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Rajarshi Roy
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Amino-functionalized graphene quantum dots: origin of tunable heterogeneous photoluminescence
GS Kumar, R Roy, D Sen, UK Ghorai, R Thapa, N Mazumder, S Saha, ...
Nanoscale 6 (6), 3384-3391, 2014
2402014
Synthesis of SnS thin films via galvanostatic electrodeposition and fabrication of CdS/SnS heterostructure for photovoltaic applications
B Ghosh, R Roy, S Chowdhury, P Banerjee, S Das
Applied Surface Science 256 (13), 4328-4333, 2010
542010
Realizing Direct Gap, Polytype, Group IIIA Delafossite: Ab Initio Forecast and Experimental Validation Considering Prototype CuAlO2
N Mazumder, D Sen, UK Ghorai, R Roy, S Saha, NS Das, ...
The Journal of Physical Chemistry Letters 4 (20), 3539-3543, 2013
252013
Edge effect enhanced electron field emission in top assembled reduced graphene oxide assisted by amorphous CNT-coated carbon cloth substrate
R Roy, A Jha, D Banerjee, N Sankar Das, KK Chattopadhyay
AIP Advances 3 (1), 012115, 2013
222013
sp3 Bonded 2-Dimensional Allotrope of Carbon: A First-Principles Prediction
D Sen, BK Das, S Saha, R Roy, A Mitra, KK Chattopadhyay
Carbon, 2019
212019
Role of oxygen functionality on the band structure evolution and conductance of reduced graphene oxide
R Roy, R Thapa, S Chakrabarty, A Jha, P Midya, EM Kumar, ...
Chemical Physics Letters, 2017
182017
A scheme of simultaneous cationic–anionic substitution in CuCrO2 for transparent and superior p-type transport
P Mandal, N Mazumder, S Saha, UK Ghorai, R Roy, GC Das, ...
Journal of Physics D: Appl. Phys. 49, 275109, 2016
182016
Observation of Bright Green Luminescence in Eu2+ Complexed Graphene Oxide Composite through Reduction of Eu3+
UK Ghorai, R Roy, N Mazumder, S Saha, S Das, KK Chattopadhyay
New Journal of Chemistry, 2015
142015
Exploring the Emission Pathways in Nitrogen-Doped Graphene Quantum Dots for Bioimaging
I Jennifer Gomez, M Vasquez Sulleiro, A Doleckova, N Pizurova, ...
The Journal of Physical Chemistry C, 2021
132021
Unique quasi-vertical alignment of RGO sheets under an applied non-uniform DC electric field for enhanced field emission
R Roy, A Jha, D Sen, D Banerjee, KK Chattopadhyay
Journal of Materials Chemistry C 2 (36), 7608-7613, 2014
122014
Local Field Enhancement-Induced Enriched Cathodoluminescence Behavior from CuI-RGO Nanophosphor Composite for Field-Emission Display Applications
S Saha, R Roy, S Das, D Sen, UK Ghorai, N Mazumder, ...
ACS Applied Materials and Interfaces, 2016
112016
Curvature aided efficient axial field emission from carbon nanofiber–reduced graphene oxide superstructures on tungsten wire substrate
A Jha, R Roy, D Sen, KK Chattopadhyay
Applied Surface Science 366, 448-454, 2016
112016
Negative capacitance in ZnO1-xChx (Ch = S, Se, Te): Role of localized charge recombination
N Mazumder, P Mandal, R Roy, UK Ghorai, S Saha, KK Chattopadhyay
Journal of Applied Physics, 2017
102017
Resonant energy transfer in van der Waal stacked MoS2 – functionalized graphene quantum dots composite with ab-initio validation
R Roy, R Thapa, S Biswas, S Saha, UK Ghorai, D Sen, EM Kumar, ...
Nanoscale, 2018
92018
Raman Spectroscopic Observation of Gradual Polymorphic Transition and Phonon Modes in CuPc Nanorod
UK Ghorai, N Mazumder, H Mamgain, R Roy, S Saha, KK Chattopadhyay
The Journal Physical Chemistry C, 2017
82017
Colossal magnetoresistance in amino-functionalized graphene quantum dots at room temperature: manifestation of weak anti-localization and doorway to spintronics
R Roy, R Thapa, G Sandeep Kumar, N Mazumder, D Sen, S Sinthika, ...
Nanoscale, 2016
62016
Temperature-dependent site selection of boron doping in chemically derived graphene
S Sarkar, R Roy, BK Das, KK Chattopadhyay
Carbon 184, 253-265, 2021
52021
Raman imaging and stress quantification in self-assembled graphene oxide fiber 'Latin Letters'
R Roy, N Mazumder, G Sandeep Kumar, H Mamgain, UK Ghorai, D Sen, ...
Journal of Raman Spectroscopy, 2016
22016
Probing the charge transfer and electron-hole asymmetry in graphene-graphene quantum dot heterostructure
R Roy, D Holec, M Kratzer, P Muenzer, P Kaushik, L Michal, ...
Nanotechnology, 2022
12022
Evidence of flexoelectricity in graphene nanobubbles created by tip induced electric field
R Roy, D Nečas, L Zajíčková
Carbon 179, 677/682, 2021
12021
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Articles 1–20