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Lau CS, Das S, Verzhbitskiy IA, Huang D, Zhang Y, Talha-Dean T, Fu W, Venkatakrishnarao D, Johnson Goh KE. Dielectrics for Two-Dimensional Transition-Metal Dichalcogenide Applications. ACS Nano 2023. [PMID: 37257134 DOI: 10.1021/acsnano.3c03455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Despite over a decade of intense research efforts, the full potential of two-dimensional transition-metal dichalcogenides continues to be limited by major challenges. The lack of compatible and scalable dielectric materials and integration techniques restrict device performances and their commercial applications. Conventional dielectric integration techniques for bulk semiconductors are difficult to adapt for atomically thin two-dimensional materials. This review provides a brief introduction into various common and emerging dielectric synthesis and integration techniques and discusses their applicability for 2D transition metal dichalcogenides. Dielectric integration for various applications is reviewed in subsequent sections including nanoelectronics, optoelectronics, flexible electronics, valleytronics, biosensing, quantum information processing, and quantum sensing. For each application, we introduce basic device working principles, discuss the specific dielectric requirements, review current progress, present key challenges, and offer insights into future prospects and opportunities.
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Affiliation(s)
- Chit Siong Lau
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Sarthak Das
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Ivan A Verzhbitskiy
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Ding Huang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Yiyu Zhang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Teymour Talha-Dean
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Department of Physics and Astronomy, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Wei Fu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Dasari Venkatakrishnarao
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Kuan Eng Johnson Goh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Department of Physics, National University of Singapore, 2 Science Drive 3, 117551, Singapore
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 50 Nanyang Avenue 639798, Singapore
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2
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Zhang Y, Venkatakrishnarao D, Bosman M, Fu W, Das S, Bussolotti F, Lee R, Teo SL, Huang D, Verzhbitskiy I, Jiang Z, Jiang Z, Chai J, Tong SW, Ooi ZE, Wong CPY, Ang YS, Goh KEJ, Lau CS. Liquid-Metal-Printed Ultrathin Oxides for Atomically Smooth 2D Material Heterostructures. ACS Nano 2023; 17:7929-7939. [PMID: 37021759 DOI: 10.1021/acsnano.3c02128] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Two-dimensional (2D) semiconductors are promising channel materials for continued downscaling of complementary metal-oxide-semiconductor (CMOS) logic circuits. However, their full potential continues to be limited by a lack of scalable high-k dielectrics that can achieve atomically smooth interfaces, small equivalent oxide thicknesses (EOTs), excellent gate control, and low leakage currents. Here, large-area liquid-metal-printed ultrathin Ga2O3 dielectrics for 2D electronics and optoelectronics are reported. The atomically smooth Ga2O3/WS2 interfaces enabled by the conformal nature of liquid metal printing are directly visualized. Atomic layer deposition compatibility with high-k Ga2O3/HfO2 top-gate dielectric stacks on a chemical-vapor-deposition-grown monolayer WS2 is demonstrated, achieving EOTs of ∼1 nm and subthreshold swings down to 84.9 mV/dec. Gate leakage currents are well within requirements for ultrascaled low-power logic circuits. These results show that liquid-metal-printed oxides can bridge a crucial gap in dielectric integration of 2D materials for next-generation nanoelectronics.
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Affiliation(s)
- Yiyu Zhang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Dasari Venkatakrishnarao
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Michel Bosman
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, 117575 Singapore
| | - Wei Fu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Sarthak Das
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Fabio Bussolotti
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Rainer Lee
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Siew Lang Teo
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Ding Huang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Ivan Verzhbitskiy
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Zhuojun Jiang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Zhuoling Jiang
- Science, Mathematics and Technology, Singapore University of Technology and Design, 8 Somapah Road, 487372 Singapore
| | - Jianwei Chai
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Shi Wun Tong
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Zi-En Ooi
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Calvin Pei Yu Wong
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
| | - Yee Sin Ang
- Science, Mathematics and Technology, Singapore University of Technology and Design, 8 Somapah Road, 487372 Singapore
| | - Kuan Eng Johnson Goh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
- Department of Physics, National University of Singapore, 2 Science Drive 3, 117551 Singapore
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Chit Siong Lau
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis #08-03, Singapore 138634, Republic of Singapore
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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 Adv 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] [What about the content of this article? (0)] [Affiliation(s)] [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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Vattikunta R, Venkatakrishnarao D, Sahoo C, Naraharisetty SRG, Narayana Rao D, Müllen K, Chandrasekar R. Photonic Microresonators from Charge Transfer in Polymer Particles: Toward Enhanced and Tunable Two-Photon Emission. ACS Appl Mater Interfaces 2018; 10:16723-16730. [PMID: 29683311 DOI: 10.1021/acsami.8b01600] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Novel photonic microresonators with enhanced nonlinear optical (NLO) intensity are fabricated from polymer particles. As an additional advantage, they offer band gap tunability from the visible to near-infrared regions. A special protocol including (i) copolymerization of 4-(1-pyrenyl)-styrene, styrene, and 1,4-divinylbenzene, (ii) extraction of a dispersible and partly dissolvable, lightly cross-linked polymer network (PN), and (iii) treatment of the blue-emitting PN with electron acceptor (A) molecules such as 1,2,4,5-tetracyanobenzene (TCNB) and 7,7,8,8-tetracyanoquinodimethane (TCNQ) furnishes orange- and red-emitting D-A charge-transfer (CT) complexes with the pendant pyrene units. These complexes, here named PN-TCNB and PN-TCNQ, respectively, precipitate as microparticles upon the addition of water and subsequent ultrasonication. Upon electronic excitation, these spherical microparticles act as whispering-gallery-mode resonators by displaying optical resonances in the photoluminescence (PL) spectra because of light confinement. Further, the trapped incident light increases the light-matter interaction and thereby enhances the PL intensity, including the two-photon luminescence. The described protocol for polymer-based CT microresonators with tunable NLO emissions holds promise for a myriad of photonic applications.
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Affiliation(s)
| | | | | | | | | | - Klaus Müllen
- Max Planck Institute for Polymer Research , Ackermannweg 10 , D-55218 Mainz , Germany
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5
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Venkatakrishnarao D, Narayana YSLV, Mohaiddon MA, Mamonov EA, Mitetelo N, Kolmychek IA, Maydykovskiy AI, Novikov VB, Murzina TV, Chandrasekar R. Two-Photon Luminescence and Second-Harmonic Generation in Organic Nonlinear Surface Comprised of Self-Assembled Frustum Shaped Organic Microlasers. Adv Mater 2017; 29. [PMID: 28112830 DOI: 10.1002/adma.201605260] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/17/2016] [Indexed: 05/12/2023]
Abstract
An ultrathin nonlinear optical (NLO) organic surface composed of numerous self-assembled frustum-shaped whispering-gallery-mode resonators displays both two-photon luminescence and second-harmonic-generation signals. A super-second-order increase of the NLO intensity with respect to pump power confirms the microlasing action and practical usefulness of the NLO organic surfaces.
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Affiliation(s)
- Dasari Venkatakrishnarao
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
| | - Yemineni S L V Narayana
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
| | - Mahamad A Mohaiddon
- Centre for Nanoscience and Technology, 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, Moscow, 119991, Russia
| | - Nikolai Mitetelo
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Irina A Kolmychek
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Anton I Maydykovskiy
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Vladimir B Novikov
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Tatiana V Murzina
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Rajadurai Chandrasekar
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
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Venkatakrishnarao D, Narayana YSLV, Mohaiddon MA, Mamonov EA, Mitetelo N, Kolmychek IA, Maydykovskiy AI, Novikov VB, Murzina TV, Chandrasekar R. Two-Photon Luminescence and Second-Harmonic Generation in Organic Nonlinear Surface Comprised of Self-Assembled Frustum Shaped Organic Microlasers. Adv Mater 2017. [PMID: 28112830 DOI: 10.1039/c7tc04621a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
An ultrathin nonlinear optical (NLO) organic surface composed of numerous self-assembled frustum-shaped whispering-gallery-mode resonators displays both two-photon luminescence and second-harmonic-generation signals. A super-second-order increase of the NLO intensity with respect to pump power confirms the microlasing action and practical usefulness of the NLO organic surfaces.
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Affiliation(s)
- Dasari Venkatakrishnarao
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
| | - Yemineni S L V Narayana
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
| | - Mahamad A Mohaiddon
- Centre for Nanoscience and Technology, 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, Moscow, 119991, Russia
| | - Nikolai Mitetelo
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Irina A Kolmychek
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Anton I Maydykovskiy
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Vladimir B Novikov
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Tatiana V Murzina
- Division of Quantum Electronics, Department of Physics, M. V. Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Rajadurai Chandrasekar
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500046, India
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Vattikunta R, Venkatakrishnarao D, Mohiddon MA, Chandrasekar R. Self-Assembly of “Chalcone” Type Push-Pull Dye Molecules into Organic Single Crystalline Microribbons and Rigid Microrods for Vis/NIR Range Photonic Cavity Applications. Chemphyschem 2016; 17:3435-3441. [DOI: 10.1002/cphc.201600756] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Radhika Vattikunta
- Functional Molecular Nano/Micro Solids Laboratory; School of Chemistry; University of Hyderabad, Gachibowli; Hyderabad 500046, Telangana India
| | - Dasari Venkatakrishnarao
- Functional Molecular Nano/Micro Solids Laboratory; School of Chemistry; University of Hyderabad, Gachibowli; Hyderabad 500046, Telangana India
| | - Mahamad Ahamad Mohiddon
- Department of Science and Humanities; National Institute of Technology, Tadepalligudem; 534101 Andhra Pradesh India
| | - Rajadurai Chandrasekar
- Functional Molecular Nano/Micro Solids Laboratory; School of Chemistry; University of Hyderabad, Gachibowli; Hyderabad 500046, Telangana India
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Narayana YSLV, Venkatakrishnarao D, Biswas A, Mohiddon MA, Viswanathan N, Chandrasekar R. Visible-Near-Infrared Range Whispering Gallery Resonance from Photonic μ-Sphere Cavities Self-Assembled from a Blend of Polystyrene and Poly[4,7-bis(3-octylthiophene-2-yl)benzothiadiazole-co-2,6-bis(pyrazolyl)pyridine] Coordinated to Tb(acac)3. ACS Appl Mater Interfaces 2016; 8:952-958. [PMID: 26694108 DOI: 10.1021/acsami.5b10710] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A novel red emitting copolymer (P1) was prepared (Mn ∼ 10.7 kDa) by copolymerizing tridentate ligand, namely 2,6-bis(pyrazolyl)pyridine (BPP) with 4,7-bis(2-ethynyl-5-thienyl)-2,1,3-benzothiadiazole. This copolymer readily formed an orange yellow emitting metal containing conjugated polymer (P1.Tb) with Tb(acac)3. Further, a judicial blend of P1.Tb with polystyrene and its subsequent self-assembly in THF/water produced microspheres with smooth surface area. Interestingly, continuous wave laser excitation of a single microsphere displayed whispering-gallery-mode (WGM) resonance modes over a broad wavelength range covering visible (Vis) and near-infrared (NIR) regions (0.550-0.875 μm). The estimated Q factor was up to 700, which is very high for a metal containing conjugated polymer (MCCP)-based optical gain medium.
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Affiliation(s)
- Yemineni S L V Narayana
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, and §School of Physics, University of Hyderabad , Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, India
| | - Dasari Venkatakrishnarao
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, and §School of Physics, University of Hyderabad , Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, India
| | - Arani Biswas
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, and §School of Physics, University of Hyderabad , Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, India
| | - Mahamad Ahamad Mohiddon
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, and §School of Physics, University of Hyderabad , Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, India
| | - Nirmal Viswanathan
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, and §School of Physics, University of Hyderabad , Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, India
| | - Rajadurai Chandrasekar
- Functional Molecular Nano-/Micro-Solids Laboratory, School of Chemistry, and §School of Physics, University of Hyderabad , Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, India
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Venkataramudu U, Venkatakrishnarao D, Chandrasekhar N, Mohiddon MA, Chandrasekar R. Single-particle to single-particle transformation of an active type organic μ-tubular homo-structure photonic resonator into a passive type hetero-structure resonator. Phys Chem Chem Phys 2016; 18:15528-33. [DOI: 10.1039/c6cp01295g] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an original “laser burning” technique to create organic hetero-structures displaying passive type whispering-gallery-mode resonance in the Vis-NIR region.
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Affiliation(s)
- Uppari Venkataramudu
- Functional Molecular Nano/Micro Solids Laboratory School of Chemistry
- University of Hyderabad
- Hyderabad 500046
- India
| | - Dasari Venkatakrishnarao
- Functional Molecular Nano/Micro Solids Laboratory School of Chemistry
- University of Hyderabad
- Hyderabad 500046
- India
| | - Naisa Chandrasekhar
- Functional Molecular Nano/Micro Solids Laboratory School of Chemistry
- University of Hyderabad
- Hyderabad 500046
- India
| | | | - Rajadurai Chandrasekar
- Functional Molecular Nano/Micro Solids Laboratory School of Chemistry
- University of Hyderabad
- Hyderabad 500046
- India
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