My research interest is a combined field of single-molecule fluorescence spectroscopy and multifunctional nanomaterials; particularly towards energy efficient solids state lighting technology and develop single-molecule methods to study the catalytic properties with structure-activity relationships of nanoscale materials. Compared with traditional ensemble measurements, the single molecule approach removes ensemble averaging, so that distributions and fluctuations of molecular properties can be characterized. I would like to develop single-molecule fluorescence imaging and spectroscopy, single-molecule FRET, and super-resolution localization microscopy facilities in the chemistry department.
729
Scholar Citations
14
Scholar h-index
16
Scholar i10-index
RECENT SCHOLAR PUBLICATIONS
Unraveling the dual emission of single quantum-dot by single particle spectroscopyA Layek, V Arora, S Sapra, A ChowdhuryJournal of Physics: Conference Series 2349 (1), 012026 2022
Insights on heterogeneity in blinking mechanisms and non-ergodicity using sub-ensemble statistical analysis of single quantum-dotsAC Amitrajit Mukherjee, Korak Kumar Ray, Chinmay Phadnis, Arunasish Layek ...The Journal of Chemical Physics 151, 084701 (1-11) 2019
Correlated Super-Resolution Fluorescence and Electron Microscopy Reveals the Catalytically Active Nanorods within Individual H-ZSM-22 Zeolite ParticlesA Layek, J Van Loon, MBJ Roeffaers, A KubarevCatalysis Science & Technology 9, 4645-4650 2019
Solvent polarity-induced pore selectivity in H-ZSM-5 catalysisAV Kubarev, E Breynaert, J Van Loon, A Layek, G Fleury, ...ACS Catalysis 7 (7), 4248–4252 2017
Heterogeneity in optical properties of near white-light emissive europium complex species revealed by spectroscopy of single nanoaggregatesM Irfanullah, DK Sharma, R Chulliyil, A Layek, S De, A ChowdhuryChemical Physics Letters 667, 247-253 2017
Synthesis of rare-earth doped ZnO nanorods and their defect–dopant correlated enhanced visible-orange luminescenceA Layek, S Banerjee, B Manna, A ChowdhuryRSC Advances 6 (42), 35892-35900 2016
Manifestations of Varying Grading Level in CdSe/ZnSe Core–Shell NanocrystalsK. G. Sonawane, K. S. Agarwal, C. Phadnis, D. Sharma, A. Layek, A. Chowdhury ...The Journal of Physical Chemistry C 120 (9), 5257–5264 2016
Native defects determine phase-dependent photoluminescence behavior of Eu 2+ and Eu 3+ in In 2 O 3 nanocrystalsV Ghodsi, A Layek, M Hegde, B Yildirim, PV RadovanovicChemical Communications 52, 4353-4356 2016
Dual Europium Luminescence Centers in Colloidal Ga2O3 Nanocrystals: Controlled in Situ Reduction of Eu (III) and Stabilization of Eu (II)A Layek, B Yildirim, V Ghodsi, LN Hutfluss, M Hegde, T Wang, ...Chemistry of Materials 27 (17), 6030–6037 2015
Distance-Dependent Energy Transfer between Ga2O3 Nanocrystal Defect States and Conjugated Organic Fluorophores in Hybrid White-Light-Emitting NanophosphorsV Chirmanov, PC Stanish, A Layek, PV RadovanovicThe Journal of Physical Chemistry C 119 (10), 5687–5696 2015
Hybrid ZnO-Based Nanoconjugate for Efficient and Sustainable White Light GenerationA Layek, PC Stanish, V Chirmanov, PV RadovanovicChemistry of Materials 27 (3), 1021–1030 2015
Correlation between native defects and dopants in colloidal lanthanide-doped Ga 2 O 3 nanocrystals: a path to enhance functionality and control optical propertiesT Wang, A Layek, ID Hosein, V Chirmanov, PV RadovanovicJournal of Materials Chemistry C 2, 3212-3222 2014
Ultra-narrow and widely tunable Mn^(2+) Emission from Single Nanocrystals of ZnS-CdS alloyA Hazarika, A Layek, S De, A Nag, S Debnath, P Mahadevan, ...arXiv preprint arXiv:1310.3630 2013
Ultranarrow and Widely Tunable -Induced Photoluminescence from Single Mn-Doped Nanocrystals of ZnS-CdS AlloysA Hazarika, A Layek, S De, A Nag, S Debnath, P Mahadevan, ...physical review letters 110 (26), 267401 2013
A generalized three-stage mechanism of ZnO nanoparticle formation in homogeneous liquid mediumA Layek, G Mishra, A Sharma, M Spasova, S Dhar, A Chowdhury, ...The Journal of Physical Chemistry C 116 (46), 24757-24769 2012
Quantum-confined stark effect in localized luminescent centers within InGaN/GaN quantum-well based light emitting diodesS De, A Layek, S Bhattacharya, D Kumar Das, A Kadir, A Bhattacharya, ...Applied Physics Letters 101 (12) 2012
Carrier recombination dynamics through defect states of ZnO nanocrystals: From nanoparticles to nanorodsA Layek, B Manna, A ChowdhuryChemical Physics Letters 539, 133-138 2012
Optoelectronic behaviors and carrier dynamics of individual localized luminescent centers in InGaN quantum-well light emitting diodesS De, D Kumar Das, A Layek, A Raja, M Kumar Singh, A Bhattacharya, ...Applied Physics Letters 99 (25) 2011
Light‐Emitting Diodes: Two Distinct Origins of Highly Localized Luminescent Centers within InGaN/GaN Quantum‐Well Light‐Emitting Diodes (Adv. Funct. Mater. 20/2011)S De, A Layek, A Raja, A Kadir, MR Gokhale, A Bhattacharya, S Dhar, ...Advanced Functional Materials 21 (20), 3827-3827 2011
Two Distinct Origins of Highly Localized Luminescent Centers within InGaN/GaN Quantum‐Well Light‐Emitting DiodesS De, A Layek, A Raja, A Kadir, MR Gokhale, A Bhattacharya, S Dhar, ...Advanced Functional Materials 21 (20), 3828-3835 2011
MOST CITED SCHOLAR PUBLICATIONS
Ultranarrow and Widely Tunable -Induced Photoluminescence from Single Mn-Doped Nanocrystals of ZnS-CdS AlloysA Hazarika, A Layek, S De, A Nag, S Debnath, P Mahadevan, ...physical review letters 110 (26), 267401 2013Citations: 94
Carrier recombination dynamics through defect states of ZnO nanocrystals: From nanoparticles to nanorodsA Layek, B Manna, A ChowdhuryChemical Physics Letters 539, 133-138 2012Citations: 84
A generalized three-stage mechanism of ZnO nanoparticle formation in homogeneous liquid mediumA Layek, G Mishra, A Sharma, M Spasova, S Dhar, A Chowdhury, ...The Journal of Physical Chemistry C 116 (46), 24757-24769 2012Citations: 83
Quantum-confined stark effect in localized luminescent centers within InGaN/GaN quantum-well based light emitting diodesS De, A Layek, S Bhattacharya, D Kumar Das, A Kadir, A Bhattacharya, ...Applied Physics Letters 101 (12) 2012Citations: 59
Two Distinct Origins of Highly Localized Luminescent Centers within InGaN/GaN Quantum‐Well Light‐Emitting DiodesS De, A Layek, A Raja, A Kadir, MR Gokhale, A Bhattacharya, S Dhar, ...Advanced Functional Materials 21 (20), 3828-3835 2011Citations: 56
Synthesis of rare-earth doped ZnO nanorods and their defect–dopant correlated enhanced visible-orange luminescenceA Layek, S Banerjee, B Manna, A ChowdhuryRSC Advances 6 (42), 35892-35900 2016Citations: 55
Spectrally resolved photoluminescence imaging of ZnO nanocrystals at single-particle levelsA Layek, S De, R Thorat, A ChowdhuryThe Journal of Physical Chemistry Letters 2 (11), 1241-1247 2011Citations: 53
Dual Europium Luminescence Centers in Colloidal Ga2O3 Nanocrystals: Controlled in Situ Reduction of Eu (III) and Stabilization of Eu (II)A Layek, B Yildirim, V Ghodsi, LN Hutfluss, M Hegde, T Wang, ...Chemistry of Materials 27 (17), 6030–6037 2015Citations: 50
Hybrid ZnO-Based Nanoconjugate for Efficient and Sustainable White Light GenerationA Layek, PC Stanish, V Chirmanov, PV RadovanovicChemistry of Materials 27 (3), 1021–1030 2015Citations: 43
Correlation between native defects and dopants in colloidal lanthanide-doped Ga 2 O 3 nanocrystals: a path to enhance functionality and control optical propertiesT Wang, A Layek, ID Hosein, V Chirmanov, PV RadovanovicJournal of Materials Chemistry C 2, 3212-3222 2014Citations: 39
Solvent polarity-induced pore selectivity in H-ZSM-5 catalysisAV Kubarev, E Breynaert, J Van Loon, A Layek, G Fleury, ...ACS Catalysis 7 (7), 4248–4252 2017Citations: 28
Distance-Dependent Energy Transfer between Ga2O3 Nanocrystal Defect States and Conjugated Organic Fluorophores in Hybrid White-Light-Emitting NanophosphorsV Chirmanov, PC Stanish, A Layek, PV RadovanovicThe Journal of Physical Chemistry C 119 (10), 5687–5696 2015Citations: 17
Manifestations of Varying Grading Level in CdSe/ZnSe Core–Shell NanocrystalsK. G. Sonawane, K. S. Agarwal, C. Phadnis, D. Sharma, A. Layek, A. Chowdhury ...The Journal of Physical Chemistry C 120 (9), 5257–5264 2016Citations: 15
Native defects determine phase-dependent photoluminescence behavior of Eu 2+ and Eu 3+ in In 2 O 3 nanocrystalsV Ghodsi, A Layek, M Hegde, B Yildirim, PV RadovanovicChemical Communications 52, 4353-4356 2016Citations: 15
Optoelectronic behaviors and carrier dynamics of individual localized luminescent centers in InGaN quantum-well light emitting diodesS De, D Kumar Das, A Layek, A Raja, M Kumar Singh, A Bhattacharya, ...Applied Physics Letters 99 (25) 2011Citations: 14
Correlated Super-Resolution Fluorescence and Electron Microscopy Reveals the Catalytically Active Nanorods within Individual H-ZSM-22 Zeolite ParticlesA Layek, J Van Loon, MBJ Roeffaers, A KubarevCatalysis Science & Technology 9, 4645-4650 2019Citations: 13
Insights on heterogeneity in blinking mechanisms and non-ergodicity using sub-ensemble statistical analysis of single quantum-dotsAC Amitrajit Mukherjee, Korak Kumar Ray, Chinmay Phadnis, Arunasish Layek ...The Journal of Chemical Physics 151, 084701 (1-11) 2019Citations: 7
Heterogeneity in optical properties of near white-light emissive europium complex species revealed by spectroscopy of single nanoaggregatesM Irfanullah, DK Sharma, R Chulliyil, A Layek, S De, A ChowdhuryChemical Physics Letters 667, 247-253 2017Citations: 4
