Tushar Dhabal Das obtained his Ph.D degree in Electronic Science from University of Calcutta, Kolkata in 2010 where he worked in area of III-V dilute nitride semiconductor materials LPE growth and characterization, and there he has developed and advanced 10K PL system for mid-infrared to IR wavelength region. From 2011 to 2012 he worked as a Post Doctoral Fellow at ATDC, IIT Kharagpur. Later he worked as a Young Scientist Fellow at Dept. of Electronic Science, University of Calcutta from 2012 to 2015. He received his Bachelor and Master degree in Electronic Science from Vidyasagar University, West Bengal, India in 2001 and 2003, respectively. In April, 2015, he joined at National Institute of Technology, Arunachal Pradesh as an Assistant Professor and currently he is holding same position in the Department of Basic and Applied Science (Physics), NIT Arunachal Pradesh, India. His general research area is on III-V compound semiconductor nanostructure for high efficiency solar. In this field, he has been focusing on the processing, modeling, and electro-optic characterization of homo- and heterojunction solar cell materials and devices. His current research interests are focused on the design and fabrication of novel OLED/organic solar cell for renewable energy applications. He has (co-) authored 25 high-impact journal papers with 51 scientific contributions, and an active reviewer for journals & agencies.