
Dr. Biswajit Choudhury
RESEARCH
My research interests fall in the use of semiconductor nanomaterials for optoelectronics and energy applications. I have an insatiable desire to be actively involved in the following research areas—
1. Plasmonics for Energy Conversion
2. Defect Engineering in Semiconductor Nanostructures
3. Fluorescent Nanomaterials
CAREER
- Ph.D. Tezpur University (2014) “Investigation of optical and magnetic properties of pristine and doped TiO2 nanoparticles” (Supervisor: Prof. Amarjyoti Choudhury)
- MSc. Tezpur University (2008)
- B.Sc. Gauhati University (2005)
Employment
1. Assistant Professor-II (July 2019-present)
Physical Sciences Division, Institute of Advanced Study in Science and Technology, Guwahati, India
2.DST INSPIRE Faculty (March 2016-July 2019)
Institute of Advanced Study in Science and Technology, Guwahati, India
Metal oxide-carbon based hybrid nanomaterials for photocatalytic application
Research Experience
1.Institute Postdoctoral Fellow (Sept 2014-March 2016)
Indian Institute of Technology Guwahati, Guwahati, India
Graphitic carbon nitride and graphene for photocatalytic applications (Supervisor: Prof. PK Giri)
2.DST Research Associate (March 2014-August 2014)
Tezpur University, Tezpur, India,
Defect mediated ferromagnetism in metal oxide and defects manipulation for photocatalysis (Supervisor: Prof. A. Choudhury)
3.Visiting Research Fellow (April 2010-June 2010)
Jawaharlal Nehru Center for Advanced Scientific Research, Bangalore, India
Interaction of inorganic nanoparticles with Graphene (Supervisor: Prof. CNR Rao)
PUBLICATIONS
- B. Choudhury, U. Saikia, M.B. Sahariah, A. Choudhury, Vacancy Induced p-Orbital Ferromagnetism in MgO Nanocrystallite. J. Alloys and Compds. 819 (2020) 153060. (I.F. 4.175)
- T. Kashyap, S. Biswasi, AR Pal, B. Choudhury, Unravelling the Catalytic and Plasmonic Roles of g-C3N4 Supported Ag and Au Nanoparticles Under Selective Photoexcitation, ACS Sustainable Chem.Eng., 7, 23 (2019)19295-19302. (I.F. 6.97)
- K. Paul, PK Giri, M. Fuji, H. Ishimata, B. Choudhury, Evidence for Plasmonic Hot-Electron Injection-induced Superior Visible Light Photocatalysis by g-C3N4 Nanosheets Decorated with Ag-TiO2(B) and Au-TiO2(B) Nanorods, Solar Energy Mater. Sol. Cells. 201 (2019) 110053. (I.F. 6.019)
- B. Choudhury, K. Paul, D. Sanyal, A. Hazarika, P.K. Giri, Evolution of Nitrogen- Related Defects in Graphitic Carbon Nitride Nanosheets probed by Positron Annihilation and Photoluminescence Spectroscopy, J. Phys. Chem. C 122 (2018) 9209-9219. (I.F. 4.309)
- H Saikia, KK Hazarika, B Chutia, B Choudhury, P Bharali. A Simple Chemical Route toward High Surface Area CeO2 Nanoparticles Displaying Remarkable Radical Scavenging Activity. Chemistry Select 2 (2017) 3369-3375. (I.F. 1.716)
- R. Gone, B. Choudhury, P.K. Giri, In-situ decoration of Plasmonic Au Nanoparticles on Graphene Quantum Dots-Graphitic Carbon Nitride Hybrid and Evaluation of its Visible-Light Photocatalytic Performance, Nanotechnology 28 (2017) 395703. (I.F. 3.399)
- B. Choudhury, PK Giri, Isotype Heterostructure of Bulk and Nanosheets of Graphitic Carbon Nitride for Efficient Visible-Light Photodegradation of Methylene Blue, RSC Adv. 6 (2016) 24976-24984. (I.F. 3.049).
- RK Biroju, B Choudhury, PK Giri. Plasmon-enhanced strong visible light photocatalysis by defect engineered CVD graphene and graphene oxide physically functionalized with Au Nanoparticles. Catal. Sci. & Technol. 6 (2016) 7101-7112. (I.F. 5.726)
- B. Choudhury, S. Bayan, A. Choudhury, P. Chakraborty, Narrowing of Band Gap and Effective Charge Carrier separation in Oxygen-Deficient TiO2 Nanotubes with improved Visible-Light Photocatalytic activity, J. Colloid Interface Sci.465 (2016) 1-10. (I.F. 6.361)
- S. Bayan, B. Choudhury, P. Chakraborty, A. Choudhury, A Comprehensive Secondary Ion Mass Spectroscopy analysis of ZnO Nanowalls: Correlation to Photocatalytic Responses, J. Appl. Phys.117 (2015) 095304. (I.F. 2.328)
- R. Verma, SK. Samdarshi, S. Bojja, S. Paul, B. Choudhury, A Novel Thermophotocatalyst of Mixed-Phase Cerium Oxide (CeO2/Ce2O3) Homocomposite Nanostructure: Role of Interface and Oxygen Vacancies, Solar Energy Mater. Sol. Cells. 141 (2015) 414-422. (I.F. 6.019)
- S. Paul, P. Chetri, B. Choudhury, GA. Ahmed, A. Choudhury, Enhanced Visible-Light Photocatalytic activity of Gd doped Nanocrystalline Titania, J. Colloid and Interface Sci.439 (2015) 54-61. (I.F. 6.361)
- B. Choudhury, S. Paul, G.A. Ahmed, A. Choudhury, Adverse Effect of Mn Doping on the Magnetic Ordering in Mn-doped TiO2 Nanoparticles, Mater. Res. Express, 2 (2015) 096104. (I.F. 1.449)
- B. Choudhury, P. Chetri, A. Choudhury, Oxygen Defect and Formation of Ce3+ Affecting the Photocatalytic properties of CeO2 Nanoparticles, RSC Adv. 4 (2014) 4663. (I.F. 3.049)
- B. Choudhury, A. Choudhury, Oxygen Defect dependent variation of Band gap, Urbach Energy, and Luminescence property of Anatase, Anatase-Rutile Mixed Phase, and Rutile phases of TiO2 Nanoparticles, Physica E 56 (2014) 364-371. (I.F. 3.176)
- B. Choudhury, R. Verma, A. Choudhury, Oxygen Defect assisted Paramagnetic to Ferromagnetic conversion in Fe doped TiO2 Nanoparticles, RSC Adv. 4 (2014) 29314-29323. (I.F. 3.049)
- B Choudhury, P Basyach, A Choudhury. Monitoring F, F+ and F22+ related intense defect emissions from nanocrystalline MgO. J. Lumin. 149 (2014) 280-286. (I.F. 2.961)
- S Paul, B Choudhury, A Choudhury. Magnetic properties study of Gd doped TiO2 nanoparticles. Journal of Alloys and Compd. 601 (2014) 201-206. (I.F. 4.175)
- B Choudhury, M Dey, A Choudhury. Shallow and deep trap emission and luminescence quenching of TiO2 nanoparticles on Cu doping. Applied Nanoscience 4 (2014) 339-346. (I.F. 3.198)
- P. Chetri, B. Choudhury, A. Choudhury, Room-temperature Ferromagnetism in SnO2 Nanoparticles: An Experimental and Density Functional Study, J. Mater Chem. C 2 (2014) 9294-9302. (I.F. 6.641)
- B. Choudhury, A. Choudhury, Room-temperature Ferromagnetism in Defective TiO2 Nanoparticles: Role of Surface and Grain Boundary Oxygen Vacancies, J. Appl. Phys. 114 (2013) 203906. (I.F. 2.328)
- B. Choudhury, A. Choudhury, Structural, Optical and Ferromagnetic properties of Cr doped TiO2 Nanoparticles, Mater. Sci. Eng. B. 178 (2013) 794-800. (I.F. 3.507)
- B Choudhury, A Choudhury. Structural, optical and ferromagnetic properties of Cr doped TiO2 nanoparticles. Mater. Sci. Eng. B. 178 (2013) 239-247. (I.F. 3.507)
- B. Choudhury, A. Choudhury, Oxygen Vacancy and Dopant Concentration-dependent Magnetic properties of Mn-doped TiO2 Nanoparticle, Current Appl. Phys. 13 (2013) 1025-1031. (I.F. 2.010)
- B. Choudhury, A. Choudhury, Tailoring Luminescence properties of TiO2 Nanoparticles by Mn Doping, J. Lumin.136 (2013) 339-346. (I.F. 2.961)
- B. Choudhury, A. Choudhury, Dopant Induced Changes in Structural and Optical properties of Cr doped TiO2 Nanoparticles, Mater. Chem. Phys. 132 (2012) 1112- 1118. (I.F. 2.781)
- B. Choudhury, A. Choudhury, Ce3+and Oxygen Vacancy Mediated Tuning of Structural and Optical Properties of CeO2 Nanoparticles, Mater. Chem. Phys. 131 (2012) 666-671. (I.F. 2.781)
- B. Choudhury, B. Borah, A. Choudhury, Extending photocatalytic activity of TiO2 Nanoparticles to the Visible Region of Illumination by Doping of Cerium, Photochem Photobiol. 88 (2012) 257-264. (I.F. 2.338)
- B Choudhury, A Choudhury. Luminescence Characteristics of Cobalt doped TiO2 nanoparticles. J.Lumin. 132 (2012) 178-184. (I.F. 2.961)
- B. Choudhury, A. Choudhury, AKM Maidul Islam, P. Alagarsamy, M. Mukherjee, Effect of Oxygen Vacancy and Dopant concentration on the Magnetic Properties of High Spin Co2+ doped TiO2 Nanoparticles, J. Magn. Magn. Mater. 323 (2011) 440-446. (I.F. 2.683)
- B. Das, B. Choudhury, A. Gomathi, A.K. Manna, S.K. Pati, CNR Rao, Interaction of Inorganic Nanoparticles with Graphene, ChemPhysChem 12 (2011) 937-943. (I.F. 3.077)
Book Chapter
1. B. Choudhury, Carbon Nitride-A Wonder Photocatalyst (2019) in edited book-Nanophotocatalysis and Environmental Applications, Springer Nature.
2. B. Choudhury, A. Kalita, Defect Engineered Inorganic Nanomaterials for Supercapacitors (2019) in edited book-Inorganic Nanomaterials for Supercapacitor Design, CRC Press (Taylor and Francis).
DST INSPIRE Faculty Project
Duration: 2016-2021
Ph.D. Students
1. Trishamoni Kashyap (January 2019-)
M.Sc. Physics (2017), Gauhati University
Designation:
Research Assistant: December 2017-continuing
Institute JRF: February 2020-
2. Manash Pratim Nath (September 2019-)
M.Sc. Physics (2017), Tezpur University
Designation: CSIR-JRF (September 2019-)
3. Manju Kumari Jaiswal (September 2019-)
M.Sc. Physics (2018), University of Science and Technology, Meghalaya
Designation: DST INSPIRE JRF (Sept. 2019-)
4. Suvanakar Deka (February 2020-)
M.Sc. Physics (2018), University of Science and Technology, Meghalaya
Designation:Institute JRF (February 2020-)
M.Sc./M.Tech Dissertation
- Archita Choudhury (Jan-June 2018), M.Tech. in Materials Science and Engineering, GUIST, Guwahati, Assam
- Jayanta Talukdar (January-March 2020), M.Sc. in Physics (4th Sem), Kaziranga University, Jorhat, Assam
Summer/Winter Project Trainee
Antarleena Das (Pandu College), Bipanchee Acharya (GUIST), Manash Pratim Sarma (Brahmaputra College), Hrishikesh Sarma (GU)
Interested students to pursue their M.Sc./M.Tech./M.Phill dissertation works can contact me at biswa[dot]tezu[at]gmail[dot]com