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Highly Stable Inorganic Lead Halide Perovskite toward Efficient Photovoltaics
Accounts of Chemical Research ( IF 18.3 ) Pub Date : 2021-08-24 , DOI: 10.1021/acs.accounts.1c00343
Yuetian Chen 1 , Xiaomin Liu 1 , Tianfu Wang 1 , Yixin Zhao 1
Affiliation  

Owing to the remarkable progress achieved over the past decade with research efforts from the perspectives of material synthesis, device configuration, and theoretical investigation, metal halide perovskites have emerged as a revolutionary class of light-absorbing semiconductors. The perovskite photovoltaic devices have demonstrated an impressive increase in power conversion efficiency. For single-junction perovskite solar cells, the value has risen from the initial one-digit maximum to the state-of-art record of 25.5%. Among various chemical and structural variations of perovskites, inorganic lead halides possess a more favorable operational stability and hold greater potential for perovskite/silicon tandem photovoltaics’ top cells. At the initial stage of exploring all-inorganic perovskites for optoelectronic applications, many concepts, technical routes, and modification strategies were directly adopted from research on the more-developed field of organic–inorganic hybrid perovskite (OIHP). However, as understandings on inorganic perovskite deepen with research experience gained from both experimental and theoretical progression, it has been found that the difference between the asymmetric, volatile organic cations and the spherical, stable inorganic cations can lead to drastic changes on overall material properties and the subsequent device performances. In detail, the disparities reflect the crystalline and phase profiles of the material, the fabrication and passivation rationales of perovskite thin films, and the photophysics in the assembled optoelectronic devices. Therefore, the discussions of all-inorganic perovskites have their own exclusivity and are worthy of a specialized scrutinization.

中文翻译:

用于高效光伏的高度稳定的无机卤化铅钙钛矿

由于过去十年来从材料合成、器件配置和理论研究的角度进行的研究工作取得了显着进展,金属卤化物钙钛矿已成为一种革命性的吸光半导体。钙钛矿光伏器件在功率转换效率方面表现出令人印象深刻的提高。对于单结钙钛矿太阳能电池,该值已从最初的一位数最大值上升到 25.5% 的最新记录。在钙钛矿的各种化学和结构变化中,无机卤化铅具有更有利的操作稳定性,并且在钙钛矿/硅串联光伏顶部电池方面具有更大的潜力。在探索用于光电应用的全无机钙钛矿的初始阶段,许多概念,技术路线和改性策略直接来自于更发达的有机-无机杂化钙钛矿(OIHP)领域的研究。然而,随着从实验和理论进展中获得的研究经验加深对无机钙钛矿的理解,人们发现不对称的挥发性有机阳离子与球形稳定的无机阳离子之间的差异会导致整体材料性能和随后的设备性能。具体而言,差异反映了材料的晶体和相位分布、钙钛矿薄膜的制造和钝化原理,以及组装的光电器件中的光物理。所以,
更新日期:2021-09-07
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