浴铜灵在提高反式钙钛矿太阳能电池性能的研究

近年来,基于CH_3NH_3PbX_3(X=Cl,Br,I)结构的钙钛矿太阳能电池由于其简单的制作工艺和较高的光电转化效率而吸引了大量的研究。在反式钙钛矿电池活性层中使用浴铜灵(BCP)来提高电池光电性能。使用溶液法旋涂BCP有效地把Ag电极的功函从原来的-4.23 e V降低到了-4.12 e V,改善了电子的传输和Ag电极收集电子的效率。从而提高了反式钙钛矿电池的短路电流密度和填充因子。光电转化效率由10.3%提高到12.6%。使用BCP的钙钛矿电池的稳定性也有约10%的提高。结果证明,使用BCP有利于提升反式钙钛矿电池的性能,对实现这类太阳能电池的商业化应用起到推动作用。

A Study on improving the performance of inverted structured perovskite solar cells using bathocuproine

Recently, CH3NH3PbX3 (X=Cl, Br, or I) based perovskite solar cells have attracted great attention due to the simple processing and high performance. In this work, we investigated the effect of using bathocuproine (BCP) in inverted perovskite solar cells. By using BCP, we tuned the work function of the Ag electrode from -4.23eV to -4.12eV, for improving the electron transportation and collection. We improved the power conversion efficiency of perovskite solar cells from 10.3% to 12.6%, with enhanced short circuit current density and fill factor. The stability of the perovskite solar cells was improved by ~10%. Our results demonstrated that, using BCP is an effective way to improve the performance of perovskite solar cells and to realize the commercialization of perovskite solar cells.