Abstract:
Nowadays, earth is facing the depletion of energy resources such as petroleum, natural gas and coal. Apparently, most of these resources produce harmful waste, endanger the living things on earth and this lead scientist to search a new way to substitute this conventional energy sources. Photovoltaic devices provide clean energy that can reduce world's dependency on this conventional energy sources. Tandem solar cell is a type of thin film solar cells which two solar cells were stacked together in means to improve the solar cell's performance. In preparing the tandem solar cell, multilayer coatings are crucial
steps and the most appealing technique to fabricate the layers via spin coating.