Dr. Himadri Sekhar Das is presently working as Associate Professor in Haldia Institute of Technology. He did his Postdoctoral research from Haldia Institute of Technology. He got his Ph. D degree from Indian Institute of Engineering Science and Technology (IIEST), Shibpur in 2021, M. Tech from Haldia Institute of Technology (Maulana Abul Kalam Azad University of Technology), West Bengal in 2010. M.Sc from Vidyasagar University in 2006. He has more than 8 years’ research and 5 years teaching experience. His research area was Doped ZnO based thin Film for different optoelectronics applications. Two research scholar doing Ph.D work under his guidance. He has published more than 40 research articles and 20 book chapter, 2 book. He is also DST Fellow and life member and Fellow of Indian Chemical Society (FICS) and Indian Photobiology society (IPS) also the Honorary Associate Member of Royal Society of Chemistry-UK.