With hybrid lead halide perovskites, a new class of materials for photovoltaics emerged, approaching GaAs in their optoelectronic properties. However, issues concerning toxicity and instability of lead-based perovskites impede their commercialization. Therefore, alternative lead-free solution-processable semiconductors have attracted increasing attention. The focus is mainly on compounds with structural similarities to the three-dimensional network of the lead halide octahedra in the perovskite structure. Furthermore, additional metal halides or chalcogenides have emerged with non-perovskite-related crystal structures but promising physical properties. This review will discuss recent progress on lead-free perovskite-inspired materials suitable for optoelectronics, considering their structure as well as their physical properties and resulting implications for device applications.

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用于光伏应用的无铅钙钛矿启发材料的前景

随着混合卤化钙钛矿的出现，出现了一种新型的光伏材料，其光电性能已接近GaAs。但是，有关铅基钙钛矿的毒性和不稳定性的问题阻碍了它们的商业化。因此，替代的无铅可溶液处理的半导体引起了越来越多的关注。重点主要是与钙钛矿结构中与卤化铅八面体的三维网络具有结构相似性的化合物。此外，已经出现了具有与钙钛矿无关的晶体结构但有希望的物理性质的其他金属卤化物或硫属元素化物。这篇评论将讨论适用于光电子学的无铅钙钛矿启发材料的最新进展，