Operando recombination kinetics in perovskite nanocrystal films revealed by in situ time-resolved photoluminescence.

ABSTRACT: Perovskite nanocrystals have shown great promise for optoelectronic applications. Understanding charge recombination under operational conditions, such as continuous-wave photoexcitation, is crucial for advancing device performance. Although time-resolved photoluminescence is widely used to study recombination kinetics, its reliance on ultrafast pulsed excitation fails to replicate the operational conditions. Here we develop an integrated spectroscopy platform that enables simultaneous acquisition of steady-state and time-resolved photoluminescence under continuous-wave illumination, with a wide range of photoexcitation intensity modulation. This approach resolves the long-standing mismatch between the typical time-resolved photoluminescence data and the actual continuous-wave operational

SUBMITTER: Cao D 

PROVIDER: S-EPMC12728232 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature