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Chandrasekar R. Mechanophotonics - a guide to integrating microcrystals toward monolithic and hybrid all-organic photonic circuits. Chem Commun (Camb) 2022; 58:3415-3428. [PMID: 35229866 DOI: 10.1039/d2cc00044j] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Molecular crystals are emerging as a non-silicon alternative for the construction of all-organic photonic integrated circuits (OPICs). The advent of flexible molecular crystals and the development of atomic force microscopy tip-based mechanical micromanipulation (mechanophotonics) techniques facilitate the construction of many proof-of-principle OPICs. This article validates the reason for using organic crystals as alternate non-silicon materials for OPIC fabrication. It also guides the readers by introducing several crystal-based photonic modules and OPIC prototypes, their passive and active light transduction potentials, and the possibility of implementing well-known photo-physical concepts viz. optical energy transfer and reabsorbance mechanisms. There is also an urgent need to develop a suitable technique for creating geometrically and dimensionally well-defined organic crystals displaying photonic attributes. Finally, the goal should be to build a library of selected optical crystals to facilitate the construction of OPICs with a pick-and-place approach.
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Affiliation(s)
- Rajadurai Chandrasekar
- Advanced Organic Photonic Materials and Technology Laboratory, School of Chemistry and Centre for Nanotechnology, University of Hyderabad, Gachibowli, Hyderabad 500046, India.
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Jiang Z, Ren A, Yan Y, Yao J, Zhao YS. Exciton-Polaritons and Their Bose-Einstein Condensates in Organic Semiconductor Microcavities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106095. [PMID: 34881466 DOI: 10.1002/adma.202106095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Exciton-polaritons are half-light, half-matter bosonic quasiparticles formed by strong exciton-photon coupling in semiconductor microcavities. These hybrid particles possess the strong nonlinear interactions of excitons and keep most of the characteristics of the underlying photons. As bosons, above a threshold density they can undergo Bose-Einstein condensation to a polariton condensate phase and exhibit a rich variety of exotic macroscopic quantum phenomena in solids. Recently, organic semiconductors have been considered as a promising material platform for these studies due to their room-temperature stability, good processability, and abundant photophysics and photochemistry. Herein, recent advances of exciton-polaritons and their Bose-Einstein condensates in organic semiconductor microcavities are summarized. First, the basic physics is introduced, and then their emerging applications are highlighted. The remaining questions are also discussed and a personal viewpoint about the potential directions for future research is given.
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Affiliation(s)
- Zhengjun Jiang
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ang Ren
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongli Yan
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiannian Yao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yong Sheng Zhao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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Tardío C, Pradeep VV, Martín R, Rodríguez AM, de la Hoz A, Jada R, Annadhasan M, Prieto P, Chandrasekar R. Polarised Optical Emission from Organic Anisotropic Microoptical Waveguides Grown by Ambient Pressure Vapour-deposition. Chem Asian J 2021; 16:3476-3480. [PMID: 34468084 DOI: 10.1002/asia.202100910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 08/31/2021] [Indexed: 11/06/2022]
Abstract
Ambient pressure chemical vapour deposition of 5,5'-bis((2-(trifluoromethyl)phenyl)ethynyl)-2,2'-bithiophene provides ultrapure needle-shaped crystals. The crystal's supramolecular structure consists of an array of hydrogen bonds and π-π interactions leading to anisotropic arrangements. The cyan emitting crystals exhibit an optical waveguiding tendency with guided polarised optical emissions due to anisotropic molecular arrangements.
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Affiliation(s)
- Carlos Tardío
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Vuppu Vinay Pradeep
- Advanced Organic Photonic Materials and Technolgy Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, India
| | - Raúl Martín
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Ana M Rodríguez
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Antonio de la Hoz
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Ravi Jada
- Advanced Organic Photonic Materials and Technolgy Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, India
| | - Mari Annadhasan
- Advanced Organic Photonic Materials and Technolgy Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, India
| | - Pilar Prieto
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Rajadurai Chandrasekar
- Advanced Organic Photonic Materials and Technolgy Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, India
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Chandrasekar R. Mechanophotonics-Mechanical Micromanipulation of Single-Crystals toward Organic Photonic Integrated Circuits. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100277. [PMID: 33938127 DOI: 10.1002/smll.202100277] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/22/2021] [Indexed: 06/12/2023]
Abstract
The advent of molecular crystals as "smart" nanophotonic components namely, organic waveguides, resonators, lasers, and modulators are drawing wider attention of solid-state materials scientists and microspectroscopists. Crystals are usually rigid, and undeniably developing next-level crystalline organic photonic circuits of complex geometries demands using mechanically flexible crystals. The mechanical shaping of flexible crystals necessitates applying challenging micromanipulation methods. The rise of atomic force microscopy as a mechanical micromanipulation tool has increased the scope of mechanophotonics and subsequently, crystal-based microscale organic photonic integrated circuits (OPICs). The unusual higher adhesive energy of the flexible crystals to the surface than that of crystal shape regaining energy enables carving intricate crystal geometries using micromanipulation. This perspective reviews the progress made in a key research area developed by my research group, namely mechanophotonics-a discipline that uses mechanical micromanipulation of single-crystal optical components, to advance nanophotonics. The precise fabrication of photonic components and OPICs from both rigid and flexible microcrystal via AFM mechanical operations namely, moving, lifting, cutting, slicing, bending, and transferring of crystals are presented. The ability of OPICs to guide, split, couple, and modulate visible electromagnetic radiation using passive, active, and energy transfer mechanism are discussed as well with recent literature examples.
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Affiliation(s)
- Rajadurai Chandrasekar
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
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Vinay Pradeep V, Tardío C, Torres-Moya I, Rodríguez AM, Vinod Kumar A, Annadhasan M, de la Hoz A, Prieto P, Chandrasekar R. Mechanical Processing of Naturally Bent Organic Crystalline Microoptical Waveguides and Junctions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006795. [PMID: 33354900 DOI: 10.1002/smll.202006795] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/07/2020] [Indexed: 06/12/2023]
Abstract
Precise mechanical processing of optical microcrystals involves complex microscale operations viz. moving, bending, lifting, and cutting of crystals. Some of these mechanical operations can be implemented by applying mechanical force at specific points of the crystal to fabricate advanced crystalline optical junctions. Mechanically compliant flexible optical crystals are ideal candidates for the designing of such microoptical junctions. A vapor-phase growth of naturally bent optical waveguiding crystals of 1,4-bis(2-cyanophenylethynyl)benzene (1) on a surface forming different optical junctions is presented. In the solid-state, molecule 1 interacts with its neighbors via CH⋅⋅⋅N hydrogen bonding and π-π stacking. The microcrystals deposited at a glass surface exhibit moderate flexibility due to substantial surface adherence energy. The obtained network crystals also display mechanical compliance when cut precisely with sharp atomic force microscope cantilever tip, making them ideal candidates for building innovative T- and Δ-shaped optical junctions with multiple outputs. The presented micromechanical processing technique can also be effectively used as a tool to fabricate single-crystal integrated photonic devices and circuits on suitable substrates.
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Affiliation(s)
- Vuppu Vinay Pradeep
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
- Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
| | - Carlos Tardío
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Iván Torres-Moya
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Ana M Rodríguez
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Avulu Vinod Kumar
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
- Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
| | - Mari Annadhasan
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
- Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
| | - Antonio de la Hoz
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Pilar Prieto
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Rajadurai Chandrasekar
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
- Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
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Kumar AV, Rohullah M, Ravi J, Godumala M, Annadhasan M, Chandrasekar R. Mechanophotonic aspects of a room temperature phosphorescent flexible organic microcrystal. CrystEngComm 2021. [DOI: 10.1039/d1ce00475a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel crystal of PTX-2CF3 exhibits room temperature phosphorescence and mechanical flexibility. This flexible crystal efficiently transduces optical emission both in the straight and bent geometries.
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Affiliation(s)
- Avulu Vinod Kumar
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad-500046, India
| | - Mehdi Rohullah
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad-500046, India
| | - Jada Ravi
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad-500046, India
| | - Mallesham Godumala
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad-500046, India
| | - Mari Annadhasan
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad-500046, India
| | - Rajadurai Chandrasekar
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad-500046, India
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Annadhasan M, Kumar AV, Venkatakrishnarao D, Mamonov EA, Chandrasekar R. Mechanophotonics: precise selection, assembly and disassembly of polymer optical microcavities via mechanical manipulation for spectral engineering. NANOSCALE ADVANCES 2020; 2:5584-5590. [PMID: 36133889 PMCID: PMC9417610 DOI: 10.1039/d0na00560f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/10/2020] [Indexed: 05/04/2023]
Abstract
The advancement of nanoscience and technology relies on the development and utility of innovative techniques. Precise manipulation of photonic microcavities is one of the fundamental challenges in nanophotonics. This challenge impedes the construction of optoelectronic and photonic microcircuits. As a proof-of-principle, we demonstrate here that an atomic force microscopy cantilever and confocal microscopy can be used together to mechanically micromanipulate polymer-based whispering gallery mode microcavities or microresonators into well-ordered geometries. The micromanipulation technique efficiently assembles or disassembles resonators and also produces well-ordered dimer, trimer, tetramer, and pentamer assemblies of resonators in linear and bent geometries. Interestingly, an intricate L-shaped coupled-resonator optical waveguide (CROW) comprising a pentamer assembly effectively transduces light through a 90° bend angle. The presented new research direction, which combines mechanical manipulation and nanophotonics, is also expected to open up a plethora of opportunities in nano and microstructure-based research areas including nanoelectronics and nanobiology.
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Affiliation(s)
- Mari Annadhasan
- School of Chemistry, University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500046 India
| | - Avulu Vinod Kumar
- School of Chemistry, University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500046 India
| | - Dasari Venkatakrishnarao
- School of Chemistry, University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500046 India
| | - Evgeniy A Mamonov
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University ul. Leninskiye Gory, 1 Moscow 119991 Russia
| | - Rajadurai Chandrasekar
- School of Chemistry, University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500046 India
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Popov M, Mamonov E, Mitetelo N, Zhdanova K, Ravi J, Chandrasekar R, Murizina T. Laser intensity-dependent nonlinear-optical effects in organic whispering gallery mode cavity microstructures. OPTICS LETTERS 2020; 45:4622-4625. [PMID: 32797025 DOI: 10.1364/ol.400620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
Nonlinear microresonators are very desired for a wide variety of applications. Up-conversion processes responsible for the transformation of IR laser radiation into visible are intensity-dependent and thus rather sensitive to all involved effects, which can mask each other. In this work we study the phenomena that are the most important for possible lasing in 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4 H-pyran dye spherical microresonators: the two-photon absorption and photobleaching. Based on the suggested model of the threshold-like dependence of the two-photon luminescence (TPL) on pump power, we demonstrate the role of intensity-dependent photobleaching in the appearance of the TPL and find a good agreement with the experiment. This finding is important for the analysis of lasing in nonlinear dye-based resonators.
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Annadhasan M, Agrawal AR, Bhunia S, Pradeep VV, Zade SS, Reddy CM, Chandrasekar R. Mechanophotonics: Flexible Single‐Crystal Organic Waveguides and Circuits. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003820] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Mari Annadhasan
- Functional Molecular Nano/Micro Solids Laboratory School of Chemistry University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500 046 Telangana India
| | - Abhijeet R. Agrawal
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Surojit Bhunia
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
- Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Vuppu Vinay Pradeep
- Functional Molecular Nano/Micro Solids Laboratory School of Chemistry University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500 046 Telangana India
| | - Sanjio S. Zade
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - C. Malla Reddy
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
- Centre for Advanced Functional Materials Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur West Bengal 741246 India
| | - Rajadurai Chandrasekar
- Functional Molecular Nano/Micro Solids Laboratory School of Chemistry University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500 046 Telangana India
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Annadhasan M, Agrawal AR, Bhunia S, Pradeep VV, Zade SS, Reddy CM, Chandrasekar R. Mechanophotonics: Flexible Single-Crystal Organic Waveguides and Circuits. Angew Chem Int Ed Engl 2020; 59:13852-13858. [PMID: 32392396 DOI: 10.1002/anie.202003820] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/17/2020] [Indexed: 01/23/2023]
Abstract
We present the one-dimensional optical-waveguiding crystal dithieno[3,2-a:2',3'-c]phenazine with a high aspect ratio, high mechanical flexibility, and selective self-absorbance of the blue part of its fluorescence (FL). While macrocrystals exhibit elasticity, microcrystals deposited at a glass surface behave more like plastic crystals due to significant surface adherence, making them suitable for constructing photonic circuits via micromechanical operation with an atomic-force-microscopy cantilever tip. The flexible crystalline waveguides display optical-path-dependent FL signals at the output termini in both straight and bent configurations, making them appropriate for wavelength-division multiplexing technologies. A reconfigurable 2×2-directional coupler fabricated via micromanipulation by combining two arc-shaped crystals splits the optical signal via evanescent coupling and delivers the signals at two output terminals with different splitting ratios. The presented mechanical micromanipulation technique could also be effectively extended to other flexible crystals.
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Affiliation(s)
- Mari Annadhasan
- Functional Molecular Nano/Micro Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, Telangana, India
| | - Abhijeet R Agrawal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Surojit Bhunia
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India.,Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Vuppu Vinay Pradeep
- Functional Molecular Nano/Micro Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, Telangana, India
| | - Sanjio S Zade
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - C Malla Reddy
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India.,Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Rajadurai Chandrasekar
- Functional Molecular Nano/Micro Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, Telangana, India
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Pradeep VV, Annadhasan M, Chandrasekar R. Vapour-Phase Epitaxial Growth of Dual-Colour-Emitting DCM-Perylene Micro-Heterostructure Optical Waveguides. Chem Asian J 2019; 14:4577-4581. [PMID: 31532575 DOI: 10.1002/asia.201901221] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Indexed: 11/11/2022]
Abstract
Organic micro-heterostructures (MHS) with dual optical emissions are essential to produce miniaturized optical waveguides for wavelength division multiplexing technologies. The bimolecular MHS produced by solution-based bottom-up self-assembly technique often leads to poor surface smoothness, edge imperfection, defects, and unwanted thin films deposits. Conversely, sequential sublimation technique at ambient pressure facilitates effective integration of α-perylene micro-square with dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl) 4H-pyran (DCM) microrods in an epitaxial manner to produce MHS. The obtained DCM/perylene MHS act as optical waveguides to produce red (λmax ≈670 nm) or/and yellow (λmax ≈607 nm) dual optical outputs via an energy transfer mechanism depending upon the heterostructures geometry and optical excitation positions. The presented dual-color emitting MHS optical waveguides are essential for the integrated nano-photonic and optoelectronic device structures.
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Affiliation(s)
- Vuppu Vinay Pradeep
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, Telangana, India
| | - Mari Annadhasan
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, Telangana, India
| | - Rajadurai Chandrasekar
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, Telangana, India
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12
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Lv Z, Man Z, Xu Z, Feng C, Yang Y, Liao Q, Wang X, Zheng L, Fu H. Intracellular near-Infrared Microlaser Probes Based on Organic Microsphere-SiO 2 Core-Shell Structures for Cell Tagging and Tracking. ACS APPLIED MATERIALS & INTERFACES 2018; 10:32981-32987. [PMID: 30080392 DOI: 10.1021/acsami.8b09380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Conventional near-infrared (NIR) luminescent probes, such as DsRed and Cy5, utilize spontaneous emission (SE) signals, which are broad (fwhm >50 nm) and often have low quantum yield. Herein, we developed smart NIR intracellular whispering-gallery mode (WGM) microlaser probes made by organic microspheres of (E)-3-(4-(diptolylamino)phenyl)-1-(1-hydroxynaphthalen-2-yl)prop-2-en-1-one (DPHP) coated with a silica shell. The overall small diameter ( D, adjustable between 2 and 10 μm) and the biocompatible silica shell ensure our core-shell microspheres (CSmSPs) to be engulfed in cells as a microlaser operating around 720 nm with a low threshold of 0.78 μJ/cm2. Considering that WGM mode spacing depending strongly on its size, it will be possible to distinguish millions of individual macrophages through well-defined WGM lasing peaks (fwhm ≤2 nm) of CSmSPs of different sizes. Furthermore, we monitored the transformation of normal macrophages to foamy ones by encoding them with our NIR CSmSPs microlaser probes, which deliver constant WGM lasing signals with a spectral fluctuation <0.02 nm and excellent stability.
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Affiliation(s)
- Zheng Lv
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry , Capital Normal University , Beijing 100048 , P. R. China
| | - Zhongwei Man
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry , Capital Normal University , Beijing 100048 , P. R. China
| | - Zhenzhen Xu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry , Capital Normal University , Beijing 100048 , P. R. China
| | - Changfu Feng
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry, School of Sciences , Tianjin University Tianjin Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , People's Republic of China
| | - Yong Yang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry , Capital Normal University , Beijing 100048 , P. R. China
| | - Qing Liao
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry , Capital Normal University , Beijing 100048 , P. R. China
| | - Xu Wang
- School of Basic Medical Sciences, and Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, the Institute of Cardiovascular Sciences and Institute of Systems Biomedicine , Peking University Health Science Center , Beijing 100191 , P. R. China
| | - Lemin Zheng
- School of Basic Medical Sciences, and Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, the Institute of Cardiovascular Sciences and Institute of Systems Biomedicine , Peking University Health Science Center , Beijing 100191 , P. R. China
| | - Hongbing Fu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry , Capital Normal University , Beijing 100048 , P. R. China
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of Chemistry, School of Sciences , Tianjin University Tianjin Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , People's Republic of China
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13
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Meng F, Li F, Yang L, Wang Y, Quan Y, Cheng Y. The amplified circularly polarized luminescence emission response of chiral 1,1′-binaphthol-based polymers via Zn(II)-coordination fluorescence enhancement. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fandian Meng
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Fei Li
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Lan Yang
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yuxiang Wang
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yiwu Quan
- Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yixiang Cheng
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
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