Enhanced efficiency of perovskite solar cells through improving active layer morphology by interfacial engineering
基本信息来源于合作网站,原文需代理用户跳转至来源网站获取
摘要:
Perovskite solar cells (pero-SCs),with organic-inorganic hybrid perovskite semiconductors (e.g.CH3NH3PbI3) as active layer,have become the hottest research field in recent several years due to their distinguished advantages of high power conversion efficiency (15%~20%) and solutionprocessability which is very important for low cost large area production by roll-to-roll technique.To realize the high efficiency,key points are the morphology control of highly crystalline and homogeneous perovskite CH3NH3PbI3 active layers and the interfacial engineering between the active layer and two electrodes in the pero-SCs.Many researchers have devoted their efforts on the morphology control by using solvent additives,two-step spin coating,and different lead salts,etc.and on the interfacial engineering by using various cathode buffer layer and anode buffer layer materials.Obviously,it is desirable to develop simple strategy to combine the morphology control and the interfacial engineering together.