Single crystalline CH3NH3PbI3 self-grown on FTO/TiO2 substrate for high efficiency perovskite solar cells

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2017,（17）
• 页码范围: 1173-1176
• 页数: 4页
• 语种: 英文

摘要

Since its first report in 2009,CH3NH3Pbl3-based perovskite solar cells (PSCs) have emerged as one of the most exciting developments in the next generation photovoltaic (PV) technologies [1],with its PV conversion efficiency (PCE) rising spectacularly from 3.81％ to 22.1％ in just 7 years.Such rapid advance is unprecedented in any other PV systems,fueling intense competitions for its PCE record worldwide.While still far away from its theoretical limit,the recent PCE advances in PSCs have slowed down considerably,due to the inevitable defects associated with grains and grain boundaries in polycrystalline perovskites as well as their poor stability.It is thus not surprising that some of recent efforts in PSCs have been shifted toward developing single crystalline perovskite materials.