Chen Hao, Liu Detao, Wang Yafei, Wang Chenyun, Zhang Ting, Zhang Peng, Sarvari Hojjatollah, Chen Zhi, Li Shibin
State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu, Sichuan, 610054, China.
Department of Electrical and Computer Engineering, Center for Nanoscale Science and Engineering, University of Kentucky, Lexington, KY, 40506, USA.
Nanoscale Res Lett. 2017 Dec;12(1):238. doi: 10.1186/s11671-017-1992-1. Epub 2017 Mar 31.
Lead halide perovskite solar cells (PSCs) appear to be the ideal future candidate for photovoltaic applications owing to the rapid development in recent years. The electron transport layers (ETLs) prepared by low-temperature process are essential for widespread implementation and large-scale commercialization of PSCs. Here, we report an effective approach for producing planar PSCs with Al doped SnO ETLs prepared by using a low-temperature solution-processed method. The Al dopant in SnO enhanced the charge transport behavior of planar PSCs and increased the current density of the devices, compared with the undoped SnO ETLs. Moreover, the enhanced electrical property also improved the fill factors (FF) and power conversion efficiency (PCE) of the solar cells. This study has indicated that the low-temperature solution-processed Al-SnO is a promising ETL for commercialization of planar PSCs.
由于近年来的快速发展，卤化铅钙钛矿太阳能电池（PSC）似乎是未来光伏应用的理想候选者。通过低温工艺制备的电子传输层（ETL）对于PSC的广泛应用和大规模商业化至关重要。在此，我们报告了一种有效的方法，用于制备具有通过低温溶液处理方法制备的Al掺杂SnO ETL的平面PSC。与未掺杂的SnO ETL相比，SnO中的Al掺杂剂增强了平面PSC的电荷传输行为，并提高了器件的电流密度。此外，增强的电学性能还提高了太阳能电池的填充因子（FF）和功率转换效率（PCE）。这项研究表明，低温溶液处理的Al-SnO是平面PSC商业化的一种有前途的ETL。
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