Publications

Journals

• Venkanna Kanneboina and Pratima Agarwal"Role of hydrogen flow rate on microstructure of a-Si:H(n) films: Spectroscopic ellipsometry studies", Journal of Electronic Materials vol.48, no. , pp.2404-2410, [2019]

• Ramakrishna Madaka, Venkanna Kanneboina and Pratima Agarwal"Low-Temperature Growth of Amorphous Silicon Films and Direct Fabrication of Solar Cells on Flexible Polyimide and Photo-Paper Substrates", Journal of Electronic Materials vol.47, no. , pp.4710-4720, [2018]

• Ramakrishna Madaka, Venkanna Kanneboina and Pratima Agarwal"Enhanced performance of amorphous silicon solar cells (110°C) on flexible substrates with a-SiC:H(p) window layer and H2 plasma treatment at n/i and i/p interface", Semiconductor Science and Technology vol.33, no.8, pp.85009, [2018]

• Venkanna Kanneboina, Ramakrishna Madaka and Pratima Agarwal"High open circuit voltage c-Si/a-Si:H hetero junction solar cells: Influence of hydrogen plasma treatment studied by spectroscopic ellipsometry", Solar Energy vol.166, no. C, pp. 255-266, [2018]

• Venkanna Kanneboina, Ramakrishna Madaka and Pratima Agarwal"High open circuit voltage c-Si/a-Si:H hetero junction solar cells: Influence of hydrogen plasma treatment studied by spectroscopic ellipsometry", Solar Energy vol.166, no. C, pp. 255-266, [2018]

• Venkanna Kanneboina,Ramakrishna Madaka and Pratima Agarwal"Spectroscopic ellipsometrystudies on microstructure evolution of a-Si:H to nc-Si:H films by H2 plasmaexposure", Materials Today Communication vol.15, no.-, pp.18-19, [2018]

• Ramakrishna Madaka, Venkanna Kanneboina and Pratima Agarwal"Exploring the photo paper as flexible substrate for fabrication of a-Si:H based thin film solar cells at low temperature (110 °C): Influence of radio frequency power on opto-electronic properties", Thin Solid Films vol.662, no., pp.155-164 , [2018]

• Ramakrishna Madaka, Venkanna Kanneboina and Pratima Agarwal"Evolution of nanostructure in hydrogenated amorphous silicon thin films with substrate temperature studied by Raman mapping, Raman scattering and spectroscopic ellipsometry", Journal of materials Science: Materials in electronics vol., no. , pp.01-Oct, [2017]

• Asha Yadav and Pratima Agarwal"Density of states measurements in a-Si:H and a-Si:H/nc-Si:H multilayer structures prepared by hot wire chemical vapor deposition", Materials Science in Semiconductor Processing vol.61, no. , pp.05-Oct, [2017]

• Ramakrishna Madaka, Venkanna Kanneboina and Pratima Agarwal"Raman and spectroscopic ellipsometry studies of a-Si:H thin films on low-cost photo paper substrate", Materials Today Proceedings vol.4, no.14, pp.12666-12670, [2017]

• Venkanna Kanneboina, Ramakrishna Madaka and Pratima Agarwal"Influence of hydrogen plasma treatment of intrinsic a-Si:H layer on the performance of the c-Si/a-Si:Hhetro junction solar cells", Materials Today Proceedings vol.4, no.14, pp.12726-12729, [2017]

• Asha Yadav and Pratima Agarwal"Laser Induced Selective Crystallization of Amorphous Silicon Thin Film for Device Applications", Materials Today Proceedings vol.4, no.14, pp.12722-12725 , [2017]

• Mukesh Singh, Indrajeet Kumar, Alika Khare and Pratima Agarwal"Third order optical nonlinear studies on highly conducting vertically aligned carbon nanoflakes", Materials research express vol.3, no.12, pp.125005, [2016]

• Lalhrait Zuala and Pratima Agarwal"Thermal and structural studies of CdSe nanorods synthesized by solvothermal process", Physica Status Solidi-A vol.213, no.7, pp. 1885-1893, [2016]

• Mukesh Singh, Asha Yadav, Shailendra Kumar and Pratima Agarwal "Annealing induced electrical conduction and band gap variation in thermally reduced grapheme oxide films with different sp2/sp3 fraction", Applied Surface Science vol.326, no. , pp. 236-242, [2015]

• Himanhsu S. Jha, Asha Yadav, Mukesh Singh, Shailendra Kumar and Pratima Agarwal "Growth of wide-band gap nano-crystalline silicon carbide films by HWCVD: Influence of filament temperature on structural and optoelectronic properties", Journal of Electronic Materials vol.44, no. , pp.922-928, [2015]

• Himanhsu S. Jha and Pratima Agarwal "Effects of substrate temperature on structural and electrical properties of cubic silicon carbide films deposited by hot wire chemical vapor deposition technique", Journal of materials Science: Materials in Electronics vol.26, no. , pp.2844-2850, [2015]

• Himanhsu S. Jha and Pratima Agarwal "High crystalline silicon carbide thin films grown at low substrate temperature by HWCVD technique", Journal of materials Science: Materials in Electronics vol.26, no. , pp. 1381-1388, [2015]

• Asha Yadav and Pratima Agarwal"Persistent photoconductivity studies in a-Si:H/nc-Si:H thin film superlattices", Superlattices and Microstructures vol.85, no., pp.776, [2015]

• Lalhriatzuala and Pratima Agarwal"Studies on Spin Orbit Splitting and Dual Mode Phonon Vibrations in ZnSxSe1−x Ternary Alloys Films with Varying Se Concentration", Journal of Electronic materials vol.44, no., pp.3341-3353, [2015]

• Lalhriatzuala and Pratima Agarwal"Effect of Se concentration on mixed phonon modes and spin orbit splitting in thermally evaporated CdSxSe1-x (0 ≤ x ≤ 1) films using CdS-CdSe nano-composites", Materials Chemistry and Physics vol.162, no. , pp.813-821, [2015]

• Mukesh Singh, Himanhsu S. Jha and Pratima Agarwal "Growth of large sp2 domain size single and multi-layer grapheme films at low substrate temperature using hot filament chemical vapor deposition", Materials Letters vol.126, no. , pp.249-252, [2014]

• Mukesh Singh, Himanshu S. Jha, Asha Yadav, Lalhriatzuala, Dinesh Deva and Pratima Agarwal "Fabrication of Two Dimensional Carbon Nanostructures using Hot Wire Chemical Vapor Deposition Technique", Proc. of SPIE vol.8549, no. , pp.854926, [2012]

• Purabi Gogoi, Himanshu S. Jha and Pratima Agarwal "Effect of Silane flow rate on microstructure of Silicon films deposited by HWCVD", Journal of Non-Crystalline Solids vol., no. , pp., [2012]

• Purabi Gogoi, Himanshu S. Jha and Pratima Agarwal "Variation of microstructure and transport properties with filament temperature of HWCVD prepared silicon thin films", Thin Solid Films vol.519, no. , pp.4506-4510, [2011]

• J. Anto Pradeep and Pratima Agarwal "Determination of thickness, refractive index, and spectral scattering of an inhomogeneous thin film with rough interfaces", J. Appl. Phys. vol.108, no. , pp.43515, [2010]

• Purabi Gogoi, Himanshu S. Jha and Pratima Agarwal "High band gap nano-crystallite embedded amorphous silicon prepared by hotwire chemical vapour deposition", Thin Solid Films vol.518, no. , pp.6818, [2010]

• Gouri Sankar Paul and Pratima Agarwal "Structural and thermal studies on PbS nanocubes", Physica Status Solidi vol.C7, no. , pp.905, [2010]

• Gouri Sankar Paul and Pratima Agarwal "Evolution of nanostructure with reaction time for ZnS synthesized by solvothermal process", Physica Status Solidi vol.C7, no. , pp.909, [2010]

• Purabi Gogoi, H.S. Jha, Dinesh Deva and Pratima Agarwal "Amorphous to nanocrystalline transition in HWCVD Si:H films by substrate temperature variation ", Physica Status Solidi vol.C7, no. , pp.592, [2010]

• Gouri Sankar Paul and Pratima Agarwal "Persistent Photocurrent and decay studies in cdS nanorods thin films", J. Appl. Phys. vol.106, no., pp.103705, [2009]

• P. Gogoi and P. Agarwal "Structural and optical studies on hot wire chemical vapour deposited hydrogenated silicon films at low substrate temperature", Solar Energy Materials and solar cells vol.93, no. , pp.199-205 , [2009]

• P. Gogoi, P.N.Dixit and P. Agarwal "Transport and stability studies on high band gap a-Si:H films prepared by argon dilution", PRAMANA-Journal of Physics vol.70(2), no. , pp.351-358, [2008]

• P. Gogoi, T. A. Ansari and P. Agarwal "Steady state photo carrier granting technique for measurement of charge carrier diffusion length", Indian Journal of Physics vol.82 (2), no. , pp.179-184, [2008]

• G. S. Paul, P.J. Sarmah, P.K. Iyer and P. Agarwal "Synthesis and study of CdS Nano-partice Doped Poly", Macromolecular Chemistry and Physics vol.209, no. , pp.417-423, [2008]

• J. Anto Pradeep and P. Agarwal "An alternative approach to understand the photoluminescence and the photoluminescence peak shift with excitation in porous silicon", Journal of Appiled Physics vol.104, no. , pp.123515(1-8), [2008]

• J. Anto Pradeep,P. Gogoi and P. Agarwal "Single and multilayer porous silicon structures for photonic applications", Journal of Non-Crystalline Solids vol.354, no. , pp.2544-2547 , [2008]

• G.S. Paul, P. Gogoi and P. Agarwal "Structural and stability studies of Cds and SnS nanostructures synthesized by various route", Journal of Non-Crystalline Solids vol.354, no. , pp.2195-2199, [2008]

• G.S. Paul and P. Agarwal "Optical and transport studies of Cds nanocomposites and synthesized by various route", Journal of Nanoscience and Nanotechnology vol.8, no. , pp.4188-4192, [2008]

• P. Gogoi, P.N. Dixit and P. Agarwal "Amorphous Silicon Films with high deposition rate prepared using argon and hydrogen diluted saline for stable solar cells", Solar Energy Materials and Solar Cells vol.91, no.13, pp.1253-1257, [2007]

• P. Agarwal , A. Srivastava and D. Deva"Changes in surface topography of amorphous silicon germanium films after light soaking", Journal of Applied Physics vol.101, no., pp.83504, [2007]

• Himanshu S. Jha, M. Singh, Asha Yadav, Lalhriatzuala, Dinesh Deva and Pratima Agarwal "Nanocrystalline cubic silicon carbide thin films for the window layer of solar cells deposited by hot wire CVD", Proc. of SPIE vol.8549, no. , pp. 85493D , [ ]

Conferences

• Asha Yadav and Pratima Agarwal"Visible photoluminescence in nc-Si:H/a-Si:H supperlattice structures prepared by PECVD technique", NCRANNT - 2016, North Eastern Hill University, Shillong, India vol.39, no. , pp. , [Sept. 8-9, 2016]

• Pilik Basumatary and Pratima Agarwal"Study of compact TiO2 layer for Perovskite solar cell", NCRANNT - 2016, North Eastern Hill University, Shillong, India vol.42, no. , pp. , [Sept. 8-9, 2016 ]

• Ramakrishna Madaka, Asha.Y, V. Kanneboina, Pilik Basumatary and Pratima Agarwal"Evolution of nanostructure in hydrogenated amorphous silicon thin films with substrate temperature studied by Raman mapping, Raman scattering and spectroscopic ellipsometry", UGC-SAP (DRSIII) sponsored National Seminar on Advanced Materials Science, Gauhati University vol.36, no. , pp., [March 24-25, 2017]

• Pilik Basumatary and Pratima Agarwal"Synthesis of uniform MAPbI3 thin film for large area Perovskite solar cells using thermal evaporation", UGC-SAP (DRSIII) sponsored National Seminar on Advanced Materials Science, Gauhati University vol.75, no. , pp. , [March 24-25, 2017 ]

• Study of Morphological Evolution In Hydrogenated Amorphous Silicon (a-Si:H) Thin Films By Atomic Force Microscopy Ramakrishna Madaka, Pilik Basumatary and Pratima Agarwal "Study of Morphological Evolution In Hydrogenated Amorphous Silicon (a-Si:H) Thin Films By Atomic Force Microscopy", UGC-SAP (DRS II) sponsored National Conference on Hard and Soft Condensed Matter Physics, Tezpur university, Tezpur, Assam, India vol.79, no. , pp. , [March 2-4, 2017]

• Ramakrishna Madaka, V. Kanneboina and Pratima Agarwal"Hydrogenated amorphous silicon (a-Si:H) thin film solar cells on flexible substrates", Research Conclave-2017, IIT Guwahati, Guwahati, India vol.216, no. , pp. , [March 16-19, 2017]

• V. Kanneboina, Ramakrishna Madaka and Pratima Agarwal"Influence of hydrogen plasma treatment on the performance of c-Si/a-Si:H heterojunction solar cells", Research Conclave-2017, IIT Guwahati, Guwahati, India vol.223, no. , pp. , [March 16-19, 2017 ]

• Ramakrishna Madaka, V. Kanneboina and Pratima Agarwal"Hydrogenated amorphous silicon solar cells on low cost photo paper and flexible substrates", Annual Physics meet, 2nd department day Physics, IIT Guwahati vol., no. , pp. , [Jan. 28, 2017]

• V. Kanneboina, Ramakrishna Madaka and Pratima Agarwal "Hydrogen plasma treatment on the performance of c-Si/a-Si:H heterojunction solar cells", Annual Physics meet, 2nd department day, Physics, IIT Guwahati vol., no. , pp. , [Jan. 28, 2017 ]

• Ramakrishna Madaka, V. Kanneboina and Pratima Agarwal"Hydrogenated amorphous silicon solar cells on low cost photo paper", 2nd International Conference on Solar Energy Photovoltaic, KIIT university, Bhubneswar, India vol.19, no. , pp. , [Dec. 17-19, 2016]

• Manvendra Singh Gangwar and Pratima Agarwal"Growth study of metallic nanoparticles on different substrates for light trapping in thin film solar cells", 2nd National Conference on , Hard and Soft Condensed Matter Physics, Department of Physics, Tezpur University, Assam, Mar. 04-06, 2019 vol., no. , pp. , [2019]

• Manvendra Singh Gangwar and Pratima Agarwal"Synthesis of metallic nanoparticles on different substrates to study their effects in thin film solar cells for light trapping applications", Research Conclave 2019, Indian Institute of Technology, Guwahati, India, Mar.14-17, 2019 vol., no. , pp. , [2019]

• Juhi Kumari, Vivek Ghritlahre and Pratima Agarwal"Fabrication of MoSe2 and ZnO: Al based heterojunction structure", AIP Conference Proceeding International Conference on Renewable & Alternate Energy (ICRAE-2018) vol., no., pp.020014-1--020015-7, [2019]

• Niharika Gogoi, Jai Shree Bharadwaj and Pratima Agarwal"Study of laser induced micro-structural changes in reduced graphene oxide", AIP Conference Proceeding International Conference on Renewable & Alternate Energy (ICRAE-2018) vol., no., pp.020023-1--020023-7, [2019]

• Asha Yadav, Pratima Agarwal and Rana Biswas"Tuneable Visible Photoluminescence in a-Si:H/nc-Si:H Superlattices", 28th International Conference on Amorphous and Nano-crystalline Semiconductors (ICANS28), Aug 04-09, 2019, Palaiseau, France vol., no., pp., [2019]

• Venkanna Kanneboina, Ramakrishna Madaka and Pratima Agarwal"Growth Kinetics of H2 Plasma Subjected a-Si:H Films: AFM Surface Morphology Studies", 28th International Conference on Amorphous and Nano-crystalline Semiconductors (ICANS28), Aug 04-09, 2019, Palaiseau, France vol., no., pp., [2019]

• Manvendra Singh Gangwar, Ankit Kumar Singh and Pratima Agarwal"Synthesis and Characterization of metallic nanoparticles on different substrates for light trapping applications in Thin film ssolar cells", International Conference on Condensed Matter and Applied Physics (ICC-2019), Oct 14-15, 2019 GEC, Bikaner vol., no., pp., [2019]

• Jaishree Bhardwaj, Pilik Basmatary, Ankit Kumar Singh and Pratima Agarwal"Comparative study of Chemically and thermally reduced Graphene oxide based on their Specific area, structural and electrical properties", International Conference on Condensed Matter and Applied Physics (ICC-2019), Oct 14-15, 2019 GEC, Bikaner vol., no., pp., [2019]

• Ankit Kumar Singh, Jai Shree Bhardwaj and Pratima Agarwal"Study of Structural and Electronic Properties of MoS2 thin film for Diode Structure Al/MoS2/p-Si/Al", International Conference on Condensed Matter and Applied Physics (ICC-2019), Oct 14-15, 2019 GEC, Bikaner vol., no., pp., [2019]

• Venkanna Kanneboina and Pratima Agarwal"Single side c-Si/a-Si:H heterojunction solar cells with high open circuit voltage of 705 mV and 17.3% efficiency: Role of a-Si:H(p) layer doping and thickness", 3rd International Conference on Solar Energy Photovoltaic (ICSEP-2019), Dec 19-21, 2019, KIIT Bhubaneswar vol., no., pp., [2019]

• Juhi Kumari, Pilik Basumatary, Manvendra Singh Gangwar and Pratima Agarwal"Molybdenum trioxide as an emitter layer in Silicon based heterojunction solar cells", 3rd International Conference on Solar Energy Photovoltaic (ICSEP-2019), Dec 19-21, 2019, KIIT Bhubaneswar vol., no., pp., [2019]

• Pilik Basumatary and Pratima Agarwal"Charge Carrier Dynamics in CH3NH3PbI3 Perovskite Thin Film", 3rd International Conference on Solar Energy Photovoltaic (ICSEP-2019), Dec 19-21, 2019, KIIT Bhubaneswar vol., no., pp., [2019]

• Ramakrishna Madaka, Juhi Kumari, Venkanna Kanneboina and Pratima Agarwal"Hydrogenated amorphous silicon solar cells fabricated at low substrate temperature 110°C on flexible PET substrate", AIP Conference Proceedings vol., no. , pp.100040-1-4, [2018]

• Mukesh Singh, Himanshu S. Jha and Pratima Agarwal"Synthesis of vertically aligned carbon nanoflakes by hot wire chemical vapour deposition: influence of process pressure and substrate temperature", 10th international conference on “Hot Wire (Cat) & Initiated Chemical Vapour Deposition”. Sept. 03-06, 2018 Kitakyushu International Conference Centre, Japan. vol., no. , pp., [2018]

• R. Madaka, J. Kumari, V. Kanneboina, H.S. Jha and P. Agarwal"Role of chamber pressure on crystallinity and composition of silicon films using silane and methane as precursors in HWCVD technique", 10th international conference on “Hot Wire (Cat) & Initiated Chemical Vapour Deposition”. Sept. 03-06, 2018 Kitakyushu International Conference Centre, Japan. vol., no. , pp. , [2018]

• H.S. Jha and P. Agarwal"Growth of highly nanocrystalline cubic silicon carbide (3C-SiC) thin films prepared by hot wire chemical vapour deposition technique", 10th international conference on “Hot Wire (Cat) & Initiated Chemical Vapour Deposition”. Sept. 03-06, 2018 Kitakyushu International Conference Centre, Japan. vol., no. , pp. , [2018]

• Shubhangi Bhardwaj, Pilik Basumatary, Venkanna Kanneboina and Pratima Agarwal"Influence of Process Pressure on Structural and Optical Properties of TiO2 Thin Films Deposited by RF Sputtering", Materials & Technologies for Energy Conversion and Storage”, Sept. 26-29, 2018 DAE Convention Centre, Mumbai vol., no. , pp. , [2018]

• Venkanna Kanneboina, Pilik Basumatary and Pratima Agarwal"Influence of Deposition Temperature on Indium Tin Oxide Thin Films for Solar Cell Applications", International Conference on Renewable and Alternate Energy (ICARE-2018)”, Dec. 04-06, 2018 Assam Science and Technology University. vol., no. , pp. , [2018]

• Venkanna Kanneboina, Ramakrishna Madaka and Pratima Agarwal"High open circuit voltage c-Si/a-Si:Hheterojunction solar cells with hydrogen plasma treatment (ID: OP06)", Research conclave, IIT Guwahati, India March 08 -11, 2018 vol., no. , pp., [2018]

• Ramakrishna Madaka, Venkann Kanneboina and Pratima Agarwal"Hydrogenated amorphous silicon based thin film solar cells on low cost photo paper and polyimide sheets (ID: P027)", Research conclave, IIT Guwahati, India March 08 -11, 2018 vol., no. , pp. , [2018]

• Venkanna Kanneboina, Pilik Basumatary Ramakrishna Madaka and Pratima Agarwal"Spectroscopic Ellipsometry Investigation of Optical and Structural Properties of a-Si:H Thin Films (Abs Id: 20)", International conference on �energy options tomorrow: Technology to sustainability�, The Neotia University, Kolkata, India, April 17-19, 2017 vol., no. , pp. 43-43, [2017]

• Ramakrishna Madaka, Venkann Kanneboina and Pratima Agarwal"Raman mapping and Raman scattering studies to understand the Evolution of nanostructure in a-Si:H films deposited at different temperature (ID: PP68)", International Conference on Sophisticated Instruments in Modern Research (ICSIMR-2017), Central instrument facility, IIT Guwahati, Guwahati, India, June 30 - July 01, 2017 vol., no. , pp.129-130, [2017]

• Venkanna Kanneboina, Ramakrishna Madaka and Pratima Agarwal"Spectroscopic ellipsometry investigation of hydrogenated amorphous and nano crystalline silicon thin films (Abs Id: PP82)", International Conference on Sophisticated Instruments in Modern Research (ICSIMR-2017), Central instrument facility, IIT Guwahati, Guwahati, India, June 30 - July 01, 2017 vol., no. , pp.144-144, [2017]

• Ramakrishna Madaka, Juhi Kumari, Venkanna Kanneboina and Pratima Agarwal"Hydrogenated amorphous silicon solar cells fabricated at low substrate temperature 110�C on flexible PET substrate (ID: H-0060)", 2nd International conference on Condensed matter and applied Physics (ICC-2017) Nov. 24-25, 2017 vol., no. , pp.871-871, [2017]

• Ramakrishna Madaka, Pilik Basumatary, Venkanna Kanneboina and Pratima Agarwal"Amorphous silicon thin film solar cells fabricated on different substrates (ID: ABS_R9798)", 19th International workshop in the Physics of semiconductor devices (IWPSD-2017) Dec. 11-15, 2017 vol., no. , pp.01-Mar, [2017]

• Venkanna Kanneboina, Ramakrishna Madaka and Pratima Agarwal"Hydrogen Plasma Treatment Induced crystallinity in a-Si:H Films Studied by Ellipsometry and Raman Spectroscopy (Abs Id: OP024)", National Workshop on Fluorescence and Raman Spectroscopy,Dec. 17-21, 2017 vol., no. , pp.136-136, [2017]

• Ramakrishna Madaka, Venkann Kanneboina and Pratima Agarwal"Nanostructure in a-Si:H films: Raman mapping and Raman scattering studies, National work shop on Fluorescence and Raman spectroscopy (ID: P057)", National Workshop on Fluorescence and Raman Spectroscopy,Dec. 17-21, 2017 vol., no. , pp.100-100, [2017]

• V.Kanneboina, Ramakrishna Madaka and Pratima Agarwal"Low temperature rf sputtered ITO thin films as TCO for solar cells", Research Conclave�16, IIT Guwahati vol., no. , pp. , [2016]

• Ramakrishna Madaka,V. Kanneboina and Pratima Agarwal"Hydrogenated amorphous silicon based thin film solar cells on flexible solar cells", Research Conclave�16, IIT Guwahati vol., no. , pp. , [2016]

• Lalhriatzuala and Pratima Agarwal"Thermal and Structural Studies of CdSe nanorods synthesized by solvothermal process", International Conference on Amorphous and Nano-crystalline Semiconductors (ICANS26), Aachen, Germany vol.194, no. , pp. , [2015]

• A. Yadav and Pratima Agarwal"Persistent photoconductivity studies in a-Si:H/nc-Si:H thin film superlattices", ICANS26, Aachen, Germany vol., no. , pp.144, [2015]

• H. Jha, A.Yadav, M. Singh, S. Kumar and Pratima Agarwal"X-ray Photoelectron Spectroscopy studies on cubic silicon carbide thin films prepared by HWCVD", ICANS26, Aachen, Germany vol., no. , pp.157, [2015]

• M. Singh and Pratima Agarwal"Variable range Hopping conduction in thermally reduced graphen oxide thin films", ICANS26, Aachen, Germany vol., no. , pp.148, [2015]

• V. Kanneboina, Ramakrishna Madaka, Lalhriatzuala and Pratima Agarwal"Spectroscopic ellipsometry studies on a-Si:H thin films deposited with electrode distance variation", International workshop on Physics of Semiconductor Devices (IWPSD), IISc vol.357, no. , pp., [2015]

• Ramakrishna Madaka, V. Kanneboina and Pratima Agarwal"Hydrogenated amorphous and nanocrystalline silicon thin films deposited on paper substrate by rf-PECVD technique", 4th International Conference on Advanced nanomaterials and Nanotechnology (ICANN), IIT Guwahati vol.32, no. , pp. , [2015]

• V.Kanneboina, Ramakrishna Madaka, Mukesh Singh and Pratima Agarwal"Effect of substrate temperature on structural and optical properties of RF sputtered ITO thin films for solar cell applications", 4th International Conference on Advanced nanomaterials and Nanotechnology (ICANN), IIT Guwahati vol.32, no. , pp. , [2015]

• V.Kanneboina, Ramakrishna Madaka, Mukesh Singh and Pratima Agarwal"Spectroscopic ellipsometry investigation of optical and structural properties of a-Si:H thin films", International Conference on Nanoscience, Nanotechnology and Advanced Materials, GITAM University vol.71, no. , pp. , [2015]

• Ramakrishna Madaka, Asha Yadav, Venkanna Kanneboina and Pratima Agarwal "Elecctrical and structural properties of a-Si:H on flexible substrates", The Annual Chemical Engineering Symposium, Reflux 2015, IIT Guwahati, Guwahati, India vol., no. , pp.56, [2015]

• Mukesh Singh, Shailendra Kumar and Pratima Agarwal "Compositional and structural changes in reduce graphene oxide films using XPS and UV-PES. (Invited Paper) ", 59th DAE, Solid State Physics Symposium, VIT University, Vellore, India vol., no. , pp.42, [2014]

• Asha Yadav, Mukesh Singh and Pratima Agarwal "a-Si:H/nc-Si:H thin film super lattice by Hot Wire Chemical Vapor Deposition", International Conference on Recent Advances in Nanoscience and Nanotecnology, ICRANN 2014, JNU, New Delhi, India vol., no. , pp.114, [2014]

• Mukesh Singh, Asha Yadav and Pratima Agarwal "Transition from 3D to 2D Mott variable range hopping conduction in reduced graphene oxide thin films", International Conference on Recent Advances in Nanoscience and Nanotecnology, ICRANN 2014, JNU, New Delhi, India vol., no. , pp.28, [2014]

• Ramakrishna Madaka, Asha Yadav, Venkanna Kanneboina and Pratima Agarwal "Comparision of electrical conductivity of a-Si:H films deposited on flexible polyimide and corning glass substrate", Transport properties in low dimensional Systems: Experiment and Simulation, TransLES 2014, IASST, Guwahati, India vol., no. , pp.102, [2014]

• Asha Yadav, Mukesh Singh and Pratima Agarwal "Influence of hydrogen dilution on structural, electrical and optical properties of silicon thin films by HWCVD technique", Transport properties in low dimensional Systems: Experiment and Simulation, TransLES 2014, IASST, Guwahati, India vol., no. , pp.53, [2014]

• Asha Yadav, Mukesh Singh and Pratima Agarwal "Laser induced crystallinity in amorphous silicon thin film", Emerging Materials: Characterization and Application, EMCA 2014, NIT Durgapur & CGCRI Kolkata, India vol., no. , pp.77, [2014]

• Mukesh Singh, Suman Sarkar and Pratima Agarwal "Ammonia and nitrogen dioxide gas sensor using reduced grapheme oxide", Emerging Materials: Characterization and Application, EMCA 2014, NIT Durgapur & CGCRI Kolkata, India vol., no. , pp.122, [2014]

• Mukesh Singh, Himanshu S. Jha, Asha Yadav and Pratima Agarwal "Study of the Growth of Graphene Film on Ni and Si Substrates by Hot Filament Chemical Vapor Deposition", International conference on Recent Trends in Applied Physics and Material Science, RAM 2013, Bikaner vol., no. , pp. , [2013]

• Pratima Agarwal "Recent Advances in Thin Film Silicon Solar Cells", International Seminar and Workshop on Energy Sustainability and Development, Sibsagar College vol., no. , pp. , [2012]

• Mukesh Singh, Himanshu S. Jha and Pratima Agarwal "Synthesis of High Density Nucleation of Nano-Crystalline Diamond Films on Non Carbon Affinity Substrates", CCM 2012, BARC Mumbai vol., no. , pp. , [2012]

• Lalhriatzuala and Pratima Agarwal "Study on the growth process and transport properties of ZnSe nanocrystalline particles synthesized using solvothermal reaction", Twenty-First International Symposium on Processing and Fabrication of Advanced Materials PFAM-21 vol., no. , pp. , [2012]

• Lalhriatzuala, Ramakrishna Madaka and Pratima Agarwal "Structural, optical and electrical characterization of CdSe nanorods synthesized by Solvothermal process", International Conference on Solar Energy Photovoltaic -2012, KIIT University, Bhubaneswar vol., no. , pp. , [2012]

• Himanshu S. Jha, Asha Yadav, Mukesh Singh, Ramakrishna Madaka and Pratima Agarwal "Hydrogenated nanocrystalline silicon films prepared at high deposition rate", International Conference on Solar Energy Photovoltaic -2012, KIIT University, Bhubaneswar vol., no. , pp. , [2012]

• Himanshu S. Jha, Asha Yadav, Mukesh Singh, Ramakrishna Madaka and Pratima Agarwal "Highly transparent nanocrystalline Silicon Carbide thin films prepared by hot wire chemical vapor deposition technique", International Conference on Solar Energy Photovoltaic -2012, KIIT University, Bhubaneswar vol., no. , pp. , [2012]

• Pratima Agarwal and J. Anto Pradeep"Photoluminescence and Photoluminescence excitation Spectroscopy studies on porous Silicon", Abstract Book, Conference on Photochemistry & Luminescence CPL-2012 vol., no. , pp.20, [2012]

• Lalhriatzuala and Pratima Agarwal "Structural and Optical studies of ZnSe Nanoparticles prepared using Solvothermal Process", Abstract Book, Conference on Photochemistry & Luminescence CPL-2012 vol., no. , pp.63, [2012]

• Lalhriatzuala and Pratima Agarwal "Preparation and characterization of ZnSe thin film for photovoltaic applications", International Seminar and Workshop on Energy Sustainability and Development, Sibsagar College vol., no. , pp., [2012]

• Purabi Gogoi, Himanshu S. Jha and Pratima Agarwal "Effct of Silane flow rate on Silicon films deposited by HWCVD", Abstract Book, 24th International conference on Amorphous and Nanocrystalline Semicondutors (ICANS 24),Nara Japan vol., no. , pp.261, [2011]

• Himanshu S. Jha, Barkha Awasthi, Dinesh Deva and Pratima Agarwal "Amorphous silicon films on Teflon substrates by PECVD and HWCV", Abstract Book, 24th International conference on Amorphous and Nanocrystalline Semicondutors (ICANS 24),Nara Japan vol., no. , pp.104, [2011]

• J Anto Pradeep and Pratima Agarwal "Refractive Index Calculation for Composites and Its Application in Fabricating Porous Silicon based Photonic Structures", Abstract Book, 24th International conference on Amorphous and Nanocrystalline Semicondutors (ICANS 24),Nara Japan vol., no. , pp.249, [2011]

• J Anto Pradeep and Pratima Agarwal "Optical Properties of Porous silicon", Abstract book,Condensed Matter Days 2011, Gauhati University vol., no. , pp.7, [2011]

• Himanshu S.Jha, Mukesh Singh, Lalhriatzuala, Asha Yadav and Pratima Agarwal "Structural Studies on Nanocrystalline Cubic Silicon Carbide Films deposited by Hot Wire CVD", Abstract book,Condensed Matter Days 2011, Gauhati University vol., no. , pp.84, [2011]

• Lalhraitzuala, Himanshu S. Jha, Mukesh Singh, Asha Yadav Anjani K. Maurya and Pratima Agarwal "Structural and Trabsport Studies of ZnS films prepared by Doctor Blade’s Technique", Abstract book,Condensed Matter Days 2011, Gauhati University vol., no. , pp.93, [2011]

• Pratima Agarwal "Adavnces in Thin Film Solar Cells: Challenges and Opportunities", International Congress on Renewable Energy, ICORE 2011,Tezpur University vol., no. , pp., [2011]

• Mukesh Singh, Himanshu S. Jha, Lalhriatzuala, Asha Yadav and Pratima Agarwal "Fabrication of two dimensional carbon nanostructure using hot wire chemical vapor deposition technique", Abstract Book,International Workshop on Physics of Semiconductor Devices (IWPSD 2011) vol., no. , pp.22, [2011]

• Himanshu S. Jha, Mukesh Singh, Asha Yadav and Pratima Agarwal "Nanocrystalline Cubic Silicon Carbide Thin Films for the Window Layer of Solar Cell Deposited by Hot Wire CVD", Abstract Book,International Workshop on Physics of Semiconductor Devices (IWPSD 2011) vol., no. , pp.61, [2011]

• J. Anto Pradeep and Pratima Agarwal "Fano Effect in Raman Scattering in Porous Silicon", Abstract Book,International Workshop on Physics of Semiconductor Devices (IWPSD 2011) vol., no. , pp.96, [2011]

• A T T Mostako, Partha Dey, Himanshu S Jha, Mukesh Singh, Pratima Agarwal and Alika Khare "Effect of background oxygen pressure and Substrate temperature on to the quality of MoO3 thin films via PLD", 24th International conference on Amorphous and Microcrystalline Semiconductors (ICANS24), Nara, Japan vol., no. , pp. , [2011]

• J. Anto Pradeep and Pratima Agarwal "Experimental determination of optical constants of Nanocompoiste thin films", International conference on advances in condensed and nano materials (ICACNM) Panjab University, Chandigarh vol., no. , pp. , [2011]

• Gouri Sankar paul and Pratima Agarwal "Structural, optical and thermal studies of CdS nanorods synthesized by solvothermal process", International Conference on Nano Science & Technology (ICONSAT), IIT Bombay, Mumbai, India vol., no. , pp.197, [2010]

• Purabi Gogoi, Himanshu S. Jha and Pratima Agarwal "Amorphous to Nanocrystalline transition of hydrogenated silicon films: Effect of silane flow rate", International Symposium on Photovolatic Science and Technology, IIT Kanpur vol., no. , pp., [2010]

• A. T. T. Mostako, Partha Dey, Himanshu S. Jha, Mukesh Singh, Pratima Agarwal and Alika Khare "Molybdenum Oxides thin films via PLD", Proceeding of National Conference Plasma 2010 organized by ISSAT (Guwahati) and PSSI (India) vol., no. , pp. , [2010]

• Purabi Gogoi, Himanshu S. Jha and Pratima Agarwal "Variation of microstructure and transport properties with filament temperature of HWCVD prepared silicon thin films", Sixth International conference on hot wire chemical vapor deposition (Cat-CVD) processes,Ecole Polytechnique, Palaiseau (Near Paris), France vol., no. , pp. , [2010]

• Himanshu S. Jha, Purabi Gogoi and Pratima Agarwal "Electrical transport and Space charge limited current measurements on hydrogenated silicon films in the amorphous to nanocrystalline range using HWCVD technique", Sixth International conference on hot wire chemical vapor deposition (Cat-CVD) processes,Ecole Polytechnique, Palaiseau (Near Paris), France vol., no. , pp. , [2010]

• Himanshu S. Jha, Purabi Gogoi, Mukes Singh and Pratima Agarwal "DoS Using SCLC measurements in hydrogenated Silicon Films", Proceedings of the 55th DAE Solid State Physics Symposium (2010),Manipal, India vol., no. , pp. , [2010]

• G.S. Paul and P.Agarwal "Structural and transport studies on nanostructured SnS synthesized by solvothermal process", American Physical Society March Meeting 2009, Pittsburgh, Pennsylvania, USA vol., no. , pp. , [2009]

• P. Gogoi, H.S. Jha and P.Agarwal "Nanocrystalline Silicon films by HWCVD method", American Physical Society March Meeting 2009, Pittsburgh, Pennsylvania, USA vol., no. , pp. , [2009]

• G.S. Paul and P.Agarwal "Transport and transient photocurrent studies of CdS nanorods thin flims for solar photovoltaic application RANSPORT", Proceeding of the Eighteenth International Photovoltaic Science and Engineering Conference and Exhibition (PVSEC18), Kolkata vol., no. , pp.169-170 , [2009]

• P. Gogoi, H.S. Jha and P.Agarwal "Nano-crystalline embedded amorphous silicon prepared by hotwire chemical vapour deposition ", Proceeding of the Eighteenth International Photovoltaic Science and Engineering Conference and Exhibition (PVSEC18), Kolkata vol., no. , pp.169-170 , [2009]

• Purabi Gogoi, Himanshu S. Jha and Pratima Agarwal "Amorphous to nanocrystalline transition in HWCVD silicon: Effect of filament temperature and gas flow rate", Proceedings of the 54th DAE Solid State Physics Symposium (2009), Vadodara, India vol., no. , pp.567, [2009]

• J. Anto Pradeep , M. Pandey, S.M. Sharma and Pratima Agarwal "Effect of anodization current density and wafer resistivity on the Raman scattering in porous silicon", Proceedings of the 54th DAE Solid State Physics Symposium (2009), Vadodara, India vol., no. , pp.723, [2009]

• P. Anand Kumar, P. Gogoi, H.S. Jha, D.M. Phase, S. Kumar and Pratima Agarwal "Photoelectron spectroscopy studies on Si:H films prepared by HWCVD", Proceedings of the 54th DAE Solid State Physics Symposium (2009), Vadodara, India vol., no. , pp.639, [2009]

• Gouri Sankar paul and Pratima Agarwal "Electrical Transport and transient photocurrent studies on CdS nanorods thin films", International conference on Advanced nanomaterials and nanotechnology,IIT Guwahati vol., no. , pp. , [2009]

• J. Anto Pradeep and Pratima Agarwal "Variation of photoluminescence peak center with the excitation energy in Porous silicon", International conference on Advanced nanomaterials and nanotechnology,IIT Guwahati vol., no. , pp. , [2009]

• J. Anto Pradeep and Pratima Agarwal "Structural Investigation of Porous Silicon by Raman Scattering Spectroscopy", 23rd International Conference on Amorphous and Nanocrystalline Semiconductors, Utrecht, The Netherlands vol., no. , pp. , [2009]

• Gouri Sankar Paul and Pratima Agarwal "Structural and thermal studies on PbS nanocubes", 23rd International Conference on Amorphous and Nanocrystalline Semiconductors, Utrecht, The Netherlands vol., no. , pp. , [2009]

• Gouri Sankar Paul and Pratima Agarwal "Evolution of nanostructure with reaction time for ZnS synthesized by solvothermal process", 23rd International Conference on Amorphous and Nanocrystalline Semiconductors, Utrecht, The Netherlands vol., no. , pp. , [2009]

• Purabi Gogoi, H.S. Jha and Pratima Agarwal "High band gap nanocrystalline silicon deposited by HWCVD", 23rd International Conference on Amorphous and Nanocrystalline Semiconductors, Utrecht, The Netherlands vol., no. , pp. , [2009]

• Purabi Gogoi, H.S. Jha, Pratima Agarwal , D. M. Phase and Shailendra Kumar"Microstructure investigation of Si:H films by Photoelectron Spectroscopy", 23rd International Conference on Amorphous and Nanocrystalline Semiconductors, Utrecht, The Netherlands vol., no. , pp. , [2009]

• G.S. Paul, S. Bhowmik and P.Agarwal "Synthesis and structural studies of PdS nanocubes", International Conference on Advances in Nanotechnology(ICANAT-2008), Raipur vol., no. , pp. , [2008]

• G.S. Paul, B. Pal and P.Agarwal "Transport properties studies of nanostructured SnS thin films", Proceeding of Fifty-third DAE Solid State Physics Symposium vol., no. , pp. , [2008]

• P. Gogoi, H.S. Jha and P.Agarwal "Fabrication of hot wire chemical vapour deposition set-up for preparation of hydrogenated silicon", Proceeding of Fifty-third DAE Solid State Physics Symposium, Mumbai vol., no. , pp. , [2008]

• G.S. Paul and P.Agarwal "Structural and stability studies of SnS nano-flakes synthesized by solvothermal process for solar photovoltaic applications", Proceeding of the IEEE Coference vol., no. , pp. , [2008]

• J. A. Pradeep and P. Agarwal "An investigation of photoluminescence peak shift with the excitation by photoluminescence excitation spectroscopy", Proceedings of Porous Semiconductors Science and Technology 2008, Mallorca, Spain vol., no. , pp. , [2008]

• P. Gogoi, H. S. Jha, A. Kumbhar and P. Agarwal "Structural and Transport studies on HWCVD Deposited Nanoform Silicon Films", Proceeding in the International Conference in Amorphous and Nanocrystalline Semiconductors (ICANS22), Colorado vol., no. , pp. , [2007]

• J. A. Pradeep, P. Gogoi and P. Agarwal "Single and Multilayer porous silicon structures for photonic applications", Proceeding in the International Coference in Amorphous and Nanocrystalline Semiconductors (ICANS22), Colorado, USA vol., no. , pp. , [2007]

• G. S. Paul, P. Gogoi and P. Agarwal "Structural and stability studies of CdS and SnS nanostructures synthesized by solvothermal process", Proceeding in the International Coference in Amorphous and Nanocrystalline Semiconductors (ICANS22), Colorado, USA vol., no. , pp. , [2007]

• G. S. Paul and P. Agarwal "Synthesis and studies of SnS nano-flakes synthesized by solvothermal process for application as a solar cell photovoltaic material", Proc. 52nd DAE Solid State Physics Symposium, Mysore, India, Ed. A. Das, M. Sunder and S. K. Gupta vol.52, no. , pp.347, [2007]

• J.A. Pradeep and P. Agarwal "X-ray diffraction studies on porous silicon", Proceedings of fifty-second DAE Solid State Physics Symposium 2007, University of Mysore, Karnataka vol., no. , pp.395, [2007]

• P Gogoi, H. S. Jha and P. Agarwal "Structural Studies on amorphous silicon films deposited by Hot Wire CVD technique", Proceedings of fifty-second DAE Solid State Physics Symposium 2007 vol., no. , pp.997, [2007]

• G. S. Paul and P. Agarwal"Transport properties studies of the CdS Nanorods Thin Films Prepared by Thermal Evaporation Technique", DAE Solid State Phys. Symp., Barkhatulla University, 26-30 December vol., no. , pp., [2006]

• P. Gogoi, T. A. Ansari and P. Agarwal"Steady State Photo Carrier Grating Technique: A powerful tool for measurement of charge carrier diffusion length", DAE Solid State Phys. Symp., Barkhatulla University, 26-30 December vol., no. , pp. , [2006]

• P. Agarwal, D. Deva and A. Srivastava, "Changes in surface morphology of amorphous Silicon Germanium films after exposure to light ", 21st Inter. Conf. on Amorphous and nanocrystalline semiconductors, Lisbon, Portugal, January vol., no. , pp. , [2006]

• R. Das, Purabi Gogoi and P. Agarwal "Modeling of Amorphous Silicon Based Single Junction Solar Cells ", Proc. DAE SSP Symp., vol.50, no. , pp.291, [2005]

• P. Gogoi, B. Kalita, D. Deva, P. N. Dixit and Pratima Agarwal"Effect of argon dilutionon growth rate and stability of amorphous silicon films ", 21st Inter. Conf. on Amorphous and nanocrystalline semiconductors, Lisbon, Portugal, September vol., no. , pp., [2005]

• P. Gogoi, B. Kalita, J. Anto Pradeep, B. Bhattacharya and P. Agarwal"Photoconductivity studies on amorphous silicon germanium thin films", Proc. DAE SSP Symp. vol.50, no. , pp.385, [2005]

• J Anto Pradeep, K. Alti, S. Sarma, P. Agarwal and A. Khare, "Nanostructure formation of Si and SiO2 from laser ablation of amorphous Silicon ", National Conf. on Pulsed Laser Deposition, Tirupati, November, vol., no. , pp. , [2005]

• Bulumoni Kalita, Purabi Gogoi, Sushil Kumar, P. N. Dixit and P. Agarwal"Transport Studies on high band gap a-Si: H thin films", Proc. DAE SSP Symposium, Amritsar, December vol., no. , pp. , [2004]

• Kamlesh Alti, Susanta Das, Bulumoni Kalita, P. Agarwal and A. Khare"Low divergence atomic beam using laser ablation of thin films", Proc. 7th International Conference on Optoelectronics, Fiber Optics and Photonics PHOTONICS-2004, Cochin, December, 2004 vol., no. , pp. , [2004]

• Purabi Gogoi, Bulumoni Kalita and P. Agarwal"Metastable changes in electrical conductivity of a-SiGe:H film after annealing", Proc. DAE SSP Symposium, Amritsar, December, 2004. vol., no. , pp. , [2004]

• V. Kanneboina, Ramakrishna Madaka and Pratima Agarwal "Influence of hydrogen plasma treatment on the performance of c-Si/a-Si:H heterojunction solar cells", 2nd International Conference on Solar Energy Photovoltaic, KIIT university, Bhubneswar, India vol.43, no. , pp. , [ Dec. 17-19, 2016]

• Asha Yadav and Pratima Agarwal"Laser induced selective crystallization of amorphous silicon thin film for device applications", 2nd International Conference on Solar Energy Photovoltaic, KIIT university, Bhubneswar, India vol.42, no. , pp. , [ Dec. 17-19, 2016 ]