论文标题
Cu的表面处理:使用\ b {eta} - 丙氨酸的Niox孔传输层,无滞后和热稳定的倒置钙钛矿太阳能电池
Surface Treatment of Cu:NiOx Hole-Transporting Layer Using \b{eta}-Alanine for Hysteresis-Free and Thermally Stable Inverted Perovskite Solar Cells
论文作者
论文摘要
使用CU倒置的钙钛矿太阳能电池(PSC):Niox孔转运层(HTL)通常会出现稳定性问题,在某些情况下是J/V滞后。在这项工作中,我们在Cu:Niox HTL上开发了一种\ b {eta} - 丙氨酸表面处理过程,该过程提供了无J/V滞后,高效,高效且热稳定的倒置PSC。 \ b {eta} - 丙氨酸处理的Cu:Niox HTL的改进的设备性能归因于形成了亲密的Cu:Niox/Perovskite界面和散装钙钛矿活性层中电荷陷阱密度的降低。 CU上的\ b {eta} - 丙氨酸表面处理过程:Niox HTL消除了主要的热降解机制,在加速热量寿命条件下,寿命的表现增加了40倍。通过使用拟议的表面处理,我们报告了具有高功率转化效率(PCE)(最高15.51%)的优化设备,在加速的热量寿命条件下(60 C,N2),最高可达1000 h的寿命。
Inverted perovskite solar cells (PSCs) using a Cu:NiOx hole transporting layer (HTL) often exhibit stability issues and in some cases J/V hysteresis. In this work, we developed a \b{eta}-alanine surface treatment process on Cu:NiOx HTL that provides J/V hysteresis-free, highly efficient, and thermally stable inverted PSCs. The improved device performance due to \b{eta}-alanine-treated Cu:NiOx HTL is attributed to the formation of an intimate Cu:NiOx/perovskite interface and reduced charge trap density in the bulk perovskite active layer. The \b{eta}-alanine surface treatment process on Cu:NiOx HTL eliminates major thermal degradation mechanisms, providing 40 times increased lifetime performance under accelerated heat lifetime conditions. By using the proposed surface treatment, we report optimized devices with high power conversion efficiency (PCE) (up to 15.51%) and up to 1000 h lifetime under accelerated heat lifetime conditions (60 C, N2).