Zhang Rui, Chen Zeng, Ma Jiping, Zhang Putao, Liu Meiyue, Li Xiaohui, Zhao Ru, Tang Jianyao, Ren Zhengyu, Li Shengjun
Key Laboratory of Photovoltaic Materials, Henan University, China.
Chem Commun (Camb). 2023 Mar 7;59(20):2911-2914. doi: 10.1039/d2cc06662a.
Here, we present a new two-electrode photo-rechargeable FTO/TiO/CsBiI/Pt/FTO system. The key material is the photoactive lead-free perovskite CsBiI, which performs photoelectric conversion and provides energy storage. This study is the first example of a battery system in which charging and discharging are based on bismuth redox chemistry. In the photo-charged state, the fabricated battery has an open-circuit voltage of ∼0.28 V in the dark. With a series-connected pack of these batteries, an LED was lit for tens of seconds in the dark.
在此，我们展示了一种新型的双电极光可充电FTO/TiO/CsBiI/Pt/FTO系统。关键材料是光活性无铅钙钛矿CsBiI，它进行光电转换并提供能量存储。本研究是电池系统中首例充电和放电基于铋氧化还原化学的实例。在光充电状态下，所制备的电池在黑暗中具有约0.28 V的开路电压。将这些电池串联起来，能在黑暗中点亮一个发光二极管数十秒。
