IISER Kolkata

Sayan Bhattacharyya

Department: Chemical Sciences (DCS)

Personal Website: Click Here

Research Interests

The Advanced Functional Materials Laboratory (AFML) led by Prof. Sayan Bhattacharyya focuses on an interdisciplinary research on functional nanomaterials. The current research interests are: (A) Photovoltaics: Nanocrystal-assisted Metal-halide Perovskite Solar Cells; (B) Electrocatalytic and Photocatalytic Hydrogen Generation, N2 & CO2 Reduction; (C) Zinc-air Battery and Photorechargeable battery.

Academic Background

Ph. D. (Solid State Chemistry ), Indian Institute of Technology Kanpur (IIT Kanpur), 2006
M. Sc. (Physical Chemistry), Department of Chemistry (University of Kalyani), 1998
B. Sc. (Honours) (Chemistry (H), Physics (P), Mathematics (P)), Maulana Azad College (University of Calcutta), 1996

Positions

Professor, IISER Kolkata (current)
Associate Professor, IISER Kolkata (2015 - 2019)
Assistant Professor, IISER Kolkata (2010 - 2015)
Postdoctoral Researcher, Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA, USA (2008 - 2010)
Postdoctoral Fellow, Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel (2006 - 2008)

Awards and Honors

Selected Publications

Selected Publications:

Hazra, Vishwadeepa; Mandal, Arnab and Bhattacharyya, Sayan. 2024."Optoelectronic Insights of Lead-free Layered Halide Perovskites." Chem. Sci., 15, 1

Maji, Mamoni; Dutta, Supriti; Jena, Rohan; Dey, Anupam; Maji, Tapas Kumar; Pati, Swapan K. and Bhattacharyya, Sayan. 2024."Hydrogen Evolution in Neutral Media by Differenttial Intermediate Binding at Charge-Modulated Sites of a Bimetallic Alloy Electrocatalyst." Angew. Chem. Int. Ed., 63, e202403697

Mondal, Anamika; Ahuja, Manuj; Johari, Priya and Bhattacharyya, Sayan. 2024."Facet-Specific Ligand Dynamics: Scaling the Descriptors of Cs2AgBiBr6 Nanocrystals." Chem. Commun., 60, 3693-6

Majee, Rahul and Bhattacharyya, Sayan. 2023."Strategies to Develop Electrocatalytically Active Perovskite Oxide Nanosheets." ChemCatChem, 16, e202301116

Mandal, Arnab; Khuntia, Sanuja Kumar; Mondal, Debayan; Mahadevan, Priya and Bhattacharyya, Sayan. 2023."Spin Texture Sensitive Photodetection by Dion-Jacobson Tin-Halide Perovskites." J. Am. Chem. Soc., 145, 24990-5002

All Publications:

Hazra, Vishwadeepa; Mandal, Arnab and Bhattacharyya, Sayan. 2024."Optoelectronic Insights of Lead-free Layered Halide Perovskites." Chem. Sci., 15, 1

Maji, Mamoni; Dutta, Supriti; Jena, Rohan; Dey, Anupam; Maji, Tapas Kumar; Pati, Swapan K. and Bhattacharyya, Sayan. 2024."Hydrogen Evolution in Neutral Media by Differenttial Intermediate Binding at Charge-Modulated Sites of a Bimetallic Alloy Electrocatalyst." Angew. Chem. Int. Ed., 63, e202403697

Mondal, Anamika; Ahuja, Manuj; Johari, Priya and Bhattacharyya, Sayan. 2024."Facet-Specific Ligand Dynamics: Scaling the Descriptors of Cs2AgBiBr6 Nanocrystals." Chem. Commun., 60, 3693-6

Majee, Rahul and Bhattacharyya, Sayan. 2023."Strategies to Develop Electrocatalytically Active Perovskite Oxide Nanosheets." ChemCatChem, 16, e202301116

Mandal, Arnab; Khuntia, Sanuja Kumar; Mondal, Debayan; Mahadevan, Priya and Bhattacharyya, Sayan. 2023."Spin Texture Sensitive Photodetection by Dion-Jacobson Tin-Halide Perovskites." J. Am. Chem. Soc., 145, 24990-5002

Chaudhary, Sonu Pratap and Bhattacharyya, Sayan. 2023."Positive Feedback Mechanism of Probe Sonication for the Perovskite Films in Solar Cells." ACS Appl. Mater. Interfaces, 15, 50479-88

Hazra, Vishwadeepa; Mondal, Sudipta; Pattanayak, Pradip and Bhattacharyya, Sayan. 2023."Nanoplatelet Superlattices by Tin-induced Transformation of FAPbI3 Nanocrystals." Small, 20, 2304920

Mandal, Arnab; Gupta, Shresth; Dutta, Supriti; Pati, Swapan K. and Bhattacharyya, Sayan. 2023."Transition from Dion Jacobson Hybrid Layered Double Perovskites to 1D Perovskites for Ultraviolet to Visible Photodetection." Chem. Sci. , 14, 9770-9

Samanta, Debabrata; Mazumder, Aritra; Chaudhary, Sonu Pratap; Ghosh, Bishnupada; Saha, Pinku; Bhattacharyya, Sayan and Mukherjee, Goutam Dev. 2023."Phonon Anharmonicity and Soft-Phonon Mediated Structural Phase Transition in Cs3Bi2I9." Phys. Rev. B , 108, 054104

Mandal, A.; Hazra, V. and Bhattacharyya, S.. 2023."Perovskite Nanostructure Films for Optoelectronics and Photovoltaics." J. Phys. Chem. C, 127, 11767-79

Kandoth, N.; Chaudhary, S. P.; Gupta, S.; Raksha, K.; Chatterjee, A.; Gupta, S.; Karuthedath, S.; De Castro, C. S. P.; Laquai, F.; Pramanik, S. K.; Bhattacharyya, S.; Mallick, A. I. and Das, A.. 2023."Multimodal Biofilm Inactivation Using a Photocatalytic Bismuth Perovskite-TiO2-Ru(II)polypyridyl-based Multisite Heterojunction." ACS Nano, 17, 10393-406

Mondal, S.; Dutta, S.; Mal, S.; Pati, S. K. and Bhattacharyya, S.. 2023."Lattice Mismatch Guided Nickel-Indium Heterogeneous Alloy Electrocatalysts for Promoting the Alkaline Hydrogen Evolution." Angew. Chem. Int. Ed., 62, e202301269

Parvin, S.; Bothra, N.; Dutta, S.; Maji, M.; Mura, M.; Kumar, A.; Chaudhary, D. K.; Rajput, P.; Kumar, M.; Pati, S. K. and Bhattacharyya, S.. 2023."Inverse 'Intra-Lattice' Charge Transfer in Nickel-Molybdenum Dual Electrocatalysts Regulated by Under-coordinating the Molybdenum Center." Chem. Sci., 14, 3056-3069

Bag, S.; Sasmal, H. S.; Chaudhary, S. P.; Dey, K.; Blätte, D.; Blätte, D.; Guntermann, R.; Guntermann, R.; Zhang, Y.; Zhang, Y.; Položij, M.; Položij, M.; Kuc, A.; Shelke, A.; Vijayaraghavan, R. K.; Vijayaraghavan, R. K.; Ajithkumar, T. G.; Bhattacharyya, S.; Heine, T.; Heine, T.; Bein, T.; Bein, T. and Banerjee, R.. 2023."Covalent Organic Framework Thin-film Photodetectors from Solution Processable Porous Nanospheres." J. Am. Chem. Soc., 145, 1649-1659

Maji, M.; Dihingia, N.; Dutta, S.; Parvin, S.; Pati, S. K. and Bhattacharyya, S.. 2022."Charge Transfer Modulated Heterointerface for Hydrogen Production at All pH." J. Mater. Chem. A, 10, 24927-37

Mukhuti, K.; Mandal, A.; Roy, B.; Bhattacharyya, S. and Bansal, B.. 2022."Carrier Thermalization and Zero-point Bandgap Renormalization in Halide Perovskites from the Urbach Tails of the Emission Spectrum." Appl. Phys. Lett., 121, 182104

Mandal, A.; Roy, S.; Mondal, A.; Gupta, S.; Pal, B. and Bhattacharyya, S.. 2022."Spacer Switched Two-dimensional Tin Bromide Perovskites Leading to Ambient-stable Near Unity Photoluminescence Quantum Yield." J. Phys. Chem. Lett., 13, 9103-9113

Das, S.; Mandal, A.; Alam, Md. T.; Kumar, C.; Sarkar, A.; Senanayak, S. P.; Bhattacharyya, S. and Zade, S. S.. 2022."4n? Stable Multitasking Azapentacene: Acidochromism, Hole Mobility, and Visible Light Photoresponse." ACS Appl. Mater. Interfaces, 14, 37982-9

Mandal, A.; Mondal, A.; Bhattacharyya, R. and Bhattacharyya, S.. 2022."Cs4CuSb2Cl12-xIx (x = 0-10) Nanocrystals for Visible Light Photodetection." Nanotechnology, 33, 415403

Majee, R.; Parvin, S.; Islam, Q. A.; Kumar, A.; Debnath, B.; Mondal, S.; Bhattacharjee, S.; Das, S.; Kumar, A. and Bhattacharyya, S.. 2022."The Perfect Imperfections in Electrocatalysts." Chem. Rec., 22, e202200070

Samanta, D.; Chaudhary, S. P.; Ghosh, B.; Bhattacharyya, S.; Shukla, G. and Mukherjee, G. D.. 2022."Pressure Induced Emission Enhancement and Bandgap Narrowing: Experimental Investigations and First Principles Theoretical Simulations on the Model Halide Perovskite Cs3Sb2Br9." Phys. Rev. B, 105, 104103

Chaudhary, S. P.; Bhattacharjee, S.; Hazra, V.; Shyamal, S.; Pradhan, N. and Bhattacharyya, S.. 2022."Cs3Bi2I9 Nanodiscs with Phase and Bi (III) State Stability under Reductive Potential or Illumination for H2 Generation from Diluted Aqueous HI." Nanoscale, 14, 4281-4291

Das, S.; Bhattacharjee, S.; Mondal, S.; Mondal, S.; Dutta, S.; Bothra, N.; Pati, S. K. and Bhattacharyya, S.. 2021."Bimetallic Zero-Valent Alloy with Measured High-Valent Surface States to Reinforce the Bifunctional Activity in Rechargeable Zinc-air Batteries." ACS Sustain. Chem. Eng., 9, 14868-80

Prodhan, S.; Chauhan, K. K.; Karmakar, M.; Ghosh, A.; Bhattacharyya, S. and Datta, P. K.. 2021."Tailoring Hot Carrier Cooling and Recombination Dynamics of Mixed-Halide-Perovskite by Incorporating Au@CZTS Core-shell Nanocrystal." J. Phys. D: Appl. Phys., 55, 014002

Mandal, A.; Ghosh, A.; Ghosh, D. and Bhattacharyya, S.. 2021."Photodetectors with High Responsivity by Thickness Tunable Mixed Halide Perovskite Nanosheets." ACS Appl. Mater. Interfaces, 13, 43104-14

Kumar, A.; Parvin, S.; Das, R. K. and Bhattacharyya, S.. 2021."Comprehensive and High-throughput Electrolysis of Water and Urea by 3-5 nm Nickel and Copper Coordination Polymers." Chem. Asian J., 16, 3444-3452

Das, S.; Choudhury, A.; Mandal, A.; Kumar, C.; Sahoo, S. R.; Bedi, A.; Karmakar, H. S.; Ghosh, N. G.; Dey, S.; Iyer, P. K.; Bhattacharyya, S. and Zade, S. S.. 2021."An Unconventional Route to an Ambipolar Azaheterocycle and its In Situ Generated Radical Anion." Org. Biomol. Chem., 19, 5114-5120

Sadhukhan, P.; Ghosh, D.; Sengupta, P.; Bhattacharyya, S. and Das, S.. 2021."Unraveling the Charge Transport Mechanism in Mechanochemically Processed Hybrid Perovskite Solar Cell." Langmuir, 37, 5513-5521

Ghosh, Dibyendu; Ali, Md. Yusuf; Ghosh, Anima; Mandal, Arnab and Bhattacharyya, Sayan. 2021."Heterovalent Substitution in Mixed Halide Perovskite Quantum Dots for Improved and Stable Photovoltaic Performance." J. Phys. Chem. C, 125, 5485-5493

Parvin, Sahanaz; Hazra, Vishwadeepa; Francis, Anita Gemmy; Pati, Swapan K. and Bhattacharyya, Sayan. 2021."In Situ Cation Intercalation in the Interlayer of Tungsten Sulfide with Overlaying Layered Double Hydroxide in a 2D Heterostructure for Facile Electrochemical Redox Activity." Inorg. Chem., 60, 6911-6921

Samanta, Debabrata; Saha, Pinku; Ghosh, Bishnupada; Chaudhary, Sonu Pratap; Bhattacharyya, Sayan; Chatterjee, Swastika and Mukherjee, Goutam Dev. 2021."Pressure-Induced Emergence of Visible Luminescence in Lead Free Halide Perovskite Cs3Bi2Br9: Effect of Structural Distortion." J. Phys. Chem. C, 125, 3432–3440

Mandal, Arnab; Senanayak, Satyaprasad P.; Friend, Richard H. and Bhattacharyya, Sayan. 2021."Thickness-Attuned CsPbBr3 Nanosheets with Enhanced p-Type Field Effect Mobility." J. Phys. Chem. Lett., 12, 1560–1566

Mondal, Surajit; Majee, Rahul; Islam, Quazi Arif and Bhattacharyya, Sayan. 2020."2D Heterojunction Between Double Perovskite Oxide Nanosheet and Layered Double Hydroxide to Promote Rechargeable Zinc?Air Battery Performance." ChemElectroChem, 7, 5005-5012

Chauhan, Kamlesh Kumar; Prodhan, Sayan; Bhattacharyya, Sayan; Dutta, Pranab Kumar and Datta, Prasanta Kumar. 2020."Hot Phonon and Auger Heating Mediated Slow Intraband Carrier Relaxation in Mixed Halide Perovskite." IEEE J. Quantum Electron., 57, 4800108

Debnath, Bharati; Salunke, Hemant G. and Bhattacharyya, Sayan. 2020."Spin Disorder and Particle Size Effects in Cobalt Ferrite Nanoparticles with Unidirectional Anisotropy and Permanent Magnet-like Characteristics." J. Phys. Chem. C, 124 , 25992–6000

Majee, Rahul; Islam, Quazi Arif; Mondal, Surajit and Bhattacharyya, Sayan. 2020."Electrochemically Reversible Lattice with Redox Active A-site of Double Perovskite Oxide Nanosheets to Reinforce Oxygen Electrocatalysis." Chem. Sci. , 11, 10180-9

Majee, Rahul; Das, Tisita; Chakraborty, Sudip and Bhattacharyya, Sayan. 2020."Shaping a Doped Perovskite Oxide with Measured Grain Boundary Defects to Catalyze Bifunctional Oxygen Activation for Rechargeable Zn-air Battery." ACS Appl. Mater. Interfaces , 12, 40355-63

Roy, Samrat; Mandal, Arnab; Raj R, Akshay; Bhattacharyya, Sayan and Pal, Bipul. 2020."Thermal Nonlinear Refraction in Cesium Lead Halide Perovskite Nanostructure Colloids." J. Phys. Chem. C, 124, 15558-64

Majee, Rahul; Mondal, Surajit and Bhattacharyya, Sayan. 2020."Charge transfer from perovskite oxide nanosheets to N-doped carbon nanotubes to promote enhanced performance of a zinc–air battery." Chem. Commun., 56, 8277-8280

Debnath, Bharati; Parvin, Sahanaz; Dixit, Harsha and Bhattacharyya, Sayan. 2020."Defect Oxygen Rich Cobalt Ferrite Nanoparticles for Practical Water Electrolysis with High Activity and Durability." ChemSusChem, 13, 3875-3886

Parvin, Sahanaz; Kumar, Ashwani; Ghosh, Anima and Bhattacharyya, Sayan. 2020."Earth-Abundant Bimetallic Catalyst Coated Metallic Nanowire Grown Electrode with Platinum-Like pH-Universal Hydrogen Evolution Activity at High Current Density." Chem. Sci., 11, 3893-3902

Chauhan, Kamlesh Kumar; Prodhan, Sayan; Ghosh, Dibyendu; Waghale, Pradney; Bhattacharyya, Sayan; Dutta, Pranab Kumar and Datta, Prasanta Kumar. 2020."Long Carrier Diffusion Length and Slow Hot Carrier Cooling in Thin Film Mixed Halide Perovskite." IEEE J. Photovolt., 10, 803-810

Sheikh, Md. Sariful; Ghosh, Dibyendu; Bhowmik, Tushar K.; Dutta, Alo; Bhattacharyya, Sayan and Sinha, T. P.. 2020."When multiferroics become photoelectrochemical catalysts: A case study with BiFeO3/La2NiMnO6." Mater. Chem. Phys., 244, 122685

Majee, Rahul; Kumar, Arun; Das, Tisita; Chakraborty, Sudip and Bhattacharyya, Sayan. 2020."Tweaking Nickel with Minimal Silver in a Heterogeneous Alloy of Decahedral Geometry to Deliver Platinum-like Hydrogen Evolution Activity." Angew. Chem. Int. Ed., 59, 2881-2889

Chaudhary, Dhirendra K.; Ghosh, Anima; Ali, Md. Yusuf and Bhattacharyya, Sayan. 2020."Charge Transport between Coaxial Polymer Nanorods and Grafted All-Inorganic Perovskite Nanocrystals for Hybrid Organic Solar Cells with Enhanced Photoconversion Efficiency." J. Phys. Chem. C, 124, 246-255

Ghosh, Anima; Chaudhary, Dhirendra K.; Mandal, Arnab; Prodhan, Sayan; Chauhan, Kamlesh Kumar; Vihari, Saket; Gupta, Govind; Datta, Prasanta Kumar and Bhattacharyya, Sayan. 2020."Core/Shell Nanocrystal Tailored Carrier Dynamics in Hysteresis-Less Perovskite Solar Cell with ~20% Efficiency and Long Operational Stability." J. Phys. Chem. Lett., 11, 591-600

Behera, Rakesh Kumar; Dutta, Anirban; Ghosh, Dibyendu; Bera, Suman; Bhattacharyya, Sayan and Pradhan, Narayan. 2019."Doping Smallest Shannon Radii Transition Metal Ion Ni(II) for Stabilizing a-CsPbI3 Perovskite Nanocrystals." J. Phys. Chem. Lett., 10, 7916-21

Majee, Rahul; Islam, Quazi Arif and Bhattacharyya, Sayan. 2019."Surface Charge Modulation of Perovskite Oxide at the Crystalline Junction with Layered Double Hydroxide for Durable Rechargeable Zinc-air Battery." ACS Appl. Mater. Interfaces, 11, 35853-62

Ghosh, Dibyendu; Chaudhary, Dhirendra K; Ali, Md. Yusuf; Chauhan, Kamlesh Kumar; Prodhan, Sayan; Bhattacharya, Sayantan; Ghosh, Barun; Datta, P. K.; Ray, Sekhar C. and Bhattacharyya, Sayan. 2019."All-inorganic Quantum Dot Assisted Enhanced Charge Extraction Across the Interfaces of Bulk Organo-Halide Perovskite for Efficient and Stable Pin-hole Free Perovskite Solar Cells." Chem. Sci., 10, 9530-9541

Islam, Quazi Arif; Majee, Rahul and Bhattacharyya, Sayan. 2019."Bimetallic Nanoparticle Decorated Perovskite Oxide for State-of-the-art Trifunctional Electrocatalysis." J. Mater. Chem. A, 7, 19453-64

Parvin, Sahanaz; Chaudhary, Dhirendra K.; Ghosh, Anima and Bhattacharyya, Sayan. 2019."Attuning the Electronic Properties of Two-dimensional Co-Fe-O for Accelerating Water Electrolysis and Photolysis." ACS Appl. Mater. Interfaces, 11, 30682-93

Bera, Suman; Ghosh, Dibyendu; Dutta, Anirban; Bhattacharyya, Sayan; Chakraborty, Sudip and Pradhan, Narayan. 2019."The Limiting Heterovalent B-site Doping in CsPbI3 Nanocrystals: The Phase and Optical Stability." ACS Energy Lett., 4, 1364-9

Bandyopadhyay, Arghya; Yadav, Priya; Sarkar, Keka and Bhattacharyya, Sayan. 2019."The destructive spontaneous ingression of tunable silica nanosheets through cancer cell membranes." Chem. Sci., 10, 6184-92

Chandrashekar, Hediyala B.; Maji, Arun; Halder, Ganga; Banerjee, Sucheta; Bhattacharyya, Sayan and Maiti, Debabrata. 2019."Photocatalyzed Borylation Using Water Soluble Quantum Dots." Chem. Commun., 55, 6201-4

Halder, Ganga; Ghosh, Anima; Parvin, Sahanaz and Bhattacharyya, Sayan. 2018."Cation Exchange in Zn-Ag-In-Se Core / Alloyed Shell Quantum Dots and their Applications in Photovoltaics and Water Photolysis." Chem. Mater. , 31, 161-170

Kapri, Sutanu and Bhattacharyya, Sayan. 2018."Molybdenum Sulfide - Reduced Graphene Oxide p-n Heterojunction Nanosheets with Anchored Oxygen Generating Manganese Dioxide Nanoparticles for Enhanced Photodynamic Therapy." Chem. Sci., 9, 8982-9

Kumar, Ashwani; Chaudhary, Dhirendra K; Parvin, Sahanaz and Bhattacharyya, Sayan. 2018."High Performance Duckweed-derived Carbon Support to Anchor NiFe Electrocatalysts for Efficient Solar Energy Driven Water Splitting." J. Mater. Chem. A, 6, 18948-59

Kapri, Sutanu and Bhattacharyya, Sayan. 2018."Cobalt Phosphide Nanorods with Controlled Aspect Ratios as Synergistic Photothermo-Chemotherapeutic Agents." ACS Appl. Nano Mater., 1, 5237-5245

Ghosh, Dibyendu; Ghosh, Anima; Ali, Md. Yusuf and Bhattacharyya, Sayan. 2018."Photoactive Core-shell Nanorods as Bifunctional Electrodes for Boosting the Performance of Quantum Dot Sensitized Solar Cells and Photoelectrochemical Cells." Chem. Mater. , 30, 6071-81

Majee, Rahul; Chakraborty, Sudip; Salunke, Hemant G and Bhattacharyya, Sayan. 2018."Maneuvering the Physical Properties and Spin States to Enhance the Activity of La-Sr-Co-Fe-O Perovskite Oxide Nanoparticles in Electrochemical Water Oxidation." ACS Appl. Energy Mater., 1, 3342-50

Kapri, Sutanu; Majee, Rahul and Bhattacharyya, Sayan. 2018."Chemical Modifications of Porous Carbon Nanospheres Obtained from Ubiquitous Precursors for Targeted Drug Delivery and Live Cell Imaging." ACS Sustain. Chem. Eng. , 6, 8503-14

Sahasrabudhe, Atharva; Dixit, Harsha; Majee, Rahul and Bhattacharyya, Sayan. 2018."Value Added Transformation of Ubiquitous Substrates into Highly Efficient and Flexible Electrodes for Water Splitting." Nature Commun. , 9, 2014

Ghosh, Dibyendu; Ali, Md. Yusuf; Chaudhary, Dhirendra and Bhattacharyya, Sayan. 2018."Dependence of Halide Composition on the Stability of Highly Efficient All-inorganic Cesium Lead Halide Perovskite Quantum Dot Solar Cells." Sol. Energy Mater. Sol. Cells, 185, 28-35

Halder, Ganga; Ghosh, Dibyendu; Ali, Md. Yusuf; Sahasrabudhe, Atharva and Bhattacharyya, Sayan. 2018."Interface Engineering in Quantum Dot Sensitized Solar Cells." Langmuir, 34, 10197-216

Kumar, Ashwani and Bhattacharyya, Sayan. 2017."Porous NiFe-oxide Nanocubes as Bifunctional Electrocatalyst for Efficient Water Splitting." ACS Appl. Mater. Interfaces, 9, 41906-15

Debnath, Bharati; Kumar, Ashwani; Salunke, Hemant G and Bhattacharyya, Sayan. 2017."Enhancing Multifunctionality Through Secondary Phase Inclusion by Self-Assembly of Mn3O4 Nanostructures With Superior Exchange Anisotropy and Oxygen Evolution Activity." J. Phys. Chem. C, 121, 25594-602

Sheikh, Md. S.; Ghosh, Dibyendu; Dutta, A; Bhattacharyya, Sayan and Sinha, T P. 2017."Lead Free Double Perovskite Oxides Ln2NiMnO6 (Ln = La, Eu, Dy, Lu), A New Promising Material for Photovoltaic Application." Mater. Sci. Engg.: B , 226, 10-17

Sadhu, Anustup; Salunke, Hemant G and Bhattacharyya, Sayan. 2017."Coexistence of High Magnetization and Anisotropy with Non-monotonic Particle Size Effect in Ferromagnetic PrMnO3 Nanoparticles." J. Phys. Chem. C, 121, 21029-36

Debnath, Bharati; Salunke, Hemant G; Shivaprasad, S M and Bhattacharyya, Sayan. 2017."Surfactant-Mediated Resistance to Surface Oxidation in MnO Nanostructures." ACS Omega , 2, 3028-35

Halder, Ganga and Bhattacharyya, Sayan. 2017."Zinc-diffused Silver Indium Selenide Quantum Dot Sensitized Solar Cells with Enhanced Photoconversion Efficiency." J. Mater. Chem. A, 5, 11746-755

Ghosh, Dibyendu; Kapri, Sutanu and Bhattacharyya, Sayan. 2016."Phenomenal Ultraviolet Photoresponsivity and Detectivity of Graphene Dots Immobilized on Zinc Oxide Nanorods." ACS Appl. Mater. Interfaces, 8, 35496-504

Datta, Abheek; Kapri, Sutanu and Bhattacharyya, Sayan. 2016."Carbon Dots with Tunable Concentrations of Trapped Anti-oxidant as an Efficient Metal-free Catalyst for Electrochemical Water Oxidation." J. Mater. Chem. A, 4, 14614-24

Debnath, Bharati; Roy, Anupam Singha; Kapri, Sutanu and Bhattacharyya, Sayan. 2016."Efficient Dye Degradation Catalyzed by Manganese Oxide Nanoparticles and the Role of Cation Valence." ChemistrySelect, 1, 4265-4273

Jana, Rajesh; Saha, Pinku; Pareek, Vivek; Basu, Abhisek; Kapri, Sutanu; Bhattacharyya, Sayan and Mukherjee, Goutam Dev. 2016."High Pressure Experimental Studies on CuO: Indication of Re-entrant Multiferroicity at Room Temperature." Sci. Rep. , 6, 31610

Bhattacharyya, Sayan; Salunke, Hemant G.; Shivaprasad, Sonnada M. and Bhattacharyya, Sayan. 2016."Extensive Parallelism between Crystal Parameters and Magnetic Phase Transitions of Unusually Ferromagnetic Praseodymium Manganite Nanoparticles." Inorg. Chem., 55, 7903-7911

Sahasrabudhe, Atharva; Kapri, Sutanu and Bhattacharyya, Sayan. 2016."Graphitic Porous Carbon Derived from Human Hair as 'Green' Counter Electrode in Quantum Dot Sensitized Solar Cells." Carbon, 107, 395-404

Tripathi, Shweta; Kapri, Sutanu; Datta, Abheek and Bhattacharyya, Sayan. 2016."Influence of Morphology of Carbon Nanstructures on the Stimulated Growth of Gram Plant." RSC Adv., 6, 43864-73

Ghosh, Dibyendu; Halder, Ganga; Sahasrabudhe, Atharva and Bhattacharyya, Sayan. 2016."Microwave Synthesized CuxS and Graphene Oxide Nanoribbon Composite as Highly Efficient Counter Electrode for Quantum Dot Sensitized Solar Cells." Nanoscale, 8, 10632-41

Debnath, Bharati; Bansal, Aprajita; Salunke, Hemant G.; Sadhu, Anustup and Bhattacharyya, Sayan. 2016."Enhancement of Magnetization through Interface Exchange Interactions of Confined NiO Nanoparticles within the Mesopores of CoFe2O4." J. Phys. Chem. C, 120, 5523-5533

Kapri, Sutanu; Maiti, Sankar and Bhattacharyya, Sayan. 2016."Lemon Grass Derived Porous Carbon Nanospheres Functionalized for Controlled and Targeted Drug Delivery." Carbon, 100, 223-235

Sahasrabudhe, Atharva and Bhattacharyya, Sayan. 2015."Dual Sensitization Strategy for High-Performance Core/Shell/Quasi-shell Quantum Dot Solar Cells." Chem. Mater., 27, 4848–4859

Halder, Ganga and Bhattacharyya, Sayan. 2015."Plight of Mn-doping in Colloidal CdS Quantum Dots to Boost the Efficiency of Solar Cells." J. Phys. Chem. C, 119, 13404-12

Datta, Abheek; Kapri, Sutanu and Bhattacharyya, Sayan. 2015."Enhanced Catalytic Activity of Palladium Nanoparticles Confined Inside Porous Carbon in Methanol Electro-Oxidation." Green Chem., 17, 1572-1580

Bhattacharyya, Sayan. 2015."The Iron Nitride Family at Reduced Dimensions: A Review of their Synthesis Protocols and Structural and Magnetic Properties." J. Phys. Chem. C, 119, 1601-1622

Datta, Abheek; Sadhu, Anustup; Santra, Subhankar; Shivaprasad, S. M.; Mandal, Swadhin K. and Bhattacharyya, Sayan. 2014."Pd nanoparticle concentration dependent self-assembly of Pd@SiO2 nanoparticles into leaching resistant microcubes." Chem. Commun., 50, 10510-12

Sadhu, Anustup; Singh, Shiv Prakash and Bhattacharyya, Sayan. 2014."Direct Correlation of the Morphologies of Metal Carbonates, Oxycarbonates and Oxides Synthesized by Dry Autoclaving to the Intrinsic Properties of the Metals." Cryst. Growth Des., 14, 4060-4067

Debnath, Bharati; Halder, Ganga and Bhattacharyya, Sayan. 2014."One-step Synthesis, Structural and Optical Characterization of Self-assembled ZnO Nanoparticle Clusters with Quench-induced Defects." Sci. Adv. Mat., 6, 1160-1169

Sadhu, Anustup and Bhattacharyya, Sayan. 2014." Enhanced Low-field Magnetoresistance in La0.71Sr0.29MnO3 Nanoparticles Synthesized by Non-aqueous Sol-gel Route." Chem. Mater., 26, 1702-1710

Sadhu, Anustup and Bhattacharyya, Sayan. 2013."Stacked Nanosheets of Pr1?xCaxMnO3 (x = 0.3 and 0.49): A Ferromagnetic Two-Dimensional Material with Spontaneous Exchange Bias." J. Phys. Chem. C, 117, 26351?60

Datta, Abheek; Dutta, Priyanka; Sadhu, Anustup; Maiti, Sankar and Bhattacharyya, Sayan. 2013."Single-step scalable conversion of waste natural oils to carbon nanowhiskers and their interaction with mammalian cells." J. Nanopart. Res., 15, 1808

Datta, Abheek; Sadhu, Anustup; Sen, Bhaskar; Kaur, Manpreet; Sharma, Rajhans; Das, Santosh Ch and Bhattacharyya, Sayan. 2013."Analysis of the Acid, Base and Air Oxidized Carbon Microspheres Synthesized in a Single Step from Waste Engine Oil." Corros. Sci., 73, 356-364

Sadhu, Anustup; Kramer, Thilo; Datta, Abheek; Wiedigen, Stefanie Anna; Norpoth, Jonas; Jooss, Christian and Bhattacharyya, Sayan. 2012."Ferromagnetism in Lightly Doped Pr1-xCaxMnO3 (x = 0.023, 0.036) Nanoparticles Synthesized by Microwave Irradiation." Chem. Mater., 24, 3758-3764

Gil Rebaza, Arles V.; Desimoni, Judith; Kurian, Sajith; Bhattacharyya, Sayan; Gajbhiye, N. S. and Peltzer y Blancá, Eitel L.. 2011."Ab-Initio Study of the Structural, Electronic, Magnetic and Hyperfine Properties of GaxFe4-xN (0.00 £ x £1.00) Nitrides." J. Phys. Chem. C, 115, 23081-9

Rich, D. H.; Estrin, Y.; Moshe, O. and Bhattacharyya, Sayan. 2011."Optical and Structural Studies of Phase Separation in ZnxCd1-x Se/C Core/Shell Nanocrystals." AIP Conf. Proc., 1399, 219-220

Bhattacharyya, Sayan; Zitoun, David and Gedanken, Aharon. 2011."Electron Paramagnetic Resonance Spectroscopic Investigation of Manganese Doping in ZnL (L = O, S, Se, Te) Nanocrystals." Nanosci. Nanotech. Lett., 3, 541-549

Bhattacharyya, Sayan; Zitoun, D. and Gedanken, A.. 2011."Magnetic Properties of Cd1-xMnxTe / C Nanocrystals." Nanotechnology, 22, 075703

Singhal, Riju; Orynbayeva, Zulfiya; Sundaram, Ramalingam Venkat Kalyana; Niu, Jun Jie; Bhattacharyya, Sayan; Vitol, Elina; Schrlau, Michael; Papazoglou, Elisabeth; Friedman, Gary and Gogotsi, Yury. 2011."Multifunctional Carbon-Nanotube Cellular Endoscopes." Nature Nanotech., 6, 57-64

Bhattacharyya, Sayan; Estrin, Y.; Rich, D. H.; Zitoun, D.; Koltypin, Yuri and Gedanken, A.. 2010."Luminescent and Ferromagnetic CdS:Mn2+ / C Core-Shell Nanocrystals." J. Phys. Chem. C, 114, 22002-11

Kurian, Sajith; Bhattacharyya, Sayan; Desimoni, Judith; Peltzer y Blancá, Eitel L.; Gil Rebaza, Arles V. and Gajbhiye, N. S.. 2010."Investigation of g´-Fe4N-GaN Nanocomposites: Structural, and Magnetic Characterization, Mössbauer Spectroscopy and Ab-initio Calculations." J. Phys. Chem. C, 114, 17542-9

Estrin, Yevgeni; Rich, Daniel H.; Moshe, Ofer; Bhattacharyya, Sayan and Gedanken, Aharon. 2010."Phase-separation in Zn xCd1-xSe/C Core/Shell Nanocrystals Studied with Cathodoluminescence Spectroscopy." Mater. Res. Soc. Symp. Proc., 1260, 65-70

Bhattacharyya, Sayan; Shivaprasad, S. M. and Gajbhiye, N. S.. 2010."Variation of Magnetic Ordering in e-Fe3N Nanoparticles." Chem. Phys. Lett., 496, 122-127

Pelletier, Valarie; Bhattacharyya, Sayan; Knoke, Isabel; Forohar, Farhad; Bichay, Magdy and Gogotsi, Yury. 2010."Copper Azide Confined Inside Templated Carbon Nanotubes." Adv. Funct. Mater., 20, 3168-3174

Bhattacharyya, Sayan; Kurian, Sajith; Shivaprasad, S. M. and Gajbhiye, N. S.. 2010."Synthesis and Magnetic Characterization of CoMoN2 Nanoparticles." J. Nanopart. Res., 12, 1107-1116

Singhal, Riju; Bhattacharyya, Sayan; Orynbayeva, Zulfiya; Vitol, Elina; Friedman, Gary and Gogotsi, Yury. 2010."Small Diameter Carbon Nanopipettes." Nanotechnology, 21, 015304

Estrin, Y.; Rich, D. H.; Moshe, O.; Bhattacharyya, Sayan and Gedanken, A.. 2009."Carrier Relaxation Dynamics of ZnxCd1-xSe/C Core/Shell Nanocrystals with Phase Separation as Studied by Time-resolved Cathodoluminescence." Appl. Phys. Lett., 95, 181903

Bhattacharyya, Sayan; Zitoun, D.; Estrin, Y.; Moshe, O.; Rich, D. H. and Gedanken, A.. 2009."A One-step, Template-free Synthesis, Characterization, Optical and Magnetic Properties of Zn1-xMnxTe Nanosheets." Chem. Mater., 21, 326-335

Bhattacharyya, Sayan; Estrin, Yevgeni; Moshe, Ofer; Rich, D. H.; Solovyov, L. and Gedanken, A.. 2009."Highly Luminescent ZnxCd1-xSe/C Core/Shell Nanocrystals: Large Scale Synthesis, Structural and Cathodoluminescence Studies." ACS Nano, 3, 1864-1876

Bhattacharyya, Sayan; Staack, David; Vitol, Elina; Singhal, Riju; Fridman, Alexander; Friedman, Gary and Gogotsi, Yury. 2009."Localized Synthesis of Metal Nanoparticles Using Nanoscale Corona Discharge in Aqueous Solutions." Adv. Mater., 21, 4039-4044

Gajbhiye, N. S.; Bhattacharyya, Sayan and Sharma, Sachil. 2008."Observation of Exchange Bias and Spin-glass-like Ordering in e-Fe2.8Cr0.2N Nanoparticles." Pramana, 70, 367-373

Gajbhiye, N. S.; Bhattacharyya, Sayan and Shivaprasad, S. M.. 2008."Synthesis and Characterization of e-Fe3N/GaN, 54/46-composite Nanowires." Mater. Res. Bull., 43, 272-283

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2008."Spin-Glass-Like Behavior for e-Fe3-xNixN (0.0 = x = 0.8) Nanoparticles." Mater. Chem. Phys., 108, 201-207

Bhattacharyya, Sayan and Gedanken, A.. 2008."A Template-free, Sonochemical Route to Porous ZnO Nano-disks." Microporous Mesoporous Mater., 110, 553-559

Bhattacharyya, Sayan and Gedanken, A.. 2008."Microwave-assisted Insertion of Silver Nanoparticles into 3-D Mesoporous Zinc Oxide Nanocomposites and Nanorods." J. Phys. Chem. C, 112, 659-665

Bhattacharyya, Sayan and Gedanken, A.. 2008."Synthesis, Characterization and Room Temperature Ferromagnetism in Cobalt-Doped Zinc Oxide (ZnO:Co2+) Nanocrystals Encapsulated in Carbon." J. Phys. Chem. C, 112, 4517-4523

Bhattacharyya, Sayan; Perelshtein, Ilana; Moshe, O.; Rich, D. H. and Gedanken, A.. 2008." One-step Solvent-free Synthesis and Characterization of Zn1-xMnxSe @ C Nanorods and Nanowires." Adv. Funct. Mater., 18, 1641-1653

Bhattacharyya, Sayan; Zitoun, D. and Gedanken, A.. 2008."One-Pot Synthesis, Characterization of Mn2+-doped Wurtzite CdSe Nanocrystals Encapsulated with Carbon." J. Phys. Chem. C, 112, 7624-7630

Bhattacharyya, Sayan and Gedanken, A.. 2008."Interplay of Porosity in g–Al2O3 doped ZnO Nanocomposites: A Comparative Study of Sonochemical and Microwave Reaction Routes." J. Phys. Chem. C, 112, 13156-62

Bhattacharyya, Sayan; Pucci, Andrea; Zitoun, D. and Gedanken, A.. 2008."One-Pot Fabrication and Magnetic Studies of Mn-doped TiO2 Nanocrystals with an Encapsulating Carbon Layer." Nanotechnology, 19, 495711

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2007."Mössbauer and Magnetic Studies for the Coexistence of e-Fe3-xNixN and ?"-Fe4-yNiyN Phases in Fe-Ni-N Nanoparticles." Indian J. Pure Appl. Phys., 45, 834-838

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2007." Exchange Bias and Spin-Glass-Like Ordering in e-Fe3N-CrN Nanocomposites." Jpn. J. Appl. Phys., 46, 980-987

Gajbhiye, N. S.; Bhattacharyya, Sayan; Shivaprasad, S. M. and Weissmüller, J.. 2007."Synthesis, Characterization and Magnetic Interactions Study of e-Fe3N-CrN Nanorods." J. Nanosci. Nanotech., 7, 1836-1840

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2007."Magnetic Interactions in e-Fe3N-GaN Nanocomposites." J. Appl. Phys., 101, 113902

Bhattacharyya, Sayan; Gabashvili, Alexandra; Perkas, Nina and Gedanken, A.. 2007."Sonochemical Insertion of Silver Nanoparticles into 2-D Mesoporous Alumina." J. Phys. Chem. C, 111, 11161-7

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2006."Mössbauer Spectroscopic Studies of Self-assembled Monodispersed FePt Nanoparticles." Nat. Acad. Sci. Lett. (India), 29, 287-297

Gajbhiye, N. S.; Ningthoujam, R. S. and Bhattacharyya, Sayan. 2006."Magnetic Properties of Co and Ni Substituted e-Fe3N Nanoparticles." Hyperfine Interact., 164, 17-26

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2006."Synthesis and Structural Investigation of e-Fe3-xNixN (0.0 = x = 0.8) Nanoparticles." Prog. Cryst. Growth. Ch., 52, 132-141

Gajbhiye, N. S.; Bhattacharyya, Sayan; Balaji, G.; Ningthoujam, R. S.; Das, Raj Kumar; Basak, Susmita and Weissmüller, J.. 2005."Mössbauer and Magnetic Studies of MFe2O4 (M = Co, Ni) Nanoparticles." Hyperfine Interact., 165, 153-159

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2005."Mössbauer Studies of e-Fe3-xNixN and ?"-Fe4-yNiyN Nanoparticles." Hyperfine Interact., 165, 147-151

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2005."Magnetic Properties of e-Fe3N-GaN Core-Shell Nanowires." Nanotechnology, 16, 2012-2019

Gajbhiye, N. S.; Balaji, G.; Bhattacharyya, Sayan and Ghafari, M.. 2004."Mössbauer Studies of Nanosize CuFe2O4 Particles." Hyperfine Interact., 156-157, 57-61

Gajbhiye, N. S.; Panda, R. N.; Ningthoujam, R. S. and Bhattacharyya, Sayan. 2004."Magnetism of Nanostructured Iron Nitride (Fe-N) Systems." Phys. Status Solidi C, 1, 3252-3259

Gajbhiye, N. S. and Bhattacharyya, Sayan. 2004."Magnetic Properties of e-Fe3-xNixN Nanoparticles." Phys. Status Solidi C, 1, 3764-3768

ভারতীয় বিজ্ঞান শিক্ষা এবং গবেষণা প্রতিষ্ঠান কলকাতা

भारतीय विज्ञान शिक्षा एवं अनुसंधान संस्थान कोलकाता

INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH KOLKATA

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