Postorino Paolo, Malavasi Lorenzo
Physics Department, University of Rome "Sapienza" , 00185 Rome, Italy.
Chemistry Department, University of Pavia and INSTM , 27100 Pavia, Italy.
J Phys Chem Lett. 2017 Jun 15;8(12):2613-2622. doi: 10.1021/acs.jpclett.7b00347. Epub 2017 May 31.
In this Perspective, we provide an overview of the pressure-induced effects on hybrid organic-inorganic perovskite for photovoltaics applications. It is shown that a fine-tuning of the most relevant photovoltaic properties, including band gap and carrier lifetime, is indeed possible by applying pressure over a rather small range and that such phenomena closely correlate with pressure-induced structural changes. High-pressure research can be used to search for new materials since the high-pressure structural configuration can be used as a model for tailoring ambient pressure compounds under proper chemical substitution, and the band gap tuning and enhancement of carrier lifetime with applied pressures can be a guide to design new hybrid perovskites with desired optical properties as a function of structural parameters.
在这篇观点文章中，我们概述了压力对用于光伏应用的有机-无机杂化钙钛矿的影响。结果表明，通过在相当小的压力范围内施加压力，确实可以对包括带隙和载流子寿命在内的最相关光伏特性进行微调，并且这些现象与压力诱导的结构变化密切相关。高压研究可用于寻找新材料，因为高压结构构型可作为在适当化学取代下定制常压化合物的模型，并且施加压力时带隙的调节和载流子寿命的提高可为设计具有所需光学性质（作为结构参数函数）的新型杂化钙钛矿提供指导。
