Subodh K. Gautam is working as a post-doctoral researcher at CNRS-Laboratory of Solid State Physics (LPS), University of Paris-Saclay, Paris, France. He did master degree in Physics and completed his Ph.D. from Inter-University Accelerator Centre/ Jawaharlal Nehru University, New Delhi, India. Research interest: (1) Optical properties of organic-inorganic Hybrid Perovskites (2) Oxide semiconductor thin films and nanocomposite for optoelectronic applications.