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Ultraviolet‐Protective Transparent Photovoltaics Based on Lead‐Free Double Perovskites
Solar RRL ( IF 6.0 ) Pub Date : 2020-03-30 , DOI: 10.1002/solr.202000056
Ganghong Liu 1 , Cuncun Wu 1 , Zehao Zhang 1 , Zhijian Chen 1 , Lixin Xiao 1 , Bo Qu 1
Affiliation  

Perovskite solar cells have attracted great research interest as a promising candidate for silicon solar cells. Plenty of work has been reported to use perovskites to semitransparent windows and transparent photovoltaic (TPV) devices to obtain multifunctional systems. However, the narrow bandgap and sharp absorption edge of the typical perovskites prevent them from achieving the highest transparency to satisfy the requirements of aesthetic and integration, and the poor stability and toxic Pb compositions hinder their practical application. Herein, lead‐free halide double perovskites with a wide bandgap and indirect bandgap characteristics is introduced to fabricate long‐term stable transparent photovoltaic devices exhibiting high visible transmittance (73%) and considerable energy conversion efficiency (1.56%). Through further theoretical calculation and evaluation, a new strategy using indirect bandgap material on TPV devices is proposed to combine the enhancement of these two parameters. This approach will be a significant compliment to near‐infrared‐absorbing solar cells to selectively harvest light in the invisible region to obtain highly performing multi‐junction smart windows on buildings, vehicles and mobile electronics, providing a new reasonable idea to realize TPVs with high efficiency and transparency simultaneously.

中文翻译:

基于无铅双钙钛矿的紫外线保护透明光伏

钙钛矿太阳能电池作为硅太阳能电池的有前途的候选者已经引起了广泛的研究兴趣。据报道,大量工作使用钙钛矿来制造半透​​明窗户,并使用透明光伏(TPV)设备来获得多功能系统。然而,典型的钙钛矿的窄带隙和尖锐的吸收边缘阻止它们获得最高的透明性以满足美学和一体化的要求,并且差的稳定性和有毒的Pb组合物阻碍了它们的实际应用。本文介绍了具有宽带隙和间接带隙特性的无铅卤化物双钙钛矿,以制造具有高可见光透射率(73%)和可观的能量转换效率(1.56%)的长期稳定的透明光伏器件。通过进一步的理论计算和评估,提出了一种在TPV器件上使用间接带隙材料的新策略,以结合这两个参数的增强。这种方法将是对近红外吸收太阳能电池的有力补充,它可以选择性地收集不可见区域的光,从而在建筑物,车辆和移动电子设备上获得高性能的多结点智能窗户,从而为实现高TPV的实现提供了新的合理思路。效率和透明度同时提高。
更新日期:2020-03-30
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