摘要/Abstract

近年来钙钛矿太阳能电池发展迅速，全无机钙钛矿具有良好的热稳定性、高吸光系数、带隙可调、制备简单等优点备受关注.现今，无机钙钛矿太阳能电池的最高光电转化效率已达19.03%，具有很好的发展潜力.本综述将从无机钙钛矿太阳能电池的制备方法、薄膜掺杂、界面修饰对稳定性影响入手，系统介绍无机钙钛矿太阳能电池的发展并进行分析总结，并着重分析了无机钙钛矿不稳定的原因及其改善方法，最后对于无机钙钛矿太阳能电池的未来进行了展望.
关键词: 无机钙钛矿太阳能电池, 制备方法, 界面修饰, 薄膜掺杂, 稳定性提高
In recent years, the efficiency of perovskite solar cells has developed rapidly, but its stability is limited by the influence of heat, light and water. All-inorganic perovskite formed by inorganic cations instead of organic cations shows improved thermal stability, high light absorption and adjustable band gap. The photoelectric conversion efficiency of all-inorganic perovskite solar cells has been improved to 19.03% at present. Among them, CsPbI₃ perovskite solar cells have good photoelectric performance but poor stability, while CsPbBr₃ perovskite solar cells have excellent stability but poor photoelectric performance of devices. In this paper, the influence of preparation method, film doping and interface modification on the stability of inorganic perovskite solar cells is systematically summarized. The reasons behind the instability of inorganic perovskite and the improvement methods are emphatically analyzed. In conclusion, improving the stability of inorganic perovskite light absorbing materials by film doping, surface passivation and morphology control such as low dimensional materials preparation can effectively improve the stability of the overall device, which provides the basis for further commercialization. In addition, it is of great significance to study the theory of charge transfer and recombination and establish a complete theoretical system for improving the performance and stability of the device. At present, most of perovskite contains harmful elements Pb. How to replace Pb and find new materials applied in perovskite solar cells is also the future development trend. In a word, as a new type of solar cell, inorganic perovskite solar cell is expected to contribute to the photovoltaic development of the future society.
Key words: inorganic perovskite solar cell, preparation method, interface modification, film doping, improved stability


PDF全文下载地址:

点我下载PDF