The development in human life style and society implicating depletion of natural resources which are non-renewable because of drastic demand in energy. There are many simultaneous consequences like increased global temperature, pollution w.r,t. air, water and others. Adding to this, improved living standards of ours demands immediate requirement for efficient devices for electrical energy conversion and storage. The popular means for this are electrochemical supercapacitor, batteries for the purpose of storage and solar cells for conversion of electrical energy.