CURRICULUM VITAE Dr. RABINDRA NATH GAYEN Assistant Professor Department of Physics Presidency University 86/1 College Street Kolkata - 700073. e-mail: [email protected] [email protected] Web page:- https://presiuniv.ac.in/web/staff.php?staffid=36 RESEARCH INTEREST: • Optoelectronic Materials: o Synthesis and Characterization of various inorganic Nanoparticles, Nanorods and Nanowires and their use in different Device applications. o ZnO and GaN, homojunction, heterojunction and Schottky diode in nanocrystalline thin film form; Photovoltaic Devices; Light Emitting Diodes (LED); Field Effect Transistor (FET). o Gas sensor. o Thin film solar cells o Ferroelectric thin films o Graphene Oxide-Metal Oxide nanocomposites for optoelectronic applications ⚫ Schottky diode; p-n junction diode; Application of Nanostructures in Solar cell and optoelectronic devices. ⚫ Photoluminescence; Raman spectroscopy ⚫ Diamond like carbon (DLC) thin films and Carbon nano tubes (CNT) for various application EDUCATION: Ph.D. in Material Science (2010) from Jadavpur University*, India Masters of Science in Physics (2006) from Jadavpur University, India Specialization: Condensed matter physics. Bachelor of Science in Physics (2004) from Jadavpur University, India 1 * Department of Instrumentation Science, USIC Building, Jadavpur University, Kolkata, 700032, India THESIS: “Oxide Semiconductors in Thin Film Form for Device Applications” PREVIOUS POSITION: Post-Doctoral Research Associate at S N Bose National Center for Basic Sciences, Kolkata, 2012. PRESENT POSITION (August, 2012-Continuing) Assistant Professor Department of Physics Presidency University 86/1 College Street Kolkata - 700073. ACADEMIC AWARDS: • Qualified National Eligibility Test (NET) Examination, Gov. of India (2006). • Qualified Graduate Aptitude Test for Engineering (GATE) Examination, Gov. of India (2006). • Awarded Junior and Senior Research Fellowship by University Grants Commissions, Government of India. • Best Poster Award, Symposium on “Current Trends in Nano Science and Technology”, ABVIIITM, Gwalior, India. • Second Best Poster Award, National Seminar on “Recent Advances in Materials’ Sciences”, Dept. of Physics, I.S.M. University, Dhanbad, India. TEACHING EXPERIENCES: I have taught following UG and PG courses at Presidency University: Condensed Matter Physics (PG SEM II) Electrostatics & Magnetostatics (UG, SEM II) Condensed Matter Physics Special Lab- (PG, SEM IV) UG Major Practical-- Digital Electronics (SEM IV) Advanced Condensed Matter Physics- (PG, SEM III) Advanced Electronics (UG SEM VI) 2 UG Major Lab: Mechanics, Solid state physics, electronics, optics (SEM I, SEM II, SEM V, SEM VI) STUDENT SUPERVISION: Following students are presently working under my supervision: 1. Mrinmoy Chakraborty - Junior Research Fellow 2. Eheta Samul Kadir- Junior Research Fellow Supervised Project works of the following MSc Students: 1. Snehasish Das (2020)- Thesis: “Fabrication of CuO thin-film for solar cell applications” 2. Saurajit Das (2020)- Thesis: “Nanostructured Oxide Semiconductor Thin Film for Application in Dye Sensitized Solar Cell” 3. Rounak Banerjee (2019)- Thesis: "Zinc Oxide-Graphene Oxide nanocomposite thin films as active layer in solar cell applications" 4. Sirajum Munira (2019)- Thesis: " Micromagnetic study of magnetization reversal in nanoscale ferromagnets" 5. Soumyodeep Banerjee (2018)- Thesis: "DESIGNING ORGANIC-INORGANIC LEAD FREE PEROVSKITE MATERIAL ACTIVE LAYER FOR SOLAR CELL APPLICATION" 6. Tanwistha Chakraborty (2017)- Thesis: "FABRICATION AND CHARACTERIZATION OF ZINC OXIDE NANOWIRE BASED CZTS THIN FILM SOLAR CELLS" 7. Zinia Mallik (2017)- Thesis: "FABRICATION OF ZnO NANOWIRE BASED DYE SENSITIZED SOLAR CELL (DSSC)" 8. Papiya Mandal (2016)- Thesis: "FABRICATION OF CZTS THIN FILMS FOR SOLAR CELL ABSORBER LAYER" 9. Prerna Sharma (2015)- Thesis: "FABRICATION OF NANOCRYSTALLINE ZNO:Mn THIN FILMS BY SOL-GEL SPIN COATING FOR DEVICE APPLICATIONS" 10. Bodhisattwa Swar (2014)- Thesis: "SYNTHESIS AND MICROSTRUCTURAL STUDY OF VERTICALLY ALIGNED ZnO NANORODS" 11. Neelanjan Bhattacharjee (2014)- Thesis:" OPTICAL PROPERTIES OF ZnO NANORODS SYNTHESIZED BY CHEMICAL ROUTE" 12. Shibsankar Dutta (2013)- Thesis: "PVDF FILMS FOR PIEZOELECTRIC APPLICATION" 13. Pintu Polley (2013)- Thesis: "PVDF FREE STANDING FILMS :SYNTHESIS AND CHARACTERIZATION" 3 PUBLICATIONS: • National & International Journals/book chapters : 35 • National & International Conference : 05 TECHNICAL SKILLS: Thin film deposition: RF plasma CVD. Sputtering (DC and RF magnetron); Evaporation (Thermal, E- beam and Flash). Pulsed Laser deposition Hybrid wet chemical route, electro deposition, chemical bath deposition (CBD) etc. Analytical: SEM, Photoluminescence (PL) (8 K), AFM, FTIR, RAMAN measurements, XRD, I-V and C-V, Field Emission, UV-VIS- NIR spectrophotometer, TEM, EDAX, XPS, Four probe electric and magnetic measurements (variable temperature), VSM, Static-MOKE etc. PROJECT DETAILS: PROJECT#1 Project Title: Solution-processed nanostructured superstrate CZTS solar cells Role of the Faculty Member: PI Funding Agency: DST under the scheme 'Start Up Research Grant (Young Scientists)' Amount of Funding: Rs. 22,20,000.00 (2015-2018) PROJECT#2 Project Title: Development of nanostructured composite photo-electrode for dye- sensitized solar cells Role of the Faculty Member: PI Funding Agency: Department of Higher Education, Science & Technology and Biotechnology, Government of West Bengal Amount of Funding: Rs. 13,91,400.00 (2018-2021) PUBLICATIONS IN DETAILS: • Papers in Referred Journals: 4 [1] R N Gayen, R Paul, S Biswas, “Schottky Enabled Enhanced UV Detection by Graphene Oxide Composited Transparent ZnO Thin Films”, Applied Surface Science 533 (2020) 147149. (Impact Factor – 6.182) [2] E S Kadir, R N Gayen, R Paul, S Biswas, “Interfacial effects on ferroelectric and dielectric properties of GO reinforced free-standing and flexible PVDF/ZnO composite membranes: Bias dependent impedance spectroscopy”, Journal of Alloys and Compounds, 843 (2020) 155974. (Impact Factor – 4.65) [3] S R Bhattacharyya, Z Mallick, R N Gayen, “Vertically Aligned Al-Doped ZnO Nanowire Arrays as Efficient Photoanode for Dye-Sensitized Solar Cells”, Journal of Electronic Materials, 49 (2020) 3860. (Impact Factor – 1.774) [4] M K Sharma, R N Gayen, A K Pal, D Kanjilal, Ratnamala Chatterjee, “Single phase formation of Fe-doped directional ZnO nanorod films: Study of cluster formation by complex impedance spectroscopy and removal of metal clustering by swift heavy ion irradiation”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 467 (2020) 73-79. (Impact Factor – 1.27) [5] R N Gayen, Tanwistha chakraborti, “Effect of series and shunt resistance on the photovoltaic properties of solution-processed zinc oxide nanowire based CZTS solar cell in superstrate configuration”, Materials Science in Semiconductor Processing 100 (2019) 1-7. (Impact Factor – 2.722) [6] Soumyodeep Banerjee, R N Gayen, “Tetramethylammonium based lead free perovskite active layer for solar cell application”, Ceramics Internationals, (2019) In Press, https://doi.org/10.1016/j.ceramint.2019.05.304 (Impact Factor – 3.450) [7] S R Bhattacharyya, R N Gayen, Fabrication and characterization of transparent nanocrystalline ZnO thin film transistors by sol-gel technique, Bulletin of Materials science 42 (2019) 167. (Impact Factor – 1.264) [8] S K Das, D Dutta, S Naskar, S Palchaudhury, R N Gayen, A Dey, “Revisiting the physiology of ascent of sap in plants: legendary experiment of J. C. Bose.”, CURRENT SCIENCE, 115, NO. 8, 25 OCTOBER 2018. (Impact Factor – 0.756) [9] Ayantika Khanra, RN Gayen, “Distribution of relaxation time in solution-processed polycrystalline CZTS thin films: Study of impedance spectroscopy”, Ceramics International, Volume 44, Issue 12, 15 August 2018, Pages 14095-14100. (Impact Factor- 3.450) [10] R N Gayen and R Paul, "Fabrication of vertically aligned Phosphorous doped ZnO nanowires" Nano Structures and Nano Objects, 13 (2018) 163. DOI: 10.1016/j.nanoso.2016.03.007 5 [11] R N Gayen and P Laha, "Single step synthesis and optical properties of Fe-Ag bimetallic nanoparticles", Journal of Nanoscience and Nanotechnology, 17(1) (2017) 666 (Impact Factor- 1.556). [12] R. Paul, R. N. Gayen, S. Biswas, S. Venkataprasad Bhat, R. Bhunia, " Enhanced UV detection by transparent graphene-oxide/ZnO composite thin films" RSC Advances, 6 (66) (2016) 61661. (Impact Factor - 3.298) [13] R N Gayen and S R Bhattacharyya, "Electrical Characteristics and Rectification performance of wet chemically synthesized vertically aligned n-ZnO nanowire/p-Si Heterojunction” Journal of Physics D: Applied Physics, 49 (2016) 115102 (Impact Factor - 2.772) [14] R N Gayen and R Paul, "Nanocrystalline Zn1-xMnxO thin film based transparent Schottky diodes" Thin Solid Films, 605 (2016) 248-256 (Impact Factor- 1.759) [15] R N Gayen, S R Bhattacharyya and P Jana; "Temperature dependent current transport of Pd/ZnO nanowire Schottky diodes" Semicond. Sci. Technol. 29 (2014) 095022. (Impact Factor- 2.190) [16] R.N.Gayen, S. Hussain, D. Ghosh, R. Bhar, A.K. Pal “Two-source coevaporation technique for synthesis of indium phosphide films with controlled composition” Journal of Alloys and Compounds, 531 (2012) 34-40 (Impact Factor- 2.999) [17] R. N. Gayen, S. Hussain, R. Bhar and A.K.Pal “Synthesis and characterization of Indium phosphide films prepared by co-evaporation technique”. Vacuum, 86 (2012) 1240. (Impact Factor- 1.858) [18]