Effect of Sputtered Zinc Oxide as Anti- Reflection Coating in Amorphous Silicon Solar Cell

Amorphous Silicon (aSi) solar cell structure is modelled and optimized using Lumerical FDTD solution & Lumerical Device. Sputtered Zinc Oxide (ZnO) transparent layer have been used on these Amorphous silicon solar cells as anti-reflecting coating (ARC). Simulation is done and optical properties and electrical characteristics have been investigated. It is found that the less Reflectance and more transmittance with application of Sputtered ZnO proved that it can be used as AR coatings. It is observed that after using sputtered ZnO as an ARC, conversion efficiency of solar cell is increased from its original 9.03 % to 11.90 and it is also observed a thickness of 70-90 nm is optimum for use of the Sputtered ZnO as anti-reflection coatings.