High Bending Durability of Efficient Flexible Perovskite Solar Cells Using Metal Oxide Electron Transport Layer
High Bending Durability of Efficient Flexible Perovskite Solar Cells Using Metal Oxide Electron Transport Layer
复制标题
DOI：
10.1021/acs.jpcc.8b05008
复制
发表时间：
2018-07
期刊：
影响因子：
--
通讯作者：
Fengjiu Yang;Jiewei Liu;HongEn Lim;Yasuhisa Ishikura;K. Shinokita;Y. Miyauchi;A. Wakamiya;Y. Murat
中科院分区：
文献类型：
--
作者：
Fengjiu Yang;Jiewei Liu;HongEn Lim;Yasuhisa Ishikura;K. Shinokita;Y. Miyauchi;A. Wakamiya;Y. Murat
在过去的几年里，随着光伏性能的快速发展，有机-无机钙钛矿太阳能电池(PSCs)被认为是轻便、灵活的光伏设备和便携式系统等下一代光伏器件的候选材料。然而，柔性PSCs在机械弯曲试验中的光伏性能和耐久性还不足以满足实际应用的需要。这一不足源于缺乏用于fPSCs的优质电子传输材料(ETM)。在这里，我们描述了SnO2作为ETM在功能PSCs(SnO2-fPSCs)中的应用，获得了出色的光伏性能和优异的机械弯曲耐久性。结果表明，SnO2-fPSCs具有17.1%和16.2%的高功率转换效率和17.0%和15.9%的高稳定功率输出，光激活面积分别为0.1和1.0 cm~2。此外，SnO2-fPSCs具有良好的弯曲性能。
With a rapid progress in photovoltaic performance over the past several years, organic–inorganic perovskite solar cells (PSCs) have been regarded as a promising candidate for next-generation photovoltaic devices such as lightweight and flexible photovoltaic equipment and portable systems. However, the photovoltaic performance and its durability during the mechanical bending test of flexible PSCs (fPSCs) are insufficient for the realistic application. This inadequacy stems from a lack of a superior electron transport material (ETM) for fPSCs. Here, we describe the application of SnO2 as an ETM for fPSCs (SnO2-fPSCs), achieving outstanding photovoltaic performance and excellent mechanical bending durability. We demonstrate the high power conversion efficiency (PCE) of 17.1 and 16.2% with negligible hysteresis and the high stabilized power output of 17.0 and 15.9% of normal-architecture SnO2-fPSCs with a photoactive area of 0.1 and 1.0 cm2, respectively. Moreover, the SnO2-fPSCs exhibit an excellent bending ...