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Lead free CH3NH3SnI3 based perovskite solar cell using ZnTe nano flowers as hole transport layer
Optical Materials ( IF 3.9 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.optmat.2020.110574
Komal Kumari , Abir Jana , Anup Dey , Tapas Chakrabarti , Subir Kumar Sarkar

Abstract The potential impact of thin film perovskite solar cell is metamorphic as it can reduce the cost associated with manufacturing of solar cells. Perovskite materials have impressive optoelectronic properties such as high mobility, high absorption and long diffusion length of charge carriers. The power conversion efficiency of lead contained metal halide perovskite has reached up to 23%, but lead is a highly toxic element thereby harmful for environment. In this work Sn based perovskite (CH3NH3SnI3) has been proposed and investigated using hole transport layer. Along with absorption of light by active layer, charge separation and extraction also plays a crucial role in controlling the device performance. The potential of ZnTe as hole collector has been explored. Here we report modeling, simulation and fabrication of lead-free CH3NH3SnI3 perovskite solar cell processed on ZnTe as hole transport layer. Remarkably, we achieve efficiency of 22.96% in simulation and 8.41% in fabrication.

中文翻译:

使用ZnTe纳米花作为空穴传输层的无铅CH3NH3SnI3基钙钛矿太阳能电池

摘要 薄膜钙钛矿太阳能电池的潜在影响是变质的,因为它可以降低与太阳能电池制造相关的成本。钙钛矿材料具有令人印象深刻的光电特性,例如高迁移率、高吸收性和电荷载流子的长扩散长度。含铅金属卤化物钙钛矿的功率转换效率高达23%,但铅是一种剧毒元素,对环境有害。在这项工作中,已经提出并使用空穴传输层研究了基于 Sn 的钙钛矿(CH3NH3SnI3)。随着活性层对光的吸收,电荷分离和提取在控制器件性能方面也起着至关重要的作用。已经探索了 ZnTe 作为空穴收集器的潜力。在这里我们报告建模,以ZnTe作为空穴传输层加工的无铅CH3NH3SnI3钙钛矿太阳能电池的模拟和制造。值得注意的是,我们在模拟中实现了 22.96% 的效率,在制造中实现了 8.41% 的效率。
更新日期:2021-01-01
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