The strong binding between CsPbBr₃ nanocrystals and methyl viologen induces a long-lived charge-separated state following band gap excitation with important implications in photocatalytic processes. The unusually long-lived bleaching of the CsPbBr₃ excitonic peak in this case arises from the creation of a dipole with the hole residing in CsPbBr₃ and the electron in the surface-bound methyl viologen moiety.

中文翻译：

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钙钛矿光催化。甲基紫精诱导CsPbBr ₃纳米晶体中异常长寿命的电荷载流子分离

在带隙激发之后，CsPbBr ₃纳米晶体与甲基紫精之间的强结合诱导了长寿命的电荷分离状态，这对光催化过程具有重要意义。在这种情况下，CsPbBr ₃激子峰的异常长寿命漂白是由偶极子的产生引起的，该偶极子的空穴位于CsPbBr _3中，电子在表面结合的甲基紫精部分中。