtained temperature sensitivity dependence of the emission wavelength and the self-referenced intensity are 126.23 pm/°C and -0.007/°C in the temperature range of -10°C-120°C, respectively.
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McLellan LJ, Guilhabert B, Laurand N, Dawson MD. CdS(x)Se(1-x)/ZnS semiconductor nanocrystal laser with sub 10kW/cm(2) threshold and 40nJ emission output at 600 nm. OPTICS EXPRESS 2016; 24:A146-A153. [PMID: 26832568 DOI: 10.1364/oe.24.00a146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A colloidal quantum dot laser emitting at 600 nm with a sub 10kW/cm(2) threshold at 5ns pulse pumping is reported. The device has a second order distributed feedback cavity for vertical emission and incorporates a bilayer planar waveguide structure based on a film of yellow-orange alloyed-core/shell CdS(x)Se(1-x)/ZnS quantum dots over-coated with polyvinyl alcohol. A study of the amplified spontaneous regime indicates that the quantum dot gain region behaves like a quasi-three level system and that the bilayer structure design increases the modal gain compared to a single layer of quantum dots. An output of 40nJ per pulse is measured for a total pump-to-signal efficiency above threshold of 3%.
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Tepliakov NV, Leonov MY, Baranov AV, Fedorov AV, Rukhlenko ID. Quantum theory of electroabsorption in semiconductor nanocrystals. OPTICS EXPRESS 2016; 24:A52-A57. [PMID: 26832597 DOI: 10.1364/oe.24.000a52] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We develop a simple quantum-mechanical theory of interband absorption by semiconductor nanocrystals exposed to a dc electric field. The theory is based on the model of noninteracting electrons and holes in an infinitely deep quantum well and describes all the major features of electroabsorption, including the Stark effect, the Franz-Keldysh effect, and the field-induced spectral broadening. It is applicable to nanocrystals of different shapes and dimensions (quantum dots, nanorods, and nanoplatelets), and will prove useful in modeling and design of electrooptical devices based on ensembles of semiconductor nanocrystals.
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Chen Q, Kiraz A, Fan X. Optofluidic FRET lasers using aqueous quantum dots as donors. LAB ON A CHIP 2016; 16:353-9. [PMID: 26659274 PMCID: PMC4703430 DOI: 10.1039/c5lc01004g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
An optofluidic FRET (fluorescence resonance energy transfer) laser is formed by putting FRET pairs inside a microcavity acting as a gain medium. This integration of an optofluidic laser and the FRET mechanism provides novel research frontiers, including sensitive biochemical analysis and novel photonic devices, such as on-chip coherent light sources and bio-tunable lasers. Here, we investigated an optofluidic FRET laser using quantum dots (QDs) as FRET donors. We achieved lasing from Cy5 as the acceptor in a QD-Cy5 pair upon excitation at 450 nm, where Cy5 has negligible absorption by itself. The threshold was approximately 14 μJ mm(-2). The demonstrated capability of QDs as donors in the FRET laser greatly improves the versatility of optofluidic laser operation due to the broad and large absorption cross section of the QDs in the blue and UV spectral regions. The excitation efficiency of the acceptor molecules through a FRET channel was also analyzed, showing that the energy transfer rate and the non-radiative Auger recombination rate of QDs play a significant role in FRET laser performance.
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Affiliation(s)
- Qiushu Chen
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Alper Kiraz
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA. and Department of Physics, Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Xudong Fan
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
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Wang Y, Li X, Zhao X, Xiao L, Zeng H, Sun H. Nonlinear Absorption and Low-Threshold Multiphoton Pumped Stimulated Emission from All-Inorganic Perovskite Nanocrystals. NANO LETTERS 2016; 16:448-53. [PMID: 26652773 DOI: 10.1021/acs.nanolett.5b04110] [Citation(s) in RCA: 209] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Halide perovskite materials have attracted intense research interest due to the striking performance in photoharvesting photovoltaics as well as photoemitting applications. Very recently, the emerging CsPbX3 (X = Cl, Br, I) perovskite nanocrystals have been demonstrated to be efficient emitters with photoluminescence quantum yield as high as ∼90%, room temperature single photon sources, and favorable lasing materials. Herein, the nonlinear optical properties, in particular, the multiphoton absorption and resultant photoluminescence of the CsPbBr3 nanocrystals, were investigated. Notably, a large two-photon absorption cross-section of up to ∼1.2 × 10(5) GM is determined for 9 nm sized CsPbBr3 nanocrystals. Moreover, low-threshold frequency-upconverted stimulated emission by two-photon absorption was observed from the thin film of close-packed CsPbBr3 nanocrystals. The stimulated emission is found to be photostable and wavelength-tunable. We further realize the three-photon pumped stimulated emission in green spectra range from colloidal nanocrystals for the first time. Our results reveal the strong nonlinear absorption in the emerging CsPbX3 perovskite nanocrystals and suggest these nanocrystals as attractive multiphoton pumped optical gain media, which would offer new opportunities in nonlinear photonics and revive the nonlinear optical devices.
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Affiliation(s)
- Yue Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
| | - Xiaoming Li
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology , Nanjing, 210094, China
- State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics , Nanjing 210085, China
| | - Xin Zhao
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
| | - Lian Xiao
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
| | - Haibo Zeng
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology , Nanjing, 210094, China
| | - Handong Sun
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore
- Centre for Disruptive Photonic Technologies (CDPT), Nanyang Technological University , Singapore 637371, Singapore
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Chandrahalim H, Fan X. Reconfigurable Solid-state Dye-doped Polymer Ring Resonator Lasers. Sci Rep 2015; 5:18310. [PMID: 26674508 PMCID: PMC4682137 DOI: 10.1038/srep18310] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 11/16/2015] [Indexed: 11/09/2022] Open
Abstract
This paper presents wavelength configurable on-chip solid-state ring lasers fabricated by a single-mask standard lithography. The single- and coupled-ring resonator hosts were fabricated on a fused-silica wafer and filled with 3,3'-Diethyloxacarbocyanine iodide (CY3), Rhodamine 6G (R6G), and 3,3'-Diethylthiadicarbocyanine iodide (CY5)-doped polymer as the reconfigurable gain media. The recorded lasing threshold was ~220 nJ/mm(2) per pulse for the single-ring resonator laser with R6G, marking the lowest threshold shown by solid-state dye-doped polymer lasers fabricated with a standard lithography process on a chip. A single-mode lasing from a coupled-ring resonator system with the lasing threshold of ~360 nJ/mm(2) per pulse was also demonstrated through the Vernier effect. The renewability of the dye-doped polymer was examined by removing and redepositing the dye-doped polymer on the same resonator hosts for multiple cycles. We recorded consistent emissions from the devices for all trials, suggesting the feasibility of employing this technology for numerous photonic and biochemical sensing applications that entail for sustainable, reconfigurable, and low lasing threshold coherent light sources on a chip.
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Affiliation(s)
- Hengky Chandrahalim
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Xudong Fan
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
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47
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Wang Y, Li X, Song J, Xiao L, Zeng H, Sun H. All-Inorganic Colloidal Perovskite Quantum Dots: A New Class of Lasing Materials with Favorable Characteristics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:7101-8. [PMID: 26448638 DOI: 10.1002/adma.201503573] [Citation(s) in RCA: 487] [Impact Index Per Article: 54.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/20/2015] [Indexed: 05/18/2023]
Abstract
All-inorganic colloidal cesium lead halide perovskite quantum dots (CsPbX3 , X = Cl, Br, I) are revealed to be a new class of favorable optical-gain materials, which show -combined merits of both colloidal quantum dots and halide perovskites. Low-threshold and -ultrastable stimulated emission is -demonstrated under atmospheric conditions with wavelength tunability across the whole -visible spectrum via either size or composition control.
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Affiliation(s)
- Yue Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Xiaoming Li
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
- State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210085, China
| | - Jizhong Song
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Lian Xiao
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Haibo Zeng
- Institute of Optoelectronics & Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Handong Sun
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
- Centre for Disruptive Photonic Technologies (CDPT), Nanyang Technological University, Singapore, 637371, Singapore
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48
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He T, Gao Y, Gao Y, Lin X, Chen R, Hu W, Zhao X, Wang Y, Demir HV, Fan Q, Grimsdale AC, Sun H. Unusual Fluorescent Properties of Stilbene Units and CdZnS/ZnS Quantum Dots Nanocomposites: White-Light Emission in Solution versus Light-Harvesting in Films. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tingchao He
- College of Physics Science & Technology; Shenzhen University; Shenzhen 518060 China
| | - Yang Gao
- School of Materials Science and Engineering; Nanyang Technological University; Singapore 639798 Singapore
| | - Yuan Gao
- Division of Physics and Applied Physics and Centre for Disruptive Photonic Technologies (CDPT); School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Xiaodong Lin
- College of Physics Science & Technology; Shenzhen University; Shenzhen 518060 China
| | - Rui Chen
- Department of Electrical and Electronic Engineering; South University of Science and Technology of China; Shenzhen Guangdong 518055 P. R. China
| | - Wenbo Hu
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM); Nanjing University of Posts & Telecommunications; Nanjing 210023 Jiangsu China
| | - Xin Zhao
- Division of Physics and Applied Physics and Centre for Disruptive Photonic Technologies (CDPT); School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Yue Wang
- Division of Physics and Applied Physics and Centre for Disruptive Photonic Technologies (CDPT); School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hilmi Volkan Demir
- School of Electrical and Electronic Engineering; Nanyang Technological University; Nanyang Avenue Singapore 639798 Singapore
- Department of Electrical and Electronics Engineering; Department of Physics; UNAM - Institute of Materials Science and Nanotechnology; Ankara 06800 Turkey
| | - Quli Fan
- Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM); Nanjing University of Posts & Telecommunications; Nanjing 210023 Jiangsu China
| | - Andrew C. Grimsdale
- School of Materials Science and Engineering; Nanyang Technological University; Singapore 639798 Singapore
| | - Handong Sun
- Division of Physics and Applied Physics and Centre for Disruptive Photonic Technologies (CDPT); School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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49
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Grim JQ, Manna L, Moreels I. A sustainable future for photonic colloidal nanocrystals. Chem Soc Rev 2015; 44:5897-914. [PMID: 26084788 DOI: 10.1039/c5cs00285k] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Colloidal nanocrystals - produced in a growing variety of shapes, sizes and compositions - are rapidly developing into a new generation of photonic materials, spanning light emitting as well as energy harvesting applications. Precise tailoring of their optoelectronic properties enables them to satisfy disparate application-specific requirements. However, the presence of toxic heavy metals such as cadmium and lead in some of the most mature nanocrystals is a serious drawback which may ultimately preclude their use in consumer applications. Although the pursuit of non-toxic alternatives has occurred in parallel to the well-developed Cd- and Pb-based nanocrystals, synthetic challenges have, until recently, curbed progress. In this review, we highlight recent advances in the development of heavy-metal-free nanocrystals within the context of specific photonic applications. We also describe strategies to transfer some of the advantageous nanocrystal features such as shape control to non-toxic materials. Finally, we present recent developments that have the potential to make substantial impacts on the quest to attain a balance between performance and sustainability in photonics.
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Affiliation(s)
- Joel Q Grim
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, IT-16163 Genova, Italy.
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50
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Li M, Zhi M, Zhu H, Wu WY, Xu QH, Jhon MH, Chan Y. Ultralow-threshold multiphoton-pumped lasing from colloidal nanoplatelets in solution. Nat Commun 2015; 6:8513. [PMID: 26419950 PMCID: PMC4598837 DOI: 10.1038/ncomms9513] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 09/01/2015] [Indexed: 12/05/2022] Open
Abstract
Although multiphoton-pumped lasing from a solution of chromophores is important in the emerging fields of nonlinear optofluidics and bio-photonics, conventionally used organic dyes are often rendered unsuitable because of relatively small multiphoton absorption cross-sections and low photostability. Here, we demonstrate highly photostable, ultralow-threshold multiphoton-pumped biexcitonic lasing from a solution of colloidal CdSe/CdS nanoplatelets within a cuvette-based Fabry–Pérot optical resonator. We find that colloidal nanoplatelets surprisingly exhibit an optimal lateral size that minimizes lasing threshold. These nanoplatelets possess very large gain cross-sections of 7.3 × 10−14 cm2 and ultralow lasing thresholds of 1.2 and 4.3 mJ cm−2 under two-photon (λexc=800 nm) and three-photon (λexc=1.3 μm) excitation, respectively. The highly polarized emission from the nanoplatelet laser shows no significant photodegradation over 107 laser shots. These findings constitute a more comprehensive understanding of the utility of colloidal semiconductor nanoparticles as the gain medium in high-performance frequency-upconversion liquid lasers. Multiphoton-pumped lasing from semiconductor nanocrystals in solution is difficult due to Auger recombination, low volume fraction and high threshold. Here, Li et al. demonstrate photostable, ultralow threshold multi-photon pumped lasing from colloidal CdSe/CdS nanoplatelets in a Fabry-Pérot optical resonator.
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Affiliation(s)
- Mingjie Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Min Zhi
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Hai Zhu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Wen-Ya Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Qing-Hua Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Mark Hyunpong Jhon
- Institute of High Performance Computing A*STAR, 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Yinthai Chan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.,Institute of Materials Research &Engineering A*STAR, 3 Research Link, Singapore 117602, Singapore.,Microfluidics Systems Biology Lab, Institute of Molecular and Cell Biology A*STAR, 61 Biopolis Drive, Singapore 138673, Singapore
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