4. Mahendra Goddati received his Master’s degree in Physics with a specialization in thin films and vacuum technology from Sri Venkateswara University, Tirupati, Andhra Pradesh, INDIA, in 2018. He is a Ph.D. student in the LEELAB, Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Republic of Korea. He has working experience on metal oxide-based thin film supercapacitors, and he is currently working on photoelectrochemical cells, electrochemistry, plasma, and energy.