Stability Issues on Perovskite Solar Cells

Photonics

Xing Zhao¹ 

[1] School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea; E-Mail

关键词: perovskite solar cell;    organo lead halide;    methylammonium;    formamidinium;    stability;    moisture;    degradation;    CH₃NH₃PbI₃;    HC(NH₂)₂PbI₃;   

DOI  :  10.3390/photonics2041139

来源: mdpi

【 摘 要 】

Organo lead halide perovskite materials like methylammonium lead iodide (CH₃NH₃PbI₃) and formamidinium lead iodide (HC(NH₂)₂PbI₃) show superb opto-electronic properties. Based on these perovskite light absorbers, power conversion efficiencies of the perovskite solar cells employing hole transporting layers have increased from 9.7% to 20.1% within just three years. Thus, it is apparent that perovskite solar cell is a promising next generation photovoltaic technology. However, the unstable nature of perovskite was observed when exposing it to continuous illumination, moisture and high temperature, impeding the commercial development in the long run and thus becoming the main issue that needs to be solved urgently. Here, we discuss the factors affecting instability of perovskite and give some perspectives about further enhancement of stability of perovskite solar cell.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.