钙钛矿(结构)
钝化
铅(地质)
泄漏(经济)
材料科学
能量转换效率
环境友好型
碘化物
化学工程
纳米技术
化学
光电子学
地质学
无机化学
工程类
生态学
图层(电子)
经济
宏观经济学
地貌学
生物
作者
Huan Bi,Yi Guo,Mengna Guo,Chao Ding,Shuzi Hayase,Hanjun Zou,Qing Shen,Gaoyi Han,Wenjing Hou
标识
DOI:10.1016/j.jpowsour.2023.232825
摘要
Although perovskite solar cells (PSCs) have achieved significant success, there are still some barriers to their commercialization, such as poor stability and unsatisfactory power conversion efficiency (PCE). Here, we report low-dimensionality engineering of perovskites using mercaptoethylammonium iodide (MEMI). Two-dimensional (2D) perovskite materials can simultaneously passivate the interface defects of the perovskite film and enhance carrier extraction. The PCE of the device increased from 20.85% for the control device to a resultant of 22.41% for the target device. Meanwhile, device stability was ameliorated after MEMI modification, and the stability of unencapsulated target devices decreased by 7.5% after aging in the dark air condition for 300 h. Finally, the notorious lead leakage was significantly suppressed. This work guides to create efficient and stable environmentally friendly PSCs through low-dimensional engineering.
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