I am Penultimate year student doing fourth year thesis with Bram. My thesis topic is about “the optimization of transparent conductive oxides in Cu2ZnSnS4 (CZTS) solar cell”. In my thesis, the deposition of Al doped ZnO by Atomic layer deposition (AZO) would be introduced. As well as how to produce and structure of Cu2ZnSnS4 (CZTS) solar cell would mention. How to improve the optical and electrical properties would my main objective.