SKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nanoengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.
Science. 2022 Feb 25;375(6583):eabj1186. doi: 10.1126/science.abj1186.
The A cation in ABX organic-inorganic lead halide perovskites (OLHPs) was conventionally believed to hardly affect their optoelectronic properties. However, more recent developments have unraveled the critical role of the A cation in the regulation of the physicochemical and optoelectronic properties of OLHPs. We review the important breakthroughs enabled by the versatility of the A cation and highlight potential opportunities and unanswered questions related to the A cation in OLHPs.
ABX 有机-无机卤化铅钙钛矿（OLHP）中的 A 阳离子通常被认为对其光电性质影响不大。然而，最近的研究揭示了 A 阳离子在调控 OLHP 的物理化学和光电性质方面的关键作用。我们回顾了 A 阳离子多功能性带来的重要突破，并强调了与 OLHP 中的 A 阳离子相关的潜在机遇和未解决的问题。
