Lattice Stabilized and Emission Tunable Pure-Bromide Quasi-2D Perovskite for Air-Processed Blue Light-Emitting Diodes.

ABSTRACT: Realizing air-processed blue halide perovskite films with tailored emission is significant for promoting the commercialization of perovskite light-emitting diodes (PeLEDs). However, the intrinsically inferior thermodynamic stability and laborious crystallization kinetics control under humidity interference limit the fabrication of blue perovskite emitters in ambient air. Here, air-processed pure-bromide quasi-2D blue perovskite films are achieved with stabilized lattice and tunable emission by interstitial doping of trivalent metallic cations. This strategy improves the formation energy of the perovskite lattice, promotes energy transfer between different n phases, and suppresses intrinsic electron-phonon coupling in the perovskite films. The emission-controllable blue PeLEDs are fabricate

SUBMITTER: Guo Y 

PROVIDER: S-EPMC11791954 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature