1
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Gronkiewicz K, Richter L, Knechtel F, Pyrcz P, Leidinger P, Günther S, Ploetz E, Tinnefeld P, Kamińska I. Expanding the range of graphene energy transfer with multilayer graphene. NANOSCALE 2024; 16:13464-13470. [PMID: 38922309 DOI: 10.1039/d4nr01723d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
The interaction between single emitters and graphene in the context of energy transfer has attracted significant attention due to its potential applications in fields such as biophysics and super-resolution microscopy. In this study, we investigate the influence of the number of graphene layers on graphene energy transfer (GET) by placing single dye molecules at defined distances from monolayer, bilayer, and trilayer graphene substrates. We employ DNA origami nanostructures as chemical adapters to position the dye molecules precisely. Fluorescence lifetime measurements and analysis reveal an additive effect of graphene layers on the energy transfer rate extending the working range of GET up to distances of approximately 50-60 nm. Moreover, we show that switching a DNA pointer strand between two positions on a DNA origami nanostructure at a height of >28 nm above graphene is substantially better visualized with multilayer graphene substrates suggesting enhanced capabilities for applications such as biosensing and super-resolution microscopy for larger systems and distances. This study provides insights into the influence of graphene layers on energy transfer dynamics and offers new possibilities for exploiting graphene's unique properties in various nanotechnological applications.
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Affiliation(s)
- Karolina Gronkiewicz
- Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Lars Richter
- Department of Chemistry and Center for NanoScience, Ludwig Maximilian University of Munich, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Fabian Knechtel
- Department of Chemistry and Center for NanoScience, Ludwig Maximilian University of Munich, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Patryk Pyrcz
- Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Paul Leidinger
- Department of Chemistry, Technical University of Munich (TUM), Catalysis Research Center, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Sebastian Günther
- Department of Chemistry, Technical University of Munich (TUM), Catalysis Research Center, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Evelyn Ploetz
- Department of Chemistry and Center for NanoScience, Ludwig Maximilian University of Munich, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Philip Tinnefeld
- Department of Chemistry and Center for NanoScience, Ludwig Maximilian University of Munich, Butenandtstraße 5-13, 81377 Munich, Germany
| | - Izabela Kamińska
- Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
- Department of Chemistry and Center for NanoScience, Ludwig Maximilian University of Munich, Butenandtstraße 5-13, 81377 Munich, Germany
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2
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Wang Z, Kalathingal V, Trushin M, Liu J, Wang J, Guo Y, Özyilmaz B, Nijhuis CA, Eda G. Upconversion electroluminescence in 2D semiconductors integrated with plasmonic tunnel junctions. NATURE NANOTECHNOLOGY 2024; 19:993-999. [PMID: 38641642 DOI: 10.1038/s41565-024-01650-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 03/13/2024] [Indexed: 04/21/2024]
Abstract
Plasmonic tunnel junctions are a unique electroluminescent system in which light emission occurs via an interplay between tunnelling electrons and plasmonic fields instead of electron-hole recombination as in conventional light-emitting diodes. It was previously shown that placing luminescent molecules in the tunneling pathway of nanoscopic tunnel junctions results in peculiar upconversion electroluminescence where the energy of emitted photons exceeds that of excitation electrons. Here we report the observation of upconversion electroluminescence in macroscopic van der Waals plasmonic tunnel junctions comprising gold and few-layer graphene electrodes separated by a ~2-nm-thick hexagonal boron nitride tunnel barrier and a monolayer semiconductor. We find that the semiconductor ground exciton emission is triggered at excitation electron energies lower than the semiconductor optical gap. Interestingly, this upconversion is reached in devices operating at a low conductance (<10-6 S) and low power density regime (<102 W cm-2), defying explanation through existing proposed mechanisms. By examining the scaling relationship between plasmonic and excitonic emission intensities, we elucidate the role of inelastic electron tunnelling dipoles that induce optically forbidden transitions in the few-layer graphene electrode and ultrafast hot carrier transfer across the van der Waals interface.
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Affiliation(s)
- Zhe Wang
- Department of Chemistry, National University of Singapore, Singapore, Singapore
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Vijith Kalathingal
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
- Department of Physics, Kannur University, Swami Anandatheertha Campus-Payyanur, Kannur, India
| | - Maxim Trushin
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, Singapore
- Department of Material Science and Engineering, National University of Singapore, Singapore, Singapore
| | - Jiawei Liu
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, Singapore
- Department of Physics, National University of Singapore, Singapore, Singapore
| | - Junyong Wang
- CAS Key Laboratory of Nano-Bio Interface and Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Yongxin Guo
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore
| | - Barbaros Özyilmaz
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, Singapore
- Department of Material Science and Engineering, National University of Singapore, Singapore, Singapore
- Department of Physics, National University of Singapore, Singapore, Singapore
| | - Christian A Nijhuis
- Hybrid Materials for Opto-Electronics Group, Department of Molecules and Materials, MESA+ Institute for Nanotechnology, Molecules Center and Center for Brain-Inspired Nano Systems, Faculty of Science and Technology, University of Twente, Enschede, the Netherlands.
| | - Goki Eda
- Department of Chemistry, National University of Singapore, Singapore, Singapore.
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, Singapore.
- Department of Physics, National University of Singapore, Singapore, Singapore.
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3
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Tebbe D, Schütte M, Watanabe K, Taniguchi T, Stampfer C, Beschoten B, Waldecker L. Distance Dependence of the Energy Transfer Mechanism in WS_{2}-Graphene Heterostructures. PHYSICAL REVIEW LETTERS 2024; 132:196902. [PMID: 38804923 DOI: 10.1103/physrevlett.132.196902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/19/2024] [Accepted: 03/21/2024] [Indexed: 05/29/2024]
Abstract
We report on the mechanism of energy transfer in Van der Waals heterostructures of the two-dimensional semiconductor WS_{2} and graphene with varying interlayer distances, achieved through spacer layers of hexagonal boron nitride (h-BN). We record photoluminescence and reflection spectra at interlayer distances between 0.5 and 5.8 nm (0-16 h-BN layers). We find that the energy transfer is dominated by states outside the light cone, indicative of a Förster transfer process, with an additional contribution from a Dexter process at 0.5 nm interlayer distance. We find that the measured dependence of the luminescence intensity on interlayer distances above 1 nm can be quantitatively described using recently reported values of the Förster transfer rates of thermalized charge carriers. At smaller interlayer distances, the experimentally observed transfer rates exceed the predictions and, furthermore, depend on excess energy as well as on excitation density. Since the transfer probability of the Förster mechanism depends on the momentum of electron-hole pairs, we conclude that, at these distances, the transfer is driven by nonrelaxed charge carrier distributions.
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Affiliation(s)
- David Tebbe
- 2nd Institute of Physics and JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany
| | - Marc Schütte
- 2nd Institute of Physics and JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany
| | - K Watanabe
- Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - T Taniguchi
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Christoph Stampfer
- 2nd Institute of Physics and JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany
- Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Bernd Beschoten
- 2nd Institute of Physics and JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany
- JARA-FIT Institute for Quantum Information, Forschungszentrum Jülich GmbH and RWTH Aachen University, 52074 Aachen, Germany
| | - Lutz Waldecker
- 2nd Institute of Physics and JARA-FIT, RWTH Aachen University, 52074 Aachen, Germany
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4
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Wiwatowski K, Sulowska K, Mackowski S. Single-Molecule Fluorescence Probes Interactions between Photoactive Protein-Silver Nanowire Conjugate and Monolayer Graphene. Int J Mol Sci 2024; 25:4873. [PMID: 38732092 PMCID: PMC11084953 DOI: 10.3390/ijms25094873] [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: 03/30/2024] [Revised: 04/27/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
In this work, we apply single-molecule fluorescence microscopy and spectroscopy to probe plasmon-enhanced fluorescence and Förster resonance energy transfer in a nanoscale assemblies. The structure where the interplay between these two processes was present consists of photoactive proteins conjugated with silver nanowires and deposited on a monolayer graphene. By comparing the results of continuous-wave and time-resolved fluorescence microscopy acquired for this structure with those obtained for the reference samples, where proteins were coupled with either a graphene monolayer or silver nanowires, we find clear indications of the interplay between plasmonic enhancement and the energy transfer to graphene. Namely, fluorescence intensities calculated for the structure, where proteins were coupled to graphene only, are less than for the structure playing the central role in this study, containing both silver nanowires and graphene. Conversely, decay times extracted for the latter are shorter compared to a protein-silver nanowire conjugate, pointing towards emergence of the energy transfer. Overall, the results show that monitoring the optical properties of single emitters in a precisely designed hybrid nanostructure provides an elegant way to probe even complex combination of interactions at the nanoscale.
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Affiliation(s)
- Kamil Wiwatowski
- Nanophotonics Group, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland; (K.W.); (K.S.)
| | - Karolina Sulowska
- Nanophotonics Group, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland; (K.W.); (K.S.)
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Sebastian Mackowski
- Nanophotonics Group, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland; (K.W.); (K.S.)
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5
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Meng LC, Hou YB. Electric-field modulated energy transfer in phosphorescent material- and fluorescent material-codoped polymer light-emitting diodes. RSC Adv 2024; 14:12294-12302. [PMID: 38633491 PMCID: PMC11019667 DOI: 10.1039/d4ra00669k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
The excited-state energy transfer widely exists in mixed-material systems and devices. The modulation of an electric field on the energy transfer in photoluminescence has been demonstrated. However, to date, no studies on the electric-field modulation of the excited-state energy transfer in organic optoelectronic devices have been reported. Herein, we investigate the effect of an electric field on the energy transfer in the poly(N-vinylcarbazole) (PVK) thin films doped with iridium(iii)[bis(4,6-difluorophenyl)pyridinato-N,C2']-tetrakis(1-pyrazolyl)borate (Fir6) and 5,6,11,12-tetraphenylnaphthacene (rubrene) (PVK:Fir6:rubrene) and the corresponding light-emitting diodes. Combined with the Onsager model describing electric-field enhanced exciton dissociation, we find that the electric field increases the rate of Dexter energy transfer from Fir6 to rubrene in the films and the diodes. The voltage-dependent color shift in the PVK:Fir6:rubrene light-emitting diodes can be explained by the electric-field enhanced Dexter energy transfer from Fir6 to rubrene. Our findings are important for the control of energy transfer process in organic optoelectronic devices by an electric field for desirable applications.
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Affiliation(s)
- Ling-Chuan Meng
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University Beijing 100044 PR China
| | - Yan-Bing Hou
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University Beijing 100044 PR China
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6
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Karmakar A, Kazimierczuk T, Antoniazzi I, Raczyński M, Park S, Jang H, Taniguchi T, Watanabe K, Babiński A, Al-Mahboob A, Molas MR. Excitation-Dependent High-Lying Excitonic Exchange via Interlayer Energy Transfer from Lower- to- Higher Bandgap 2D Material. NANO LETTERS 2023. [PMID: 37289519 DOI: 10.1021/acs.nanolett.3c01127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
High light absorption (∼15%) and strong photoluminescence (PL) emission in monolayer (1L) transition metal dichalcogenides (TMDs) make them ideal candidates for optoelectronic device applications. Competing interlayer charge transfer (CT) and energy transfer (ET) processes control the photocarrier relaxation pathways in TMD heterostructures (HSs). In TMDs, long-distance ET can survive up to several tens of nm, unlike the CT process. Our experiment shows that an efficient ET occurs from the 1Ls WSe2-to-MoS2 with an interlayer hexagonal boron nitride (hBN), due to the resonant overlapping of the high-lying excitonic states between the two TMDs, resulting in enhanced HS MoS2 PL emission. This type of unconventional ET from the lower-to-higher optical bandgap material is not typical in the TMD HSs. With increasing temperature, the ET process becomes weaker due to the increased electron-phonon scattering, destroying the enhanced MoS2 emission. Our work provides new insight into the long-distance ET process and its effect on the photocarrier relaxation pathways.
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Affiliation(s)
- Arka Karmakar
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Tomasz Kazimierczuk
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Igor Antoniazzi
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Mateusz Raczyński
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Suji Park
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Houk Jang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Takashi Taniguchi
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Kenji Watanabe
- Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Adam Babiński
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
| | - Abdullah Al-Mahboob
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Maciej R Molas
- Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
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7
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He Z, Li F, Zuo P, Tian H. Principles and Applications of Resonance Energy Transfer Involving Noble Metallic Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3083. [PMID: 37109920 PMCID: PMC10145016 DOI: 10.3390/ma16083083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/01/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
Over the past several years, resonance energy transfer involving noble metallic nanoparticles has received considerable attention. The aim of this review is to cover advances in resonance energy transfer, widely exploited in biological structures and dynamics. Due to the presence of surface plasmons, strong surface plasmon resonance absorption and local electric field enhancement are generated near noble metallic nanoparticles, and the resulting energy transfer shows potential applications in microlasers, quantum information storage devices and micro-/nanoprocessing. In this review, we present the basic principle of the characteristics of noble metallic nanoparticles, as well as the representative progress in resonance energy transfer involving noble metallic nanoparticles, such as fluorescence resonance energy transfer, nanometal surface energy transfer, plasmon-induced resonance energy transfer, metal-enhanced fluorescence, surface-enhanced Raman scattering and cascade energy transfer. We end this review with an outlook on the development and applications of the transfer process. This will offer theoretical guidance for further optical methods in distance distribution analysis and microscopic detection.
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Affiliation(s)
- Zhicong He
- School of Mechanical and Electrical Engineering, Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430073, China
- School of Mechanical and Electrical Engineering, Hubei Polytechnic University, Huangshi 435003, China
- Hubei Key Laboratory of Intelligent Transportation Technology and Device, Hubei Polytechnic University, Huangshi 435003, China
| | - Fang Li
- School of Mechanical and Electrical Engineering, Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430073, China
| | - Pei Zuo
- School of Mechanical and Electrical Engineering, Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430073, China
| | - Hong Tian
- School of Mechanical and Electrical Engineering, Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430073, China
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8
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Talha-Dean T, Chen K, Mastroianni G, Gesuele F, Mol J, Palma M. Nanoscale Control of DNA-Linked MoS 2-Quantum Dot Heterostructures. Bioconjug Chem 2023; 34:78-84. [PMID: 35969686 PMCID: PMC9853502 DOI: 10.1021/acs.bioconjchem.2c00285] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/25/2022] [Indexed: 01/24/2023]
Abstract
The ability to control the assembly of mixed-dimensional heterostructures with nanoscale control is key for the fabrication of novel nanohybrid systems with new functionalities, particularly for optoelectronics applications. Herein we report a strategy to control the assembly of heterostructures and tune their electronic coupling employing DNA as a linker. We functionalized MoS2 nanosheets (NSs) with biotin-terminated dsDNA employing three different chemical strategies, namely, thiol, maleimide, and aryl diazonium. This allowed us to then tether streptavidinated quantum dots (QDs) to the DNA functionalized MoS2 surface via biotin-avidin recognition. Nanoscale control over the separation between QDs and NSs was achieved by varying the number of base pairs (bp) constituting the DNA linker, between 10, 20, and 30 bp, corresponding to separations of 3.4, 6.8, and 13.6 nm, respectively. Spectroscopic data confirmed the successful functionalization, while atomic force and transmission electron microscopy were employed to image the nanohybrids. In solution steady-state and time-resolved photoluminescence demonstrated the electronic coupling between the two nanostructures, that in turn was observed to progressively scale as a function of DNA linker employed and hence distance between the two nanomoieties in the hybrids.
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Affiliation(s)
- Teymour Talha-Dean
- Department
of Physics and Astronomy, Queen Mary University
of London, London, E1 4NS, United Kingdom
- Institute
of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 138634, Singapore
| | - Kai Chen
- Department
of Chemistry, Queen Mary University of London, London, E1 4NS, United Kingdom
| | - Giulia Mastroianni
- School
of Biological and Behavioral Sciences, Queen
Mary University of London, London, E1 4NS, United Kingdom
| | - Felice Gesuele
- Department
of Physics “Ettore Pancini”, University of Naples “Federico II”, Via Cinthia, 21 Ed. 6, 80126 Napoli, Italy
| | - Jan Mol
- Department
of Physics and Astronomy, Queen Mary University
of London, London, E1 4NS, United Kingdom
| | - Matteo Palma
- Department
of Chemistry, Queen Mary University of London, London, E1 4NS, United Kingdom
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9
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Liang X, Qin C, Qiao Z, Kang W, Yin H, Dong S, Li X, Wang S, Su X, Zhang G, Chen R, Hu J, Xiao L, Jia S. Optical interference effect in the hybrid quantum dots/two-dimensional materials: photoluminescence enhancement and modulation. OPTICS EXPRESS 2022; 30:26557-26569. [PMID: 36236844 DOI: 10.1364/oe.460054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/17/2022] [Indexed: 06/16/2023]
Abstract
The optical interference effect originating from the multiple reflections between the two-dimensional (2D) materials and the substrates has been used to dramatically enhance their Raman signal. However, this effect in the hybrid structures of colloidal quantum dots (QD) coupled to 2D materials is always overlooked. Here we theoretically prove that the photoluminescence (PL) intensities of the QD films in the QD-2D hybrid structures can be strongly enhanced and modulated by the optical interference effect between QD and 2D interfaces, breaking the inherent standpoint that PL intensities of the QD films are always prominently quenched in these hybrid structures. The theoretical predictions have been well confirmed by experimental measurements of PL properties of CdSe/ZnS and CdSeTe/ZnS QD on different 2D materials (such as WSe2, MoS2, and h-BN). PL intensities of these QD films have been periodically modulated from almost disappearing to strong enhancement (with the enhancement of about 6 times). The optical interference effect uncovered in this work enables a powerful method to manipulate the PL property of the QD films in the different QD-2D hybrid structures. These results can boost the optical performance of the QD-based electronic and optoelectronic devices in the hybrid QD-2D structures.
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10
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Roy R, Holec D, Kratzer M, Muenzer P, Kaushik P, Michal L, Kumar GS, Zajíčková L, Teichert C. Probing the charge transfer and electron-hole asymmetry in graphene-graphene quantum dot heterostructure. NANOTECHNOLOGY 2022; 33:325704. [PMID: 35504253 DOI: 10.1088/1361-6528/ac6c38] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/03/2022] [Indexed: 06/14/2023]
Abstract
In recent years, graphene-based van der Waals (vdW) heterostructures have come into prominence showcasing interesting charge transfer dynamics which is significant for optoelectronic applications. These novel structures are highly tunable depending on several factors such as the combination of the two-dimensional materials, the number of layers and band alignment exhibiting interfacial charge transfer dynamics. Here, we report on a novel graphene based 0D-2D vdW heterostructure between graphene and amine-functionalized graphene quantum dots (GQD) to investigate the interfacial charge transfer and doping possibilities. Using a combination ofab initiosimulations and Kelvin probe force microscopy (KPFM) measurements, we confirm that the incorporation of functional GQDs leads to a charge transfer induced p-type doping in graphene. A shift of the Dirac point by 0.05 eV with respect to the Fermi level (EF) in the graphene from the heterostructure was deduced from the calculated density of states. KPFM measurements revealed an increment in the surface potential of the GQD in the 0D-2D heterostructure by 29 mV with respect to graphene. Furthermore, we conducted power dependent Raman spectroscopy for both graphene and the heterostructure samples. An optical doping-induced gating effect resulted in a stiffening of theGband for electrons and holes in both samples (graphene and the heterostructure), suggesting a breakdown of the adiabatic Born-Oppenheimer approximation. Moreover, charge imbalance and renormalization of the electron-hole dispersion under the additional influence of the doped functional GQDs is pointing to an asymmetry in conduction and carrier mobility.
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Affiliation(s)
- Rajarshi Roy
- CEITEC, Masaryk University, Kamenice, 62500 Brno, Czech Republic
| | - David Holec
- Department of Materials Science, Montanuniversität Leoben, Franz-Josef-Strasse 18, A-8700 Leoben, Austria
| | - Markus Kratzer
- Institute of Physics, Montanuniversität Leoben, Franz-Josef-Strasse. 18, A-8700 Leoben, Austria
| | - Philipp Muenzer
- Institute of Physics, Montanuniversität Leoben, Franz-Josef-Strasse. 18, A-8700 Leoben, Austria
| | - Preeti Kaushik
- CEITEC, Masaryk University, Kamenice, 62500 Brno, Czech Republic
| | - Lukáš Michal
- CEITEC, Masaryk University, Kamenice, 62500 Brno, Czech Republic
| | - Gundam Sandeep Kumar
- Solar Cells and Photonics Research Laboratory, School of Chemistry, University of Hyderabad, 500 46 Hyderabad, Telangana, India
| | - Lenka Zajíčková
- Department of Condensed Matter Physics, Masaryk University, Kotlářská, 611 37 Brno, Czech Republic
- CEITEC, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic
| | - Christian Teichert
- Institute of Physics, Montanuniversität Leoben, Franz-Josef-Strasse. 18, A-8700 Leoben, Austria
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11
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Spectral Dependence of the Energy Transfer from Photosynthetic Complexes to Monolayer Graphene. Int J Mol Sci 2022; 23:ijms23073493. [PMID: 35408853 PMCID: PMC8998970 DOI: 10.3390/ijms23073493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 11/16/2022] Open
Abstract
Fluorescence excitation spectroscopy at cryogenic temperatures carried out on hybrid assemblies composed of photosynthetic complexes deposited on a monolayer graphene revealed that the efficiency of energy transfer to graphene strongly depended on the excitation wavelength. The efficiency of this energy transfer was greatly enhanced in the blue-green spectral region. We observed clear resonance-like behavior for both a simple light-harvesting antenna containing only two chlorophyll molecules (PCP) and a large photochemically active reaction center associated with the light-harvesting antenna (PSI-LHCI), which pointed towards the general character of this effect.
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12
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Hu W, Pattengale B, Huang J. Zeolitic imidazolate frameworks as intrinsic light harvesting and charge separation materials for photocatalysis. J Chem Phys 2021; 154:240901. [PMID: 34241368 DOI: 10.1063/5.0048720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Zeolitic imidazolate frameworks (ZIFs) are a subclass of metal organic frameworks that have attracted considerable attention in the past years and have found many applications including heterogeneous catalysis due to their highly ordered porous structure, large surface area, and structural flexibility. However, ZIFs are largely utilized as simple hosts or passive media for dispersing other catalytically active species, resembling the roles of zeolites in catalysis. In contrast, our recent findings show that ZIFs not only have broad absorption across the UV-visible and near IR spectral region but also have an exceptionally long-lived excited charge separated state, suggesting that ZIFs may be used as intrinsic light harvesting and photocatalytic materials rather than as inert hosts. This Perspective will focus on the recent progress on the fundamental studies of the intrinsic light absorption, charge separation, and photocatalytic properties of ZIFs and will discuss the outlook for future development.
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Affiliation(s)
- Wenhui Hu
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, USA
| | - Brian Pattengale
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, USA
| | - Jier Huang
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, USA
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Kamińska I, Bohlen J, Yaadav R, Schüler P, Raab M, Schröder T, Zähringer J, Zielonka K, Krause S, Tinnefeld P. Graphene Energy Transfer for Single-Molecule Biophysics, Biosensing, and Super-Resolution Microscopy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2101099. [PMID: 33938054 DOI: 10.1002/adma.202101099] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Graphene is considered a game-changing material, especially for its mechanical and electrical properties. This work exploits that graphene is almost transparent but quenches fluorescence in a range up to ≈40 nm. Graphene as a broadband and unbleachable energy-transfer acceptor without labeling, is used to precisely determine the height of molecules with respect to graphene, to visualize the dynamics of DNA nanostructures, and to determine the orientation of Förster-type resonance energy transfer (FRET) pairs. Using DNA origami nanopositioners, biosensing, single-molecule tracking, and DNA PAINT super-resolution with <3 nm z-resolution are demonstrated. The range of examples shows the potential of graphene-on-glass coverslips as a versatile platform for single-molecule biophysics, biosensing, and super-resolution microscopy.
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Affiliation(s)
- Izabela Kamińska
- Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
| | - Johann Bohlen
- Department of Chemistry and Center for NanoScience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
| | - Renukka Yaadav
- Department of Chemistry and Center for NanoScience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
| | - Patrick Schüler
- Department of Chemistry and Center for NanoScience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
| | - Mario Raab
- Department of Chemistry and Center for NanoScience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
| | - Tim Schröder
- Department of Chemistry and Center for NanoScience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
| | - Jonas Zähringer
- Department of Chemistry and Center for NanoScience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
| | - Karolina Zielonka
- Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
| | - Stefan Krause
- Department of Chemistry and Center for NanoScience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
| | - Philip Tinnefeld
- Department of Chemistry and Center for NanoScience, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, München, Germany
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Xue T, Bongu SR, Huang H, Liang W, Wang Y, Zhang F, Liu Z, Zhang Y, Zhang H, Cui X. Ultrasensitive detection of microRNA using a bismuthene-enabled fluorescence quenching biosensor. Chem Commun (Camb) 2021; 56:7041-7044. [PMID: 32453808 DOI: 10.1039/d0cc01004a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bismuthene, a monoelemental two-dimensional material, has shown promise in the biomedical, electronic, and energy fields due to its high carrier mobility and stability at room temperature. However, its use in biosensing applications is restricted due to its undefined quenching mechanism for dye molecules. Herein, we developed a novel ultrathin bismuthene-based sensing platform for microRNA (miRNA)-specific detection that even discriminates single-base mismatches. The detection limit can reach 60 pM. Excitingly, with the fluorescence quenching mechanism of bismuthene, ground state weakly fluorescent charge transfer is determined via femtosecond pump-probe spectroscopy. This finding provides a proof-of-concept platform to (i) fundamentally explore the quenching mechanism of bismuthene and (ii) sensitively detect miRNA molecules for early cancer.
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Affiliation(s)
- Tianyu Xue
- Center for High Pressure Science, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P. R. China
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15
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Exciton-Photon Interactions in Semiconductor Nanocrystals: Radiative Transitions, Non-Radiative Processes and Environment Effects. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11020497] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
In this review, we discuss several fundamental processes taking place in semiconductor nanocrystals (quantum dots (QDs)) when their electron subsystem interacts with electromagnetic (EM) radiation. The physical phenomena of light emission and EM energy transfer from a QD exciton to other electronic systems such as neighbouring nanocrystals and polarisable 3D (semi-infinite dielectric or metal) and 2D (graphene) materials are considered. In particular, emission decay and FRET rates near a plane interface between two dielectrics or a dielectric and a metal are discussed and their dependence upon relevant parameters is demonstrated. The cases of direct (II–VI) and indirect (silicon) band gap semiconductors are compared. We cover the relevant non-radiative mechanisms such as the Auger process, electron capture on dangling bonds and interaction with phonons. Some further effects, such as multiple exciton generation, are also discussed. The emphasis is on explaining the underlying physics and illustrating it with calculated and experimental results in a comprehensive, tutorial manner.
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Irgen-Gioro S, Yang M, Padgaonkar S, Chang WJ, Zhang Z, Nagasing B, Jiang Y, Weiss EA. Charge and energy transfer in the context of colloidal nanocrystals. ACTA ACUST UNITED AC 2020. [DOI: 10.1063/5.0033263] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Shawn Irgen-Gioro
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
| | - Muwen Yang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
| | - Suyog Padgaonkar
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
| | - Woo Je Chang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
| | - Zhengyi Zhang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
| | - Benjamin Nagasing
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
| | - Yishu Jiang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
| | - Emily A. Weiss
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
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Hu W, Yang F, Pietraszak N, Gu J, Huang J. Distance dependent energy transfer dynamics from a molecular donor to a zeolitic imidazolate framework acceptor. Phys Chem Chem Phys 2020; 22:25445-25449. [PMID: 33166375 DOI: 10.1039/d0cp03995k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zeolitic Imidazolate frameworks (ZIFs) have been demonstrated as promising light harvesting and photocatalytic materials for solar energy conversion. To facilitate their application in photocatalysis, it is essential to develop a fundamental understanding of their light absorption properties and energy transfer dynamics. In this work, we report distance-dependent energy transfer dynamics from a molecular photosensitizer (RuN3) to ZIF-67, where the distance between RuN3 and ZIF-67 is finely tuned by depositing an ultrathin Al2O3 layer on the ZIF-67 surface using an atomic layer deposition (ALD) method. We show that energy transfer time decreases with increasing distance between RuN3 and ZIF-67 and the Förster radius is estimated to be 14.4 nm.
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Affiliation(s)
- Wenhui Hu
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201, USA.
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Zheng W, Zheng B, Jiang Y, Yan C, Chen S, Liu Y, Sun X, Zhu C, Qi Z, Yang T, Huang W, Fan P, Jiang F, Wang X, Zhuang X, Li D, Li Z, Xie W, Ji W, Wang X, Pan A. Probing and Manipulating Carrier Interlayer Diffusion in van der Waals Multilayer by Constructing Type-I Heterostructure. NANO LETTERS 2019; 19:7217-7225. [PMID: 31545057 DOI: 10.1021/acs.nanolett.9b02824] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
van der Waals multilayer heterostructures have drawn increasing attention due to the potential for achieving high-performance photonic and optoelectronic devices. However, the carrier interlayer transportation behavior in multilayer structures, which is essential for determining the device performance, remains unrevealed. Here, we report a general strategy for studying and manipulating the carrier interlayer transportation in van der Waals multilayers by constructing type-I heterostructures, with a desired narrower bandgap monolayer acting as a carrier extraction layer. For heterostructures comprised of multilayer PbI2 and monolayer WS2, we find similar interlayer diffusion coefficients of ∼0.039 and ∼0.032 cm2 s-1 for electrons and holes in the PbI2 multilayer by fitting the time-resolved carrier dynamics based on the diffusion model. Because of the balanced carrier interlayer diffusion and the injection process at the heterointerface, the photoluminescence emission of the bottom WS2 monolayer is greatly enhanced by up to 106-fold at an optimized PbI2 thickness of the heterostructure. Our results provide valuable information on carrier interlayer transportation in van der Waals multilayer structures and pave the way for utilizing carrier behaviors to improve device performances.
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Affiliation(s)
- Weihao Zheng
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Biyuan Zheng
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Ying Jiang
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Changlin Yan
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
- Beijing Key Laboratory of Optoelectronic Functional Material & Micro-Nano Devices, Department of Physics , Renmin University of China , Beijing 100872 , China
| | - Shula Chen
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Ying Liu
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Xinxia Sun
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Chenguang Zhu
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Zhaoyang Qi
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Tiefeng Yang
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Wei Huang
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Peng Fan
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Feng Jiang
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Xiaoxia Wang
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Xiujuan Zhuang
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Dong Li
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Ziwei Li
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
| | - Wei Xie
- Quantum Institute for Light and Atoms, School of Physics and Material Science , East China Normal University , Shanghai , 200241 , China
| | - Wei Ji
- Beijing Key Laboratory of Optoelectronic Functional Material & Micro-Nano Devices, Department of Physics , Renmin University of China , Beijing 100872 , China
| | - Xiao Wang
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
| | - Anlian Pan
- Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, State Key Laboratory of Chemo/Biosensing and Chemometriscs and College of Materials Science and Engineering , Hunan University , Changsha , Hunan 410082 , China
- School of Physics and Electronics , Hunan University , Changsha , Hunan 410082 , China
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19
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Ishikawa YU, Watanabe YU, Sano M. Contrast Mechanisms of Solution-Dispersed Graphene Compounds in Twilight Fluorescence Microscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10334-10340. [PMID: 31294570 DOI: 10.1021/acs.langmuir.9b01349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Twilight fluorescence microscopy is a newly developed technique that is capable of imaging a single-layer graphene compound dispersed in a liquid. A graphene solution mixed with a highly concentrated dye is placed on a glass plate and is irradiated by the excitation beam with an incident angle that has a finite width around the total internal reflection angle. Both the evanescence field and the faint refracted beam decay exponentially as they travel from the glass surface. The dye fluorescence excited by both beams is used as illumination. A simplified theory for dark contrast of graphene compounds is developed based on absorption and Förster resonance energy transfer (FRET), assuming that (1) FRET has a sharp cutoff distance, (2) FRET is independent of the number of layers, and (3) Dexter electron transfer is negligible. The contrast of a reduced graphene oxide multilayer, whose layer heights have been determined by atomic force microscopy, shows good agreement with the simplified theory under various dye concentrations. The FRET cutoff distance is found to be much shorter than one expected for graphene and similar to the distance between two small molecules. This short cutoff distance is the main reason for the assumption to be valid.
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Affiliation(s)
- Yu-Uki Ishikawa
- Department of Organic Materials Science , Yamagata University , 4-3-16 Jyonan , Yonezawa , Yamagata 992-8510 , Japan
| | - Yu-Uto Watanabe
- Department of Organic Materials Science , Yamagata University , 4-3-16 Jyonan , Yonezawa , Yamagata 992-8510 , Japan
| | - Masahito Sano
- Department of Organic Materials Science , Yamagata University , 4-3-16 Jyonan , Yonezawa , Yamagata 992-8510 , Japan
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20
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Kaminska I, Bohlen J, Rocchetti S, Selbach F, Acuna GP, Tinnefeld P. Distance Dependence of Single-Molecule Energy Transfer to Graphene Measured with DNA Origami Nanopositioners. NANO LETTERS 2019; 19:4257-4262. [PMID: 31251640 DOI: 10.1021/acs.nanolett.9b00172] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Despite the thorough investigation of graphene since 2004, altering its surface chemistry and reproducible functionalization remain challenging. This hinders fabrication of more complex hybrid materials with controlled architectures, and as a consequence the development of sensitive and reliable sensors and biological assays. In this contribution, we introduce DNA origami structures as nanopositioners for placing single dye molecules at controlled distances from graphene. The measurements of fluorescence intensity and lifetime of single emitters carried out for distances ranging from 3 to 58 nm confirmed the d-4 dependence of the excitation energy transfer to graphene. Moreover, we determined the characteristic distance for 50% efficiency of the energy transfer from single dyes to graphene to be 17.7 nm. Using pyrene molecules as a glue to immobilize DNA origami nanostructures of various shape on graphene opens new possibilities to develop graphene-based biophysics and biosensing.
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Affiliation(s)
- I Kaminska
- Institute of Physical Chemistry of the Polish Academy of Sciences , 01-224 Warsaw , Poland
| | - J Bohlen
- Department of Chemistry and Center for NanoScience , Ludwig-Maximilians-Universität München , 80539 München , Germany
| | - S Rocchetti
- Department of Chemistry and Center for NanoScience , Ludwig-Maximilians-Universität München , 80539 München , Germany
| | - F Selbach
- Department of Chemistry and Center for NanoScience , Ludwig-Maximilians-Universität München , 80539 München , Germany
| | - G P Acuna
- Department of Physics , Université de Fribourg , Ch. du Musée 3 , CH-1700 Fribourg , Switzerland
| | - P Tinnefeld
- Department of Chemistry and Center for NanoScience , Ludwig-Maximilians-Universität München , 80539 München , Germany
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21
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Zhou H, Qin C, Chen R, Zhou W, Zhang G, Gao Y, Xiao L, Jia S. Accurate Investigation on the Fluorescence Resonance Energy Transfer between Single Organic Molecules and Monolayer WSe 2 by Quantum Coherent Modulation-Enhanced Single-Molecule Imaging Microscopy. J Phys Chem Lett 2019; 10:2849-2856. [PMID: 31084008 DOI: 10.1021/acs.jpclett.9b00854] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hybrid organic two-dimensional (2D) materials heterostructures are attracting tremendous attention for optoelectronic applications due to their low-cost processing and complementary advantages. However, accurate understanding of the fundamental physics on the interface of the hybrid heterostructures at the single-molecule level remains largely unexplored. Here, we investigated the fluorescence resonance energy transfer (FRET) between the single organic molecules and monolayer WSe2 through a newly developed single molecule microscopy technique, quantum coherent modulation-enhanced single-molecule imaging microscopy (QCME-SMIM). It is shown that the extremely weak energy transfer signal was successfully extracted from the huge fluorescence background, originating from the emission of monolayer WSe2. The observed energy transfer efficiency is in agreement with a d-4 distance dependence, with a Förster radius of ∼6 nm for the hybrid structures. Our work not only provides valuable insight into the FRET process at the single-molecule level across such hybrid organic-2D interfaces, but also demonstrates the feasibility of the newly developed technique for investigating the fundamental physics of electron transfer kinetics.
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Affiliation(s)
- Haitao Zhou
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy , Shanxi University , Taiyuan , Shanxi 030006 , China
- Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan , Shanxi 030006 , China
| | - Chengbing Qin
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy , Shanxi University , Taiyuan , Shanxi 030006 , China
- Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan , Shanxi 030006 , China
| | - Ruiyun Chen
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy , Shanxi University , Taiyuan , Shanxi 030006 , China
- Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan , Shanxi 030006 , China
| | - Wenjin Zhou
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy , Shanxi University , Taiyuan , Shanxi 030006 , China
- Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan , Shanxi 030006 , China
| | - Guofeng Zhang
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy , Shanxi University , Taiyuan , Shanxi 030006 , China
- Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan , Shanxi 030006 , China
| | - Yan Gao
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy , Shanxi University , Taiyuan , Shanxi 030006 , China
- Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan , Shanxi 030006 , China
| | - Liantuan Xiao
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy , Shanxi University , Taiyuan , Shanxi 030006 , China
- Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan , Shanxi 030006 , China
| | - Suotang Jia
- State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy , Shanxi University , Taiyuan , Shanxi 030006 , China
- Collaborative Innovation Center of Extreme Optics , Shanxi University , Taiyuan , Shanxi 030006 , China
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Tan KH, Sattari S, Beyranvand S, Faghani A, Ludwig K, Schwibbert K, Böttcher C, Haag R, Adeli M. Thermoresponsive Amphiphilic Functionalization of Thermally Reduced Graphene Oxide to Study Graphene/Bacteria Hydrophobic Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4736-4746. [PMID: 30840824 DOI: 10.1021/acs.langmuir.8b03660] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
An understanding of the interactions of 2D nanomaterials with pathogens is of vital importance to developing and controlling their antimicrobial properties. In this work, the interaction of functionalized graphene with tunable hydrophobicity and bacteria is investigated. Poly(ethylene glycol)- block-(poly- N-isopropylacrylamide) copolymer (PEG- b-PNIPAM) with the triazine joint point was attached to the graphene surface by a nitrene [2 + 1] cycloaddition reaction. By thermally switching between hydrophobic and hydrophilic states, functionalized graphene sheets were able to bind to bacteria. Bacteria were eventually disrupted when the functionality was switched to the hydrophobic state. On the basis of measuring the different microscopy methods and a live/dead viability assay, it was found that Escherichia coli ( E. coli) bacteria are more susceptible to hydrophobic interactions than B. cereus bacteria, under the same conditions. Our investigations confirm that hydrophobic interaction is one of the main driving forces at the presented graphene/bacteria interfaces and promotes the antibacterial activity of graphene derivatives significantly.
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Affiliation(s)
- Kok H Tan
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | - Shabnam Sattari
- Department of Chemistry, Faculty of Science , Lorestan University , Khorram Abad , Iran
| | - Siamak Beyranvand
- Department of Chemistry, Faculty of Science , Lorestan University , Khorram Abad , Iran
| | - Abbas Faghani
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | - Kai Ludwig
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMol, Institut für Chemie und Biochemie , Freie Universität Berlin , Fabeckstr. 36a , 14195 Berlin , Germany
| | - Karin Schwibbert
- Department of Materials and the Environment , Division of Biodeterioration and Reference Organisms of Bundesanstalt für Materialforschung und -Prüfung , Unter den Eichen 87 , 12205 Berlin , Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie and Core Facility BioSupraMol, Institut für Chemie und Biochemie , Freie Universität Berlin , Fabeckstr. 36a , 14195 Berlin , Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | - Mohsen Adeli
- Institut für Chemie und Biochemie , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
- Department of Chemistry, Faculty of Science , Lorestan University , Khorram Abad , Iran
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23
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Ho XL, Wang YH, Chen PJ, Woon WY, White JD. MEH-PPV photophysics: insights from the influence of a nearby 2D quencher. NANOTECHNOLOGY 2019; 30:065702. [PMID: 30524048 DOI: 10.1088/1361-6528/aaf148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The effect of 2D quenching on single chain photophysics was investigated by spin coating 13 nm thick films of polystyrene lightly doped with MEH-PPV onto CVD grown graphene and observing the changes in several photoluminescent (PL) observables. With 99% of the PL quenched, we found a 60% drop in the PL lifetime, along with a significant blue-shift of the PL emission due to the preferential quenching of emission at longer wavelengths. During photo-bleaching, the blue spectral shift observed for isolated polymers was eliminated in the presence of the quencher up until 70% of the polymer was photo-bleached. Results were interpreted using a static disorder induced conjugation length distribution model. The quencher, by opening up a new non-radiative decay channel, ensures that excitons do not have sufficient time to migrate to nearby lower energy chromophores. The reduction of energy transfer into the lowest-energy chromophores thus reduces their rate of photo-bleaching. Finally, the difference between the quenched and non-quenched spectra allows the rate of energy transfer along the polymer backbone to be estimated at ∼2 ns-1.
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Affiliation(s)
- Xuan Long Ho
- Dept of Electrical Engineering, Yuan Ze University, Chung-Li, Taoyuan City, Taiwan
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24
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Attanzio A, Rosillo-Lopez M, Zampetti A, Ierides I, Cacialli F, Salzmann CG, Palma M. Assembly of graphene nanoflake-quantum dot hybrids in aqueous solution and their performance in light-harvesting applications. NANOSCALE 2018; 10:19678-19683. [PMID: 30328464 DOI: 10.1039/c8nr06746e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Graphene nanoflakes and CdSe/ZnS quantum dots were covalently linked in environmentally friendly aqueous solution. Raman spectroscopy and photoluminescence studies, both in solution and on surfaces at the single nanohybrid level, showed evidence of charge transfer between the two nanostructures. The nanohybrids were further incorporated into solar cell devices, demonstrating their potential as light harvesting assemblies.
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Affiliation(s)
- Antonio Attanzio
- School of Biological and Chemical Sciences, Materials Research Institute, Queen Mary University of London, Mile End Road, London E14NS, UK.
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Freeley M, Attanzio A, Cecconello A, Amoroso G, Clement P, Fernandez G, Gesuele F, Palma M. Tuning the Coupling in Single-Molecule Heterostructures: DNA-Programmed and Reconfigurable Carbon Nanotube-Based Nanohybrids. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800596. [PMID: 30356926 PMCID: PMC6193148 DOI: 10.1002/advs.201800596] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/27/2018] [Indexed: 06/08/2023]
Abstract
Herein a strategy is presented for the assembly of both static and stimuli-responsive single-molecule heterostructures, where the distance and electronic coupling between an individual functional nanomoiety and a carbon nanostructure are tuned via the use of DNA linkers. As proof of concept, the formation of 1:1 nanohybrids is controlled, where single quantum dots (QDs) are tethered to the ends of individual carbon nanotubes (CNTs) in solution with DNA interconnects of different lengths. Photoluminescence investigations-both in solution and at the single-hybrid level-demonstrate the electronic coupling between the two nanostructures; notably this is observed to progressively scale, with charge transfer becoming the dominant process as the linkers length is reduced. Additionally, stimuli-responsive CNT-QD nanohybrids are assembled, where the distance and hence the electronic coupling between an individual CNT and a single QD are dynamically modulated via the addition and removal of potassium (K+) cations; the system is further found to be sensitive to K+ concentrations from 1 pM to 25 × 10-3 m. The level of control demonstrated here in modulating the electronic coupling of reconfigurable single-molecule heterostructures, comprising an individual functional nanomoiety and a carbon nanoelectrode, is of importance for the development of tunable molecular optoelectronic systems and devices.
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Affiliation(s)
- Mark Freeley
- School of Biological and Chemical SciencesMaterials Research Instituteand Institute of BioengineeringQueen Mary University of LondonMile End RoadLondonE1 4NSUK
| | - Antonio Attanzio
- School of Biological and Chemical SciencesMaterials Research Instituteand Institute of BioengineeringQueen Mary University of LondonMile End RoadLondonE1 4NSUK
| | - Alessandro Cecconello
- School of Biological and Chemical SciencesMaterials Research Instituteand Institute of BioengineeringQueen Mary University of LondonMile End RoadLondonE1 4NSUK
| | - Giuseppe Amoroso
- School of Biological and Chemical SciencesMaterials Research Instituteand Institute of BioengineeringQueen Mary University of LondonMile End RoadLondonE1 4NSUK
- Organisch‐Chemisches InstitutWestfälische Wilhelms‐Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Pierrick Clement
- School of Biological and Chemical SciencesMaterials Research Instituteand Institute of BioengineeringQueen Mary University of LondonMile End RoadLondonE1 4NSUK
| | - Gustavo Fernandez
- Organisch‐Chemisches InstitutWestfälische Wilhelms‐Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Felice Gesuele
- Department of PhysicsUniversity of Naples “Federico II”Via Cintia, 26 Ed. 680126NapoliItaly
| | - Matteo Palma
- School of Biological and Chemical SciencesMaterials Research Instituteand Institute of BioengineeringQueen Mary University of LondonMile End RoadLondonE1 4NSUK
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26
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Sulowska K, Wiwatowski K, Szustakiewicz P, Grzelak J, Lewandowski W, Mackowski S. Energy Transfer from Photosystem I to Thermally Reduced Graphene Oxide. MATERIALS 2018; 11:ma11091567. [PMID: 30200240 PMCID: PMC6164758 DOI: 10.3390/ma11091567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 08/21/2018] [Accepted: 08/22/2018] [Indexed: 12/14/2022]
Abstract
The energy transfer from photosynthetic complex photosystem I to thermally reduced graphene oxide was studied using fluorescence microscopy and spectroscopy, and compared against the structure in which monolayer epitaxial graphene was used as the energy acceptor. We find that the properties of reduced graphene oxide (rGO) as an energy acceptor is qualitatively similar to that of epitaxial graphene. Fluorescence quenching, which in addition to shortening of fluorescence decay, is a signature of energy transfer varies across rGO substrates and correlates with the transmission pattern. We conclude that the efficiency of the energy transfer depends on the number of rGO layers in the flakes and decreases with this number. Furthermore, careful analysis of fluorescence imaging data confirms that the energy transfer efficiency dependence on the excitation wavelength, also varies with the number of rGO flakes.
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Affiliation(s)
- Karolina Sulowska
- Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland.
| | - Kamil Wiwatowski
- Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland.
| | - Piotr Szustakiewicz
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
| | - Justyna Grzelak
- Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland.
| | - Wiktor Lewandowski
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
| | - Sebastian Mackowski
- Institute of Physics, Faculty of Physics, Astronomy, and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland.
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27
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Taghipour N, Hernandez Martinez PL, Ozden A, Olutas M, Dede D, Gungor K, Erdem O, Perkgoz NK, Demir HV. Near-Unity Efficiency Energy Transfer from Colloidal Semiconductor Quantum Wells of CdSe/CdS Nanoplatelets to a Monolayer of MoS 2. ACS NANO 2018; 12:8547-8554. [PMID: 29965729 DOI: 10.1021/acsnano.8b04119] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A hybrid structure of the quasi-2D colloidal semiconductor quantum wells assembled with a single layer of 2D transition metal dichalcogenides offers the possibility of highly strong dipole-to-dipole coupling, which may enable extraordinary levels of efficiency in Förster resonance energy transfer (FRET). Here, we show ultrahigh-efficiency FRET from the ensemble thin films of CdSe/CdS nanoplatelets (NPLs) to a MoS2 monolayer. From time-resolved fluorescence spectroscopy, we observed the suppression of the photoluminescence of the NPLs corresponding to the total rate of energy transfer from ∼0.4 to 268 ns-1. Using an Al2O3 separating layer between CdSe/CdS and MoS2 with thickness tuned from 5 to 1 nm, we found that FRET takes place 7- to 88-fold faster than the Auger recombination in CdSe-based NPLs. Our measurements reveal that the FRET rate scales down with d-2 for the donor of CdSe/CdS NPLs and the acceptor of the MoS2 monolayer, d being the center-to-center distance between this FRET pair. A full electromagnetic model explains the behavior of this d-2 system. This scaling arises from the delocalization of the dipole fields in the ensemble thin film of the NPLs and full distribution of the electric field across the layer of MoS2. This d-2 dependency results in an extraordinarily long Förster radius of ∼33 nm.
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Affiliation(s)
- Nima Taghipour
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology , Bilkent University , Ankara 06800 , Turkey
| | - Pedro Ludwig Hernandez Martinez
- 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, School of Materials Science and Nanotechnology , Nanyang Technological University , Singapore 639798 , Singapore
| | - Ayberk Ozden
- Department of Materials Science and Engineering, Faculty of Engineering , Anadolu University , 26555 Eskisehir , Turkey
| | - Murat Olutas
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology , Bilkent University , Ankara 06800 , Turkey
- Department of Physics , Abant Izzet Baysal University , Bolu 14030 , Turkey
| | - Didem Dede
- Department of Electrical and Electronics Engineering, Department of Physics, UNAM-Institute of Materials Science and Nanotechnology , Bilkent University , Ankara 06800 , Turkey
| | - Kivanc Gungor
- 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
| | - Nihan Kosku Perkgoz
- Department of Electrical and Electronics Engineering, Faculty of Engineering , Anadolu University , 26555 Eskisehir , 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! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Materials Sciences, School of Materials Science and Nanotechnology , Nanyang Technological University , Singapore 639798 , Singapore
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28
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Gulbahar B, Memisoglu G. CSSTag: Optical Nanoscale Radar and Particle Tracking for In-Body and Microfluidic Systems With Vibrating Graphene and Resonance Energy Transfer. IEEE Trans Nanobioscience 2018; 16:905-916. [PMID: 29364134 DOI: 10.1109/tnb.2017.2785226] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Biological particle tracking systems monitor cellular processes or particle behaviors with the great accuracy. The emissions of fluorescent molecules or direct images of particles are captured with cameras or photodetectors. The current imaging systems have challenges in detection, collection, and analysis of imaging data, penetration depth, and complicated set-ups. In this paper, a signaling-based nanoscale acousto-optic radar and microfluidic multiple particle tracking (MPT) system is proposed based on the theoretical design providing nanoscale optical modulator with vibrating Förster resonance energy transfer and vibrating cadmium selenide/zinc sulfide quantum dots (QDs) on graphene resonators. The modulator combines significant advantages of graphene membranes having wideband resonance frequencies with QDs having broad absorption spectrum and tunable properties. The solution denoted by chirp spread spectrum(CSS) Tag utilizes classical radar target tracking approaches in nanoscale environments based on the capability to generate CSS sequences identifying different bio-particles. Monte Carlo simulations show significant performance for MPT with a modulator of dimension and several picograms of weight, the signal-to-noise ratio in the range from -7 to 10 dB, simple light emitting diode sources with power less than 4 W/cm2 and high speed tracking for microfluidic environments.
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29
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Liu H, Moronta D, Li L, Yue S, Wong SS. Synthesis, properties, and formation mechanism of Mn-doped Zn2SiO4 nanowires and associated heterostructures. Phys Chem Chem Phys 2018; 20:10086-10099. [DOI: 10.1039/c8cp00151k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Charge transfer and energy transfer phenomena were observed and analyzed in heterostructure systems composed of CdSe QDs immobilized onto Mn-doped Zn2SiO4 nanowire host materials.
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Affiliation(s)
- Haiqing Liu
- Department of Chemistry
- State University of New York at Stony Brook
- Stony Brook
- USA
| | - Dominic Moronta
- Department of Chemistry
- State University of New York at Stony Brook
- Stony Brook
- USA
| | - Luyao Li
- Department of Chemistry
- State University of New York at Stony Brook
- Stony Brook
- USA
| | - Shiyu Yue
- Department of Chemistry
- State University of New York at Stony Brook
- Stony Brook
- USA
| | - Stanislaus S. Wong
- Department of Chemistry
- State University of New York at Stony Brook
- Stony Brook
- USA
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30
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Huang H, Li J, Yi Y, Wang J, Kang Y, Chu PK, Ong HC, Yu XF. In situ growth of all-inorganic perovskite nanocrystals on black phosphorus nanosheets. Chem Commun (Camb) 2018; 54:2365-2368. [DOI: 10.1039/c8cc00029h] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We demonstrate a novel low-dimensional nanohybrid structure consisting of all-inorganic perovskite nanocrystals growing in situ on two-dimensional black phosphorus nanosheets.
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Affiliation(s)
- Hao Huang
- Center for Biomedical Materials and Interfaces, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
- Shenzhen 518055
- People's Republic of China
| | - Jia Li
- Center for Biomedical Materials and Interfaces, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
- Shenzhen 518055
- People's Republic of China
| | - Ya Yi
- Center for Biomedical Materials and Interfaces, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
- Shenzhen 518055
- People's Republic of China
| | - Jiahong Wang
- Center for Biomedical Materials and Interfaces, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
- Shenzhen 518055
- People's Republic of China
| | - Yihong Kang
- Center for Biomedical Materials and Interfaces, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
- Shenzhen 518055
- People's Republic of China
| | - Paul K. Chu
- Department of Physics and Department of Materials Science and Engineering, City University of Hong Kong
- Kowloon
- China
| | - H. C. Ong
- Department of Physics, The Chinese University of Hong Kong
- Shatin
- China
| | - Xue-Feng Yu
- Center for Biomedical Materials and Interfaces, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
- Shenzhen 518055
- People's Republic of China
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31
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32
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Chakraborty C, Goodfellow KM, Dhara S, Yoshimura A, Meunier V, Vamivakas AN. Quantum-Confined Stark Effect of Individual Defects in a van der Waals Heterostructure. NANO LETTERS 2017; 17:2253-2258. [PMID: 28267348 DOI: 10.1021/acs.nanolett.6b04889] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The optical properties of atomically thin semiconductor materials have been widely studied because of the isolation of monolayer transition metal dichalcogenides (TMDCs). They have rich optoelectronic properties owing to their large direct bandgap, the interplay between the spin and the valley degree of freedom of charge carriers, and the recently discovered localized excitonic states giving rise to single photon emission. In this Letter, we study the quantum-confined Stark effect of these localized emitters present near the edges of monolayer tungsten diselenide (WSe2). By carefully designing sequences of metallic (graphene), insulating (hexagonal boron nitride), and semiconducting (WSe2) two-dimensional materials, we fabricate a van der Waals heterostructure field effect device with WSe2 hosting quantum emitters that is responsive to external static electric field applied to the device. A very efficient spectral tunability up to 21 meV is demonstrated. Further, evaluation of the spectral shift in the photoluminescence signal as a function of the applied voltage enables us to extract the polarizability volume (up to 2000 Å3) as well as information on the dipole moment of an individual emitter. The Stark shift can be further modulated on application of an external magnetic field, where we observe a flip in the sign of dipole moment possibly due to rearrangement of the position of electron and hole wave functions within the emitter.
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Affiliation(s)
| | | | | | - Anthony Yoshimura
- Department of Physics, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
| | - Vincent Meunier
- Department of Physics, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
| | - A Nick Vamivakas
- Department of Physics, University of Rochester , Rochester, New York 14627, United States
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33
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Liu BT, Wu KH, Lee RH. Enhanced Optoelectronic Conversion Efficiency of CdSe/ZnS Quantum Dot/Graphene/Silver Nanowire Hybrid Thin Films. NANOSCALE RESEARCH LETTERS 2016; 11:388. [PMID: 27599719 PMCID: PMC5013003 DOI: 10.1186/s11671-016-1606-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/31/2016] [Indexed: 05/15/2023]
Abstract
In this study, we prepared the reduced graphene oxide (rGO)-CdSe/ZnS quantum dots (QDs) hybrid films on a three-layer scaffold that the QD layer was sandwiched between the two rGO layers. The photocurrent was induced by virtue of the facts that the rGO quenched the photoluminescence of QDs and transferred the excited energy. The quenching mechanism was attributed to the surface energy transfer, supported in our experimental results. We found that the optoelectronic conversion efficiency of the hybrid films can be significantly improved by incorporating the silver nanowires (AgNWs) into the QD layer. Upon increasing AgNW content, the photocurrent density increased from 22.1 to 80.3 μA cm(-2), reaching a near 3.6-fold enhancement compared to the pristine rGO-QD hybrid films. According to the analyses of photoluminescence spectra, shape effect, and electrochemical impedance spectra, the enhancement on the optoelectronic conversion efficiency arise mainly from the strong quenching ability of silver and the rapid electron transfer of AgNWs.
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Affiliation(s)
- Bo-Tau Liu
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, 123 Univ. Rd., Sec. 3, Douliou, Yunlin, 64002 Taiwan
| | - Kuan-Han Wu
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, 123 Univ. Rd., Sec. 3, Douliou, Yunlin, 64002 Taiwan
| | - Rong-Ho Lee
- Department of Chemical Engineering, National Chung Hsing University, Taichung, 40227 Taiwan, Republic of China
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34
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Oh E, Huston AL, Shabaev A, Efros A, Currie M, Susumu K, Bussmann K, Goswami R, Fatemi FK, Medintz IL. Energy Transfer Sensitization of Luminescent Gold Nanoclusters: More than Just the Classical Förster Mechanism. Sci Rep 2016; 6:35538. [PMID: 27774984 PMCID: PMC5075882 DOI: 10.1038/srep35538] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/28/2016] [Indexed: 12/19/2022] Open
Abstract
Luminescent gold nanocrystals (AuNCs) are a recently-developed material with potential optic, electronic and biological applications. They also demonstrate energy transfer (ET) acceptor/sensitization properties which have been ascribed to Förster resonance energy transfer (FRET) and, to a lesser extent, nanosurface energy transfer (NSET). Here, we investigate AuNC acceptor interactions with three structurally/functionally-distinct donor classes including organic dyes, metal chelates and semiconductor quantum dots (QDs). Donor quenching was observed for every donor-acceptor pair although AuNC sensitization was only observed from metal-chelates and QDs. FRET theory dramatically underestimated the observed energy transfer while NSET-based damping models provided better fits but could not reproduce the experimental data. We consider additional factors including AuNC magnetic dipoles, density of excited-states, dephasing time, and enhanced intersystem crossing that can also influence ET. Cumulatively, data suggests that AuNC sensitization is not by classical FRET or NSET and we provide a simplified distance-independent ET model to fit such experimental data.
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Affiliation(s)
- Eunkeu Oh
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
- Sotera Defense Solutions, Inc. Columbia, MD 21046, USA
| | - Alan L. Huston
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Andrew Shabaev
- Center for Computational Material Science Code 6390, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Alexander Efros
- Center for Computational Material Science Code 6390, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Marc Currie
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Kimihiro Susumu
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
- Sotera Defense Solutions, Inc. Columbia, MD 21046, USA
| | - Konrad Bussmann
- Materials and Sensors Branch Code 6361, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Ramasis Goswami
- Multifunctional Materials Code 6351, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Fredrik K. Fatemi
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
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35
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Hildebrandt N, Spillmann CM, Algar WR, Pons T, Stewart MH, Oh E, Susumu K, Díaz SA, Delehanty JB, Medintz IL. Energy Transfer with Semiconductor Quantum Dot Bioconjugates: A Versatile Platform for Biosensing, Energy Harvesting, and Other Developing Applications. Chem Rev 2016; 117:536-711. [DOI: 10.1021/acs.chemrev.6b00030] [Citation(s) in RCA: 457] [Impact Index Per Article: 57.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Niko Hildebrandt
- NanoBioPhotonics
Institut d’Electronique Fondamentale (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, 91400 Orsay, France
| | | | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Thomas Pons
- LPEM;
ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC, F-75005 Paris, France
| | | | - Eunkeu Oh
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Kimihiro Susumu
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Sebastian A. Díaz
- American Society for Engineering Education, Washington, DC 20036, United States
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36
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Pierucci D, Henck H, Naylor CH, Sediri H, Lhuillier E, Balan A, Rault JE, Dappe YJ, Bertran F, Fèvre PL, Johnson ATC, Ouerghi A. Large area molybdenum disulphide- epitaxial graphene vertical Van der Waals heterostructures. Sci Rep 2016; 6:26656. [PMID: 27246929 PMCID: PMC4894673 DOI: 10.1038/srep26656] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 05/03/2016] [Indexed: 11/09/2022] Open
Abstract
Two-dimensional layered transition metal dichalcogenides (TMDCs) show great potential for optoelectronic devices due to their electronic and optical properties. A metal-semiconductor interface, as epitaxial graphene - molybdenum disulfide (MoS2), is of great interest from the standpoint of fundamental science, as it constitutes an outstanding platform to investigate the interlayer interaction in van der Waals heterostructures. Here, we study large area MoS2-graphene-heterostructures formed by direct transfer of chemical-vapor deposited MoS2 layer onto epitaxial graphene/SiC. We show that via a direct transfer, which minimizes interface contamination, we can obtain high quality and homogeneous van der Waals heterostructures. Angle-resolved photoemission spectroscopy (ARPES) measurements combined with Density Functional Theory (DFT) calculations show that the transition from indirect to direct bandgap in monolayer MoS2 is maintained in these heterostructures due to the weak van der Waals interaction with epitaxial graphene. A downshift of the Raman 2D band of the graphene, an up shift of the A1g peak of MoS2 and a significant photoluminescence quenching are observed for both monolayer and bilayer MoS2 as a result of charge transfer from MoS2 to epitaxial graphene under illumination. Our work provides a possible route to modify the thin film TDMCs photoluminescence properties via substrate engineering for future device design.
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Affiliation(s)
- Debora Pierucci
- Laboratoire de Photonique et de Nanostructures (CNRS- LPN),
Route de Nozay, 91460
Marcoussis, France
| | - Hugo Henck
- Laboratoire de Photonique et de Nanostructures (CNRS- LPN),
Route de Nozay, 91460
Marcoussis, France
| | - Carl H. Naylor
- Department of Physics and Astronomy, University of
Pennsylvania, 209S 33rd Street, Philadelphia,
Pennsylvania
19104, USA
| | - Haikel Sediri
- Laboratoire de Photonique et de Nanostructures (CNRS- LPN),
Route de Nozay, 91460
Marcoussis, France
| | - Emmanuel Lhuillier
- Institut des Nanosciences de Paris, UPMC, 4 place Jussieu,
boîte courrier 840, 75252
Paris cedex 05, France
| | - Adrian Balan
- Department of Physics and Astronomy, University of
Pennsylvania, 209S 33rd Street, Philadelphia,
Pennsylvania
19104, USA
- Laboratoire d’Innovation en Chimie des Surfaces et
Nanosciences, DSM/NIMBE/LICSEN (CNRS UMR 3685), CEA Saclay,
91191
Gif-sur-Yvette Cedex, France
| | - Julien E. Rault
- Synchrotron-SOLEIL, Saint-Aubin, BP48,
F91192 Gif sur Yvette Cedex, France
| | - Yannick J. Dappe
- SPEC, CEA, CNRS, Universite Paris-Saclay, CEA Saclay,
91191 Gif-sur-Yvette Cedex, France
| | - François Bertran
- Synchrotron-SOLEIL, Saint-Aubin, BP48,
F91192 Gif sur Yvette Cedex, France
| | - Patrick Le Fèvre
- Synchrotron-SOLEIL, Saint-Aubin, BP48,
F91192 Gif sur Yvette Cedex, France
| | - A. T. Charlie Johnson
- Department of Physics and Astronomy, University of
Pennsylvania, 209S 33rd Street, Philadelphia,
Pennsylvania
19104, USA
| | - Abdelkarim Ouerghi
- Laboratoire de Photonique et de Nanostructures (CNRS- LPN),
Route de Nozay, 91460
Marcoussis, France
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37
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Engineering the Charge Transfer in all 2D Graphene-Nanoplatelets Heterostructure Photodetectors. Sci Rep 2016; 6:24909. [PMID: 27143413 PMCID: PMC4855231 DOI: 10.1038/srep24909] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 04/06/2016] [Indexed: 11/09/2022] Open
Abstract
Two dimensional layered (i.e. van der Waals) heterostructures open up great prospects, especially in photodetector applications. In this context, the control of the charge transfer between the constituting layers is of crucial importance. Compared to bulk or 0D system, 2D materials are characterized by a large exciton binding energy (0.1–1 eV) which considerably affects the magnitude of the charge transfer. Here we investigate a model system made from colloidal 2D CdSe nanoplatelets and epitaxial graphene in a phototransistor configuration. We demonstrate that using a heterostructured layered material, we can tune the magnitude and the direction (i.e. electron or hole) of the charge transfer. We further evidence that graphene functionalization by nanocrystals only leads to a limited change in the magnitude of the 1/f noise. These results draw some new directions to design van der Waals heterostructures with enhanced optoelectronic properties.
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38
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Raja A, Montoya Castillo A, Zultak J, Zhang XX, Ye Z, Roquelet C, Chenet DA, van der Zande AM, Huang P, Jockusch S, Hone J, Reichman DR, Brus LE, Heinz TF. Energy Transfer from Quantum Dots to Graphene and MoS2: The Role of Absorption and Screening in Two-Dimensional Materials. NANO LETTERS 2016; 16:2328-33. [PMID: 26928675 DOI: 10.1021/acs.nanolett.5b05012] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We report efficient nonradiative energy transfer (NRET) from core-shell, semiconducting quantum dots to adjacent two-dimensional sheets of graphene and MoS2 of single- and few-layer thickness. We observe quenching of the photoluminescence (PL) from individual quantum dots and enhanced PL decay rates in time-resolved PL, corresponding to energy transfer rates of 1-10 ns(-1). Our measurements reveal contrasting trends in the NRET rate from the quantum dot to the van der Waals material as a function of thickness. The rate increases significantly with increasing layer thickness of graphene, but decreases with increasing thickness of MoS2 layers. A classical electromagnetic theory accounts for both the trends and absolute rates observed for the NRET. The countervailing trends arise from the competition between screening and absorption of the electric field of the quantum dot dipole inside the acceptor layers. We extend our analysis to predict the type of NRET behavior for the near-field coupling of a chromophore to a range of semiconducting and metallic thin film materials.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Tony F Heinz
- Departments of Applied Physics and Photon Science, Stanford University , Stanford, California 94305, United States
- SLAC National Accelerator Laboratory , Menlo Park, California 94025, United States
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Rabouw FT, van der Bok JC, Spinicelli P, Mahler B, Nasilowski M, Pedetti S, Dubertret B, Vanmaekelbergh D. Temporary Charge Carrier Separation Dominates the Photoluminescence Decay Dynamics of Colloidal CdSe Nanoplatelets. NANO LETTERS 2016; 16:2047-53. [PMID: 26863992 DOI: 10.1021/acs.nanolett.6b00053] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- Freddy T. Rabouw
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Princetonplein 1, 3584 CC Utrecht, The Netherlands
| | - Johanna C. van der Bok
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Princetonplein 1, 3584 CC Utrecht, The Netherlands
| | - Piernicola Spinicelli
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Benoît Mahler
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Michel Nasilowski
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Silvia Pedetti
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Benoît Dubertret
- Laboratoire de Physique et d’Etude
des Matériaux (LPEM), PSL Research University, ESPCI-ParisTech,
10 rue Vauquelin, F-75231 Paris Cedex 5, France
| | - Daniël Vanmaekelbergh
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Princetonplein 1, 3584 CC Utrecht, The Netherlands
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Reserbat-Plantey A, Schädler KG, Gaudreau L, Navickaite G, Güttinger J, Chang D, Toninelli C, Bachtold A, Koppens FHL. Electromechanical control of nitrogen-vacancy defect emission using graphene NEMS. Nat Commun 2016; 7:10218. [PMID: 26742541 PMCID: PMC4729859 DOI: 10.1038/ncomms10218] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 11/12/2015] [Indexed: 12/12/2022] Open
Abstract
Despite recent progress in nano-optomechanics, active control of optical fields at the nanoscale has not been achieved with an on-chip nano-electromechanical system (NEMS) thus far. Here we present a new type of hybrid system, consisting of an on-chip graphene NEMS suspended a few tens of nanometres above nitrogen-vacancy centres (NVCs), which are stable single-photon emitters embedded in nanodiamonds. Electromechanical control of the photons emitted by the NVC is provided by electrostatic tuning of the graphene NEMS position, which is transduced to a modulation of NVC emission intensity. The optomechanical coupling between the graphene displacement and the NVC emission is based on near-field dipole–dipole interaction. This class of optomechanical coupling increases strongly for smaller distances, making it suitable for nanoscale devices. These achievements hold promise for selective control of emitter arrays on-chip, optical spectroscopy of individual nano-objects, integrated optomechanical information processing and open new avenues towards quantum optomechanics. Active control of optical fields at the nanoscale is difficult to achieve. Here, the authors fabricate an on-chip graphene NEMS suspended a few tens of nanometres above nitrogen vacancy centres and demonstrate electromechanical control of the photons emitted by electrostatic tuning of the graphene NEMS position.
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Affiliation(s)
- Antoine Reserbat-Plantey
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Kevin G Schädler
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Louis Gaudreau
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Gabriele Navickaite
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Johannes Güttinger
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Darrick Chang
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Costanza Toninelli
- CNR-INO, Istituto Nazionale di Ottica, LENS Via Carrara 1, Sesto Fiorentino (FI) 50019, Italy
| | - Adrian Bachtold
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain
| | - Frank H L Koppens
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.,ICREA - Institució Catalana de Recerça i Estudis Avancats, Barcelona, Spain
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41
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Kaminska I, Wiwatowski K, Mackowski S. Efficiency of energy transfer decreases with the number of graphene layers. RSC Adv 2016. [DOI: 10.1039/c6ra20266g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Spectrally- and time-resolved fluorescence imaging demonstrates strong decrease of the energy transfer efficiency with the number of graphene layers.
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Affiliation(s)
- Izabela Kaminska
- Optics of Hybrid Nanostructures Group
- Institute of Physics
- Faculty of Physics, Astronomy and Informatics
- Nicolaus Copernicus University
- 87-100 Torun
| | - Kamil Wiwatowski
- Optics of Hybrid Nanostructures Group
- Institute of Physics
- Faculty of Physics, Astronomy and Informatics
- Nicolaus Copernicus University
- 87-100 Torun
| | - Sebastian Mackowski
- Optics of Hybrid Nanostructures Group
- Institute of Physics
- Faculty of Physics, Astronomy and Informatics
- Nicolaus Copernicus University
- 87-100 Torun
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42
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Itskos G, Othonos A, Choulis SA, Iliopoulos E. Förster resonant energy transfer from an inorganic quantum well to a molecular material: Unexplored aspects, losses, and implications to applications. J Chem Phys 2015; 143:214701. [PMID: 26646883 DOI: 10.1063/1.4935963] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A systematic investigation of Förster resonant energy transfer (FRET) is reported within a hybrid prototype structure based on nitride single quantum well (SQW) donors and light emitting polymer acceptors. Self-consistent Schrödinger-Poisson modeling and steady-state and time-resolved photoluminescence experiments were initially employed to investigate the influence of a wide structural parameter space on the emission quantum yield of the nitride component. The optimized SQW heterostructures were processed into hybrid structures with spin-casted overlayers of polyfluorenes. The influence of important unexplored aspects of the inorganic heterostructure such as SQW confinement, content, and doping on the dipole-dipole coupling was probed. Competing mechanisms to the FRET process associated with interfacial recombination and charge transfer have been studied and their implications to device applications exploiting FRET across heterointerfaces have been discussed.
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Affiliation(s)
- G Itskos
- Experimental Condensed Matter Physics Laboratory, Department of Physics, University of Cyprus, Nicosia 1678, Cyprus
| | - A Othonos
- Laboratory of Ultrafast Science, Department of Physics, University of Cyprus, Nicosia 1678, Cyprus
| | - S A Choulis
- Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3603, Cyprus
| | - E Iliopoulos
- Microelectronics Research Group, IESL, FORTH and Physics Department, University of Crete, P.O. Box 1385, 71110 Heraklion-Crete, Greece
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43
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44
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Prasai D, Klots AR, Newaz AKM, Niezgoda JS, Orfield NJ, Escobar CA, Wynn A, Efimov A, Jennings GK, Rosenthal SJ, Bolotin KI. Electrical Control of near-Field Energy Transfer between Quantum Dots and Two-Dimensional Semiconductors. NANO LETTERS 2015; 15:4374-4380. [PMID: 26027714 DOI: 10.1021/acs.nanolett.5b00514] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We investigate near-field energy transfer between chemically synthesized quantum dots (QDs) and two-dimensional semiconductors. We fabricate devices in which electrostatically gated semiconducting monolayer molybdenum disulfide (MoS2) is placed atop a homogeneous self-assembled layer of core-shell CdSSe QDs. We demonstrate efficient nonradiative Förster resonant energy transfer (FRET) from QDs into MoS2 and prove that modest gate-induced variation in the excitonic absorption of MoS2 leads to large (∼500%) changes in the FRET rate. This in turn allows for up to ∼75% electrical modulation of QD photoluminescence intensity. The hybrid QD/MoS2 devices operate within a small voltage range, allow for continuous modification of the QD photoluminescence intensity, and can be used for selective tuning of QDs emitting in the visible-IR range.
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Affiliation(s)
| | | | - A K M Newaz
- §Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, United States
| | | | | | | | | | - Anatoly Efimov
- #Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, United States
| | | | - Sandra J Rosenthal
- ∇Vanderbilt Institute for Nanoscale Science and Engineering, Nashville, Tennessee 37235, United States
- ○Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
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45
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Liu X, Qiu J. Recent advances in energy transfer in bulk and nanoscale luminescent materials: from spectroscopy to applications. Chem Soc Rev 2015; 44:8714-46. [DOI: 10.1039/c5cs00067j] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We discuss optical energy transfer involving ions, QDs, molecules etc., together with the relevant applications in different areas.
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Affiliation(s)
- Xiaofeng Liu
- State Key Laboratory of Modern Optical Instrumentation
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jianrong Qiu
- State Key Laboratory of Modern Optical Instrumentation
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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