Chen Lijia, Xu Cunyun, Qin Yan, He Xiaofeng, Bian Hongyu, Xu Gaobo, Niu Lianbin, Song Qunliang
College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, China.
Institute for Clean Energy and Advanced Materials, School of Materials and Energy, Southwest University, Chongqing 400715, China.
Nanomaterials (Basel). 2022 May 19;12(10):1736. doi: 10.3390/nano12101736.
Inverted perovskite solar cells (PSCs) exhibit great potential for industrial application thanks to their low complexity and low fabrication temperature. Aiming at commercial applications, it is necessary to comprehensively consider the material consumption and its corresponding electrical performance. Here, a simple strategy has been proposed to obtain inverted PSCs with comprehensive performance, that is, reaching an acceptable electrical performance by reducing the usage of perovskite. More precisely, the inverted PSCs, whose perovskite film is prepared by 1.0 M precursor, yields a power conversion efficiency () of 15.50%, fulfilling the requirement for real commercial application. In addition, the thickness of the electron transport layer (C in this work) in the above inverted PSCs was further optimized by comparing the simulated absorption spectrum, - characteristics and impedance with three different thicknesses of C layer. More excitingly, the optimized device displays high storage stability which maintains more than 90% of its initial for 28 days. Therefore, our work provides a simple and cost-effective method to reach good comprehensive performance of inverted PSCs for commercial applications.
倒置钙钛矿太阳能电池（PSC）因其低复杂性和低制备温度而在工业应用中展现出巨大潜力。针对商业应用，有必要全面考虑材料消耗及其相应的电学性能。在此，提出了一种获得具有综合性能的倒置PSC的简单策略，即通过减少钙钛矿的用量来达到可接受的电学性能。更确切地说，由1.0 M前驱体制备钙钛矿薄膜的倒置PSC，其功率转换效率（）为15.50%，满足实际商业应用的要求。此外，通过比较具有三种不同厚度C层的模拟吸收光谱、-特性和阻抗，进一步优化了上述倒置PSC中电子传输层（本工作中的C）的厚度。更令人兴奋的是，优化后的器件显示出高存储稳定性，在28天内保持其初始的90%以上。因此，我们的工作提供了一种简单且具有成本效益的方法，以实现用于商业应用的倒置PSC的良好综合性能。
