Optimizing Composition and Morphology for Large-Grain Perovskite Solar Cells via Chemical Control
Optimizing Composition and Morphology for Large-Grain Perovskite Solar Cells via Chemical Control
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DOI：
10.1021/acs.chemmater.5b02378
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发表时间：
2015-08
影响因子：
8.6
通讯作者：
H. Tsai;W. Nie;P. Cheruku;N. Mack;Ping Xu;Gautam Gupta;A. Mohite;Hsing-lin Wang
中科院分区：
文献类型：
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作者：
H. Tsai;W. Nie;P. Cheruku;N. Mack;Ping Xu;Gautam Gupta;A. Mohite;Hsing-lin Wang
我们报告固体碘作为前体添加剂，用于实现纯化的有机金属钙钛矿晶体。通过加入碘，我们发现反应可以被推向纯碘相而不是动力学上有利的氯相。这种方法可以应用于大型晶体钙钛矿太阳能电池，并将平均效率从9.83%提高到15.58%。
We report solid iodine as a precursor additive for achieving purified organometallic perovskite crystals. By adding iodine, we found that the reaction can be pushed toward pure iodine phase rather than the kinetically favored chlorine phase. This approach can be applied in large crystalline perovskite solar cells and improved the average efficiency from 9.83% to 15.58%.