Biography : Prof.(Dr.) Utpal Gangopadhyay received his Master of Science (Physics) degrees from Kalyani University, Nadia, West Bengal in 1981. He received his Ph.D degree in “Solar Photovoltaic” also from Kalyani University in May 1989. He is around 28years research experience in the field of Mono & Multi-crystalline Silicon Solar Cells and Semiconductor related Device like V-Groove MOSEFT, a-Si : H TFT, Silicon /porous silicon related Microsensors.. He worked as a Research Professor in the School of Electrical and Computer Engineering, Sungkyunkwan University, South Korea in the year 2001-2002 and a Research Scientists in Photon Semiconductor & Energy Limited Company, South Korea in the year 2002-2003 & 2004-2005 respectively. He is presently the Professor and Head of Centre of Advance Research in Renewable Energy & Sensor Technology and also Professor in the Department of Physics in Meghnad Saha Institute of Technology, Kolkata,India and responsible for Diamond like nanocomposite related film & devices and Solar PV development programs. He is also an expert member of DST, GOI project review committee. He has published around 130 papers in various international/national journals and conferences. He has two Indian patents and published one chapter of book and one book under NOVA Publisher Inc. USA. He is also associated as a Principal Investigator of four DST, GOI and one MNRE, GOI project program and as a supervisor of eight Ph.D Students in the field of sensor, nanocomposite and solar photovoltaic.