Lim Jaekeun, Rafieh Alwani Imanah, Shibayama Naoyuki, Xia Jianxing, Audinot Jean-Nicolas, Wirtz Tom, Kinge Sachin, Glunz Stefan W, Ding Yong, Ding Bin, Kim Hobeom, Saliba Michael, Fei Zhaofu, Dyson Paul J, Nazeeruddin Mohammad Khaja, Kanda Hiroyuki
Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology Lausanne (EPFL) Lausanne CH-1015 Switzerland
Institute for Photovoltaics (ipv), University of Stuttgart Pfaffenwaldring 47 70569 Stuttgart Germany
Energy Environ Sci. 2024 Sep 25;17(21):8209-8218. doi: 10.1039/d4ee01841a. eCollection 2024 Oct 29.
Compositional engineering of organic-inorganic metal halide perovskite allows for improved optoelectrical properties, however, phase segregation occurs during crystal nucleation and limits perovskite solar cell device performance. Herein, we show that by applying tetrabutylammonium bistriflimide as an additive in the perovskite precursor solution, ultra-uniform perovskite crystals are obtained, which effectively increases device performance. As a result, power conversion efficiencies (PCEs) of 24.5% in a cell and 21.2% in a module are achieved, together with high stability under illumination, humidity and elevated thermal conditions.
有机-无机金属卤化物钙钛矿的成分工程可实现更好的光电性能，然而，在晶体成核过程中会发生相分离，这限制了钙钛矿太阳能电池器件的性能。在此，我们表明，通过在钙钛矿前驱体溶液中添加双（三氟甲基磺酰）亚胺四丁基铵，可获得超均匀的钙钛矿晶体，这有效地提高了器件性能。结果，电池的功率转换效率（PCE）达到24.5%，组件的功率转换效率达到21.2%，并且在光照、湿度和高温条件下具有高稳定性。
