Chen Lin-Jer, Lee Chia-Rong, Chuang Yu-Ju, Wu Zhao-Han, Chen Chienyi
Department of Photonics, ‡Department of Materials Science and Engineering, and §Department of Chemistry, National Cheng Kung University , Tainan 70101, Taiwan.
J Phys Chem Lett. 2016 Dec 15;7(24):5028-5035. doi: 10.1021/acs.jpclett.6b02344. Epub 2016 Nov 28.
Herein, the fabrication of a lead-free cesium tin halide perovskite produced via a simple solvothermal process is reported for the first time. The resulting CsSnX (X = Cl, Br, and I) quantum rods show composition-tunable photoluminescence (PL) emissions over the entire visible spectral window (from 625 to 709 nm), as well as significant tunability of the optical properties. In this study, we demonstrate that through hybrid materials (CsSnX) with different halides, the system can be tunable in terms of PL. By replacing the halide of the CsSnX quantum rods, a power conversion efficiency of 12.96% under AM 1.5 G has been achieved. This lead-free quantum rod replacement has demonstrated to be an effective method to create an absorber layer that increases light harvesting and charge collection for photovoltaic applications in its perovskite phase.
本文首次报道了通过简单的溶剂热法制备无铅铯锡卤化物钙钛矿。所得的CsSnX（X = Cl、Br和I）量子棒在整个可见光谱窗口（625至709 nm）显示出成分可调的光致发光（PL）发射，以及光学性质的显著可调性。在本研究中，我们证明通过具有不同卤化物的混合材料（CsSnX），该系统在PL方面是可调的。通过替换CsSnX量子棒的卤化物，在AM 1.5 G条件下实现了12.96%的功率转换效率。这种无铅量子棒替换已被证明是一种有效的方法，可用于创建吸收层，以增加其钙钛矿相在光伏应用中的光捕获和电荷收集。
