|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XVI
||Niobium Pentoxide Hole-blocking Layer for Perovskite Solar Cell
||Rui Cheng, Yu Ting Huang, Shien Ping Feng
|On-Site Speaker (Planned)
Recently perovskite, a low cost hybrid material with both organic and inorganic components, has been used as absorption material for solar cell and achieved 22.1% power conversion efficiency (PCE). A uniform and pinhole-free hole-blocking layer (HBL) is necessary for high-performance perovskite solar cell (PSC). Until now, many effective materials and intelligent ways for fabricating HBL has been reported by former researchers. Different from the wide-adopted methods like spin-coating, spray pyrolysis, ALD and sputtering, this research introduces ekectrophosis Nb2O5 HBL. Nb2O5 nano-particles was synthesized through a series of chemical reactions and then deposited on FTO surface by electrophoresis to form a compact HBL. It significantly reduces the effect of charge-hole recombination and avoid current leakage. An optimized PCE of 13.9% for mesoporous PSC and 15.8% for planar PSC was demonstrated, with fill factor (FF) of 0.72 and 0.78.
||Planned: Supplemental Proceedings volume