Amines modulation and passivation yields record perovskite optoelectronic devices

• 作者: Wenhuai Feng Wu-Qiang Wu Liming Ding
• 来源期刊: 能源化学
• 年，卷（期）: 2021,（2）
• 页码范围: 419-421
• 页数: 3页
• 语种: 英文

摘要

Perovskite-based optoelectronic devices using organic-inorganic, metal halide, hybrid thin films have revolutionized the pathway towards constructing more efficient and stable photovoltaics and light-emitting electronics [1,2].Nevertheless, solutionprocessed polycrystalline perovskite films inevitably contain a high density of crystallographic or ionic defects, such as uncoordinated ions, dangling bonds and halide vacancies at surfaces and/or grain boundaries, which results in undesirable charge recombination via non-radiative channels, thus impairing the device performance and imposing great challenge for long-term deployment.