Here, silica‐coated CsPbBr₃ quantum dots (QDs) were demonstrated to be effective photosensitizers for the generation of singlet oxygen (¹O₂). The silica encapsulation improved the stability of the perovskite QDs while also preserving an excellent light‐harvesting capability in the visible‐light region. The appropriate exciton binding energy and dark exciton generation characteristics of perovskite QDs may be responsible for the energy transfer. The high oxidizability of ¹O₂ makes the material attractive for application in decomposition of organic dyes such as methyl orange. This work provides new insight for designing excellent perovskite‐based photocatalysts.

中文翻译：

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通过能量转移在二氧化硅包覆的CsPbBr3量子点中有效产生单线态氧，以进行光催化

在这里，二氧化硅涂层的CsPbBr ₃量子点（QDs）被证明是产生单线态氧（¹ O ₂）的有效光敏剂。二氧化硅封装提高了钙钛矿量子点的稳定性，同时在可见光区域保留了出色的光收集能力。钙钛矿量子点的适当激子结合能和暗激子产生特性可能是能量转移的原因。¹ O ₂的高氧化性使该材料具有吸引力，可用于分解有机染料（如甲基橙）。这项工作为设计出色的钙钛矿型光催化剂提供了新的见解。