Rethinking the Role of Excess/Residual Lead Iodide in Perovskite Solar Cells

You Gao; Hasan Raza; Zhengping ZhangWei ChenZonghao Liu

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Rethinking the Role of Excess/Residual Lead Iodide in Perovskite Solar Cells

机译：Rethinking the Role of Excess/Residual Lead Iodide in Perovskite Solar Cells

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It is widely believed that excess/residual lead iodide (PbI_2) can affect theperformance of perovskite solar cells . Moderate PbI_2 can enhance efficiencyby passivating defects, while extremely active PbI_2 leads to non-negligiblehysteresis effects and reduces device stability. Although several efforts aremade to investigate the role of excess PbI_2, its impact is still underestimated.Recent advances further demonstrate the extraordinary potential of modifyingexcess PbI_2; however, a comprehensive study is required to obtain a deeperunderstanding. Herein, the important breakthroughs regarding excess PbI_2are reviewed and the mechanism of excess PbI_2 in terms of efficiency andstability is rethought. In addition, the origins, verification, and regulation ofresidual PbI_2 are summarized.

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来源
《Advanced functional materials》 |2023年第26期|2215171.1-2215171.18|共18页
作者
You Gao; Hasan Raza; Zhengping ZhangWei ChenZonghao Liu;
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作者单位

Key Laboratory of Micro-Nano-Electronics and SoftwareTechnology of Guizhou ProvinceCollege of Big Data and Information EngineeringGuizhou UniversityGuiyang 550025, China,Wuhan National Laboratory for Optoelectronics (WNLO)Huazhong University of Science an;

Wuhan National Laboratory for Optoelectronics (WNLO)Huazhong University of Science and Technology (HUST)Wuhan 430074, China;

Key Laboratory of Micro-Nano-Electronics and SoftwareTechnology of Guizhou ProvinceCollege of Big Data and Information EngineeringGuizhou UniversityGuiyang 550025, China;

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正文语种英语
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lead iodide; passivation; perovskite solar cells; photodegradations; regulations;

Rethinking the Role of Excess/Residual Lead Iodide in Perovskite Solar Cells

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