钙钛矿(结构)
捷克先令
材料科学
量子点
能量转换效率
光电子学
光伏系统
光致发光
纳米技术
太阳能电池
化学工程
电气工程
工程类
作者
Zhengji Zhou,Yueqing Deng,Panpan Zhang,Dongxing Kou,Wenhui Zhou,Yuena Meng,Shengjie Yuan,Sixin Wu
出处
期刊:Solar RRL
[Wiley]
日期:2019-02-25
卷期号:3 (4)
被引量:36
标识
DOI:10.1002/solr.201800354
摘要
All‐inorganic CsPbBr 3 perovskite solar cells (PSCs) have recently generated tremendous interest in next‐generation cost‐effective and stable photovoltaic devices. However, the commonly used costly and unstable organic hole transporting material (HTM) has so far prevented the further development and large‐scale application of PSCs. In this work, Cu 2 ZnSnS 4 quantum dots (CZTS QDs) are exploited as a novel inorganic HTM for CsPbBr 3 PSCs. Due to the well‐matched energy levels with the inorganic perovskite layer, a decent power conversion efficiency of 4.84% is achieved, which is quite comparable to the efficiency of the traditional device based on spiro‐OMeTAD HTM (5.36%). Moreover, the photoluminescence (PL) and impedance spectroscopy further demonstrate the more effective hole extraction and transfer properties of the CZTS QDs interface layer, making it a promising material for fabricating efficient and stable PSCs toward practical applications.
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