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Department of Physics

DEPARTMENTS

Engineering

Science

CENTRE

Dr. Pawan Chetri

Associate Professor

Condensed Matter Physics; Energy and Magnetic Nanomaterials; Experimental and DFT based Studies

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PROFESSIONAL BACKGROUND
From(Date of Joining)ToDesignationOrganisation
February 2025ContinuingAssociate ProfessorNERIST
December 2014February 2025Assistant ProfessorDebraj Roy College (Autonomous)
HONORS AND AWARDS
AwardInstituteYear
EDUCATIONAL QUALIFICATION
DegreeSubjectUniversityYear
Ph.DPhysicsTezpur University2015
MScPhysicsTezpur University2011
BScPhysicsDibrugarh University2009
ADMINISTRATIVE BACKGROUND
FromToDesignationOrganisation
MEMBERSHIPS IN PROFESSIONAL BODIES

TEACHING ENGAGEMENTS
TitleCourse CodeModuleSemester
M. TECH. THESIS SUPERVISED
Title of ProjectNames of Students
PH.DS SUPERVISING
TopicScholar NameStatus of PhDRegistration Year
PARTICIPATION IN SHORT TERM COURSES
Course NameSponsored ByDate
COURSES OR CONFERENCES ORGANISED
Conference NameSponsored ByDate
National Conference on Nanomaterials and its ApplicationsUGC2017
BOOKS AUTHORED
  1. Solid State Physics
  2. Analog System and Applications
  3. Chapter Name: Surface Plasmon Resonance Biosensors Based on Kretschmann Configuration: Basic Instrumentation and Applications; Book Name: Recent Advances in Plasmonic Probes: Theory and Practice; Published by Springer.
  4. Chapter Name: An Investigation into the Thermoluminescence Properties of SnO2 and
  5. SnO2/Al2O3 Nanoparticles; Book Name: Fundamental Frontiers Exploring Core Sciences; Published by Unika Prakashan.
PUBLICATIONS
  1. Rituraj Mahanta, Pawan Chetri*, Nikhil Parasar, Dimishree Neog and Bidhan Mohanta, “Defect-rich sunlight-responsive SnO2  photocatalyst for methyl orange dye degradation: a step towards wastewater treatment”, J. Korean Phys. Soc. 85, 996–1009 (2024).
  2. Rituraj Mahanta, Pawan Chetri*, Nishant Shukla, Dulen Bora, “Daylight photocatalytic activity of SnO2@ Al2O3 core-shell: An experimental & first principles study”, Physica B: Condensed Matter 690, 416230, 2024
  3. Pawan Chetri* and Nishant Shukla, "Synergistic Insights into the Structural, Optical, and Magnetic Features of Iron-Modified Tin Oxide (Fe-SnO2) Nanoparticles: An Integrated Experimental and First Principles Investigation", Brazilian Journal of Physics 54 (3), 72, 2024.
  4. Rituraj Mahanta, Pawan Chetri*, Dulen Bora, Investigation of sunlight driven SPR assisted photocatalytic activity of Ag doped SnO2 nanoparticles, Phys. Scr. 98 115955, 2023.
  5. Rituraj Mahanta, Pawan Chetri*, Dulen Bora, Investigation of visible light photocatalysis effect of SnO2 nanoparticles, Materials Today: Proceeding, DOI: 10.1016/j.matpr.2023.04.348.
  6. Nishant Shukla, Pawan Chetri* & Gazi A. Ahmed, Eu-doped SnO2 nanosystems from first principles: investigation of structural and electronic properties at different doping positions, EPJB, 95,199, 2022.
  7. Nishant Shukla, Pawan Chetri & Gazi A. Ahmed, A Newly Developed Dispersive Interaction Approach, DFT-D3, to the Three-Dimensional Topological Host Material Sb2Te3, Materials Science Forum (Vol. 1065, pp. 195–202). Trans Tech Publications, 2022.
  8. Nishant Shukla, Pawan Chetri* & Gazi A. Ahmed, Preparation and characteristic analysis of carbon coated nanoscale SnO2 system: an integrated experimental and first principles approach, Phys. Scr. 97 075818, 2022.
  9. TK Baishya, B. Bora, U. Gogoi and P. Chetri Structural Study of TiO2 Crystal: A Chemical Graph Theory Based Investigation, Trends in Sciences, 19(2), 2022.
  10. N Shukla, P Chetri*, GA Ahmed, Structural, optical and magnetic study of Eu2+ doped SnO2 nanosystems: an experimental and DFT based investigation, Journal of Materials Science, 1-15, 2021.
  11. P Chetri*, B Bora, TK Baishya, Molecular graph theory-based study on Lin cluster: a correlation between physical property and topological descriptors, Bulletin of Materials Science 44 (3), 1-7, 2021.
  12. G Bortamuly, P Chetri, S Bardaloi, Effect of Lead (Pb) Concentrations on Structural & Optical Properties of PbS Thin Films, Indian Journal of Pure & Applied Physics (IJPAP) 59 (6), 447-451, 2022.
  13. D. Kalita, L. Chetia, P. Chetri, G.A. Ahmed, Investigation of structural and luminescence properties of nanocrystalline tungsten-incorporated molybdenum disulphide ternary compounds: an experimental and DFT study, Bull. Mater. Sci. (2019) 42,134.
  14. Susmita Paul, Pawan Chetri, Biswajit Choudhury, Gazi Ameen Ahmed and Amarjyoti Choudhury, Enhanced visible light photocatalytic activity of Gadolinium doped nanocrystalline titania: An experimental and theoretical study, Journal of Colloid and Interface Science 439, 54-61, 2015.
  15. Pawan Chetri* and Amarjyoti Choudhury, Investigation of structural and magnetic properties of nanoscale Cu doped SnO2: An Experimental and Density Functional Study, J. Alloys & Compounds, 627,261-267, 2015.
  16. Pawan Chetri*, Priyanka Basyach and Amarjyoti Choudhury, Daylight photocatalytic activity of TiO2/ SnO2 core/shell nanostructures: An experimental and density functional study, AIP Conference Proceedings,1591, 351 (2014) (ISBN 978-0-7354-1225-5).
  17. Susmita Paul, Pawan Chetri, Amarjyoti Choudhury, Effect of manganese doping on the optical property and photocatalytic activity of nanocrystalline titania: Experimental and theoretical investigation, Journal of Alloys and Compounds 583, 578-586, 2014.
  18. Biswajit Choudhury, Pawan Chetri and Amarjyoti Choudhury, Oxygen defects and formation of Ce3+affecting the photocatalytic performance of CeO2 nanoparticles, RSC Adv.4, 4663-4671, 2014.
  19. Pawan Chetri*, Priyanka Basyach, Amarjyoti Choudhury, Exploring the Structural and Magnetic Properties of TiO2/SnO2 core/shell nanocomposite: An experimental and Density Functional Study, Journal of Solid State Chemistry 220,124-131, 2014.
  20. Pawan Chetri*, Priyanka Basyach and Amarjyoti Choudhury, Structural, optical and photocatalytic properties of TiO2/SnO2 and SnO2/TiO2 core–shell nanocomposites: An experimental and DFT investigation, Chemical Physics 434, 1-10, 2014.
  21. Pawan Chetri, Biswajit Choudhury, Amarjyoti Choudhury, Room temperature ferromagnetism in SnO2 nanoparticles: An experimental and Density Functional study, J. Mater. Chem. C 2, 9294-9302, 2014.
  22. Biswajit Choudhury, Pawan Chetri & Amarjyoti Choudhury, Annealing temperature and oxygen- vacancy- dependent variation of lattice strain, band gap and luminescence properties of CeO2 nanoparticles, Journal of Experimental Nanoscience 10, 103-114, 2013.
  23. Pawan Chetri, Ramesh Ch. Deka, Amarjyoti Choudhury, Structural and electronic properties of stable Lin (n= 2–10) clusters: A density functional study, Physica B, 430, 74-80, 2013.
  24. Pawan Chetri*, Bhamyarswa Saikia, and Amarjyoti Choudhury, Structural and optical properties of Cu doped SnO2 nanoparticles: An experimental and density functional study, J. Appl. Phys. 113, 233514 (1-8), 2013.
  25. Pawan Chetri and Amarjyoti Choudhury, Investigation of optical properties of SnO2 nanoparticles, Physica E, 47, 257-263, 2013.
Patent Published/Granted
  1. A NON-TOXIC NANOPHOTOCATALYST (Published; Application No-202331044106, Dated: 2023-06-30).
  2. AN IMPROVED BIODEGRADABLE SANITARY PAD AND THE METHOD OF ITS MANUFACTURE (Published; Application No-202431098455, Dated: 2024-12-12).