Room-temperature post-synthetic doping in perovskite has drawn much attention for its looser condition and controllable doping. Compared with direct synthesis, the kinetic progress in post-synthetic doping is unique and may provide new methods for the manipulation of doping. In this work, the kinetic progress during post-synthetic doping in 2D perovskite nanoplatelets (NPLs) is studied. It was found that in spite of the feeding ratio, the concentration of dopant precursor can also affect post-synthetic doping progress. Afterwards, Mn was doped into 2D perovskite NPLs through fixed-volume doping and fixed-concentration doping for comparison and both methods can realize white-light emission.

钙钛矿中的室温后合成掺杂因其较松散的状态和可控的掺杂而备受关注。与直接合成相比，后合成掺杂的动力学进展是独一无二的，可能为操纵掺杂提供新的方法。在这项工作中，研究了二维钙钛矿纳米片（NPL）中合成后掺杂过程中的动力学进展。发现尽管进料比不同，掺杂剂前体的浓度也会影响合成后的掺杂进程。然后，通过固定体积掺杂和固定浓度掺杂将 Mn 掺杂到二维钙钛矿 NPL 中进行比较，两种方法都可以实现白光发射。