Highly bright perovskite light-emitting diodes enabled by retarded Auger recombination.

ABSTRACT: One of the key advantages of perovskite light-emitting diodes (PeLEDs) is their potential to achieve high performance at much higher current densities compared to conventional solution-processed emitters. However, state-of-the-art PeLEDs have not yet reached this potential, often suffering from severe current-efficiency roll-off under intensive electrical excitations. Here, we demonstrate bright PeLEDs, with a peak radiance of 2409 W sr^-1 m^-2 and negligible current-efficiency roll-off, maintaining high external quantum efficiency over 20% even at current densities as high as 2270 mA cm^-2. This significant improvement is achieved through the incorporation of electron-withdrawing trifluoroacetate anions into three-dimensional perovskite emitters, resulting in

SUBMITTER: Li Z 

PROVIDER: S-EPMC11754759 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature