View Profile

• Ph.D in Optoelectronics Device Fabrication from IIT Patna (2022).
• M.Tech in Optoelectronics with specialization in Optical Communication from SGSITS, Indore.
• B.E in Electronics and Communication from RJIT, Gwalior .

• August 2023 to till date : Adjunct Assistant Professor at IIIT Nagpur.
• July 2022 to June 2023 : Teaching Assistant at SVNIT, Surat.
• July 2011 to April 2014 : Project Assistant at IIT Gandhinagar.
• December 2010 to May 2011 : Lecturer at SGSITS, Indore.

• 1^st Semester CSE : Electronic Devices and Circuits (2023-2024).
• 1^st Semester ECE/IoT : Introduction to IoT (2023-2024).
• 1^st Semester CSE : Elements of Electrical Engineering (2023-2024).

Area of Research:

Optoelectronics Devices, Semiconductor thin films, Sensors, Optical Communication

Journal Papers:

• Rashmi Ranjan Kumar, Raghvendra, Ranjit Laha and Saurabh Kumar Pandey, “Effect of gold nanoparticles on the optoelectronic properties of oxygen-deficient ZnO thin films” Journal of Material Science: Material in electronics vol.33 pp. 10693–10703 2022. (SCIE)
• Rashmi Ranjan Kumar, Raghvendra and Saurabh Kumar Pandey, “Impact of Radio Frequency Power on the Optoelectronic Properties of ZnO Films” Optical and Quantum Electronics 54:582 2022. (SCIE)
• Rashmi Ranjan Kumar, Raghvendra, Sushil Kumar Pandey and Saurabh Kumar Pandey, “Experimental investigation and comparative analysis of electron beam evaporated ZnO/MgxZn1-xO/CdxZn1-xO thin films for photodiode applications” Superlattices and Microstructures vol. 150 106787 2021. (SCIE)
• Rashmi Ranjan Kumar, Raghvendra, Ranjit Laha and Saurabh Kumar Pandey, “Growth and Characterization of ZnO/MgZnO Thin Film Hetero Structures on p Si for Visible Light Detectors” Semiconductor Science and Technology 36 (2021) 095022. (SCIE)
• Rashmi Ranjan Kumar, Muddam Raja Sekhar, Raghvendra, Ranjit Laha and Saurabh Kumar Pandey, “Comparative studies of ZnO thin flms grown by electron beam evaporation, pulsed laser and RF sputtering technique for optoelectronics applications” Applied Physics A vol.126 issue 11 pp. 859-869 2020. (SCIE)
• Raghvendra, Rashmi Ranjan Kumar, Deepak Punetha and Saurabh Kumar Pandey, “Design Perspective, Fabrication and Performance Analysis of Formamidinium Tin Halide Perovskite Solar cell” IEEE Journal of Photovoltaics vol.13 pp. 404-410 2023. (SCIE)
• Raghvendra, Rashmi Ranjan Kumar and Saurabh Kumar Pandey, “Investigation of Perovskite/Perovskite Two Terminal Tandem Solar Cell Utilizing Drift Diffusion Analysis” Journal of Electronic Materials vol. 51 pp. 6603-6613, 2022. (SCIE)
• Raghvendra, Rashmi Ranjan Kumar and Saurabh Kumar Pandey, “Theoretical Study of Charge Carrier Lifetime and Recombination on the Performance of Eco-friendly Perovskite Solar Cell” IEEE Trans. on Electron Devices vol.68 no.7 pp. 3446-3452 2021. (SCIE)
• Muddam Raja Sekhar, Rashmi Ranjan Kumar, Suman Kumari, Ranjit Laha, Saurabh Kumar Pandey and Manoranjan Kar, “Visible light photoconductivity studies of gold nanoparticle embedded ZnO thin films for photo detector application” Semiconductor Science and Technology vol. 35, 115004, 2020. (SCIE)
• Raghvendra, Rashmi Ranjan Kumar and Saurabh Kumar Pandey, “Performance Evaluation and Material Parameter Perspective of Eco-Friendly Highly Efficient CsSnGeI3 Perovskite Solar Cell” Superlattices and Microstructures vol. 135 106273 2019. (SCIE)
• Raghvendra, Deepak Punetha, Rashmi Ranjan Kumar and Saurabh Kumar Pandey, “Examining the performance parameters of stable environment friendly perovskite solar cell."Optical Materials vol.143 114124 2023. (SCIE)

Book Chapters:

• Rashmi Ranjan Kumar, Deepak Punetha and Saurabh Kumar Pandey, “Performance optimization and analysis of ZnO based green light emitting diode”, Proceedings in Physics Springer pp. 1127 -1135, 2017.
• Sachin Kumar, Rashmi Ranjan Kumar and Saurabh Kumar Pandey, “Performance Analysis of MEMS Capacitive Pressure Sensor with Different Dielectrics” Springer Proceedings in Mathematics & Statistics, vol 342 pp. 97-105, 2021

International Conferences:

• Rashmi Ranjan Kumar, Deepak Punetha, Raghvendra and Saurabh Kumar Pandey, “Performance Optimization and Analysis of ZnO based Ultraviolet Photodiode”, NUSOD 2018, Hong Kong, China.
• Raghvendra, Rashmi Ranjan Kumar and Saurabh Kumar Pandey, “Performance Improvement and Defects Analysis in Perovskite based Solar Cell”, IEEE 46th Photovoltaic Specialists Conference, Chicago, USA 2019.
• Deepak Punetha, Rashmi Ranjan Kumar and Saurabh Kumar Pandey, “Numerical Modeling and Performance Analysis of Zinc Oxide (ZnO) Thin-Film based Gas Sensor” AIP Proceedings, 1966, 020008 2018.

• Invited talk in Workshop on “Next Generation Semiconductor Devices for High End Applications” at NIT Patna organised from June 22, 2020 – June 27, 2020.