Abstract Single and mixed-halide perovskite solar cells (PSCs) have attracted a lot of research attention in recent years due to their solution process-ability, lightweight and excellent photoelectric conversion which are the necessary conditions for low-cost thin-film solar cell technology. The power conversion efficiency (PCE) of solid-state PSCs has risen quickly to a certified value as high as 22%. There is still tremendous potential for the realization of highly efficient solution processable perovskite-based solar cell. The perovskite produced by way of mixing halogen elements, such as CH3NH3PbI3–xClx and CH3NH3PbI3–xBrx, offered several benefits such as enhanced device stability, improved carrier transport and reduced carrier recombination. Single crystal perovskite film containing organic and inorganic cation reported to have broad optical absorption which covers significant part of the solar spectrum. It also exhibited good thermal stability compared to single halide such as CH3NH3PbI3. The device configuration of PSCs and the choice of suitable hole/electron transport materials played a significant role in the device performances. This review article reports on the recent advances of solution processed PSC with emphasis on the role played by mixed halide elements on the performance of devices.

中文翻译：

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混合卤化物钙钛矿太阳能电池：进展与挑战

摘要 单卤化物和混合卤化物钙钛矿太阳能电池（PSCs）由于其溶液加工能力强、重量轻、光电转换性能好是低成本薄膜太阳能电池技术的必要条件，近年来引起了广泛的研究关注。 . 固态 PSC 的功率转换效率 (PCE) 已迅速上升至高达 22% 的认证值。实现高效溶液可加工钙钛矿基太阳能电池仍有巨大潜力。通过混合卤素元素（例如 CH3NH3PbI3–xClx 和 CH3NH3PbI3–xBrx）生产的钙钛矿具有多种优势，例如增强器件稳定性、改善载流子传输和减少载流子复合。据报道，含有有机和无机阳离子的单晶钙钛矿薄膜具有广泛的光吸收，覆盖了太阳光谱的重要部分。与单一卤化物（如 CH3NH3PbI3）相比，它还表现出良好的热稳定性。PSC 的器件配置和合适的空穴/电子传输材料的选择对器件性能起着重要作用。这篇评论文章报告了溶液处理 PSC 的最新进展，重点是混合卤化物元素对器件性能的影响。PSC 的器件配置和合适的空穴/电子传输材料的选择对器件性能起着重要作用。这篇评论文章报告了溶液处理 PSC 的最新进展，重点是混合卤化物元素对器件性能的影响。PSC 的器件配置和合适的空穴/电子传输材料的选择对器件性能起着重要作用。这篇评论文章报告了溶液处理 PSC 的最新进展，重点是混合卤化物元素对器件性能的影响。