材料科学
同种类的
钙钛矿(结构)
化学工程
形态学(生物学)
能量转换效率
钙钛矿太阳能电池
溶剂
平面的
溶解过程
光电子学
乙醇
甲醇
有机化学
化学
计算机科学
遗传学
工程类
计算机图形学(图像)
物理
热力学
生物
作者
Peng Mao,Zhou Qing,Zhiwen Jin,Hui Li,Jizheng Wang
标识
DOI:10.1021/acsami.6b08863
摘要
Solution processable perovskite solar cells traditionally employed isopropanol as the solvent of CH3NH3I in a two-step method. One of the largest issues of this technique is the uncontrollable morphology of the perovskite film. In this study, a homogeneous and dense PbI2 film was prepared by introducing DMSO as an additive into DMF and then reacting the mixture with CH3NH3I dissolved in an isopropanol/ethanol solvent to fabricate high-quality perovskite films. Results revealed that ethanol played a crucial role on morphology and components of perovskite films. When the ratio of isopropanol to ethanol was optimized, a power conversion efficiency of 15.76% was achieved, which was on average ∼50% higher than that of PSCs without DMSO and ethanol processing.
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