Highly efficient self-powered CH3NH3Pbl3 perovskite photodiode with double-sided poly(methyl methacrylate) passivation layers
SOLAR ENERGY MATERIALS AND SOLAR CELLS(2024)
摘要
Hybrid organohalide perovskites have recently attracted significant attention due to their outstanding photovoltaic (PV) conversion capabilities in optoelectronic devices. Herein, to develop a highly sensitive and selfpowered perovskite-based PV photodiode (PVPD), we implement the selective use of poly(methyl methacrylate) (PMMA) as noise-current-reducing passivation layers on both the front and rear sides of a CH3NH3PbI3 (MAPbI3) perovskite light-absorbing layer. It is found that the PMMA layers effectively suppress carrier recombinations at the interfaces, resulting in fairly high power conversion efficiency of 17.6%. Additionally, the double-sided PMMA-passivated MAPbI3 PVPD shows exceptional specific detectivity values (1.0 x 1014 Jones from the dark current and 1.3 x 1012 Jones from the noise current), significantly outperforming conventional MAPbI3 PVPDs without passivation layers. The device also exhibits a very wide linear dynamic response range of -139 dB, with rapid rise and decay response times of 57 and 18 mu s, respectively. The double-sided PMMApassivated MAPbI3 PVPD also is shown to be highly durable in terms of its dynamic responses even after a prolonged storage period of 1500 h. These results suggest that advanced interface engineering using double PMMA passivation layers holds great potential for developing high -performance self-powered perovskite photodetectors for a range of optoelectronic applications.
更多查看译文
关键词
Organic/inorganic hybrid perovskite,Photovoltaic,Polymeric passivation layer,Photodetector
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要