Lead-free Double Perovskite Cs₂ AgIn_0.9 Bi_0.1 Cl₆ Quantum Dots for White Light-Emitting Diodes.

ABSTRACT: Perovskite-based optoelectronic devices have attracted considerable attention owing to their excellent device performances and facile solution processing. However, the toxicity and intrinsic instability of lead-based perovskites have limited their commercial development. Moreover, the provision of an efficient white emission from a single perovskite layer is challenging. Here, novel electrically excited white light-emitting diodes (WLEDs) based on lead-free double perovskite Cs₂ AgIn_0.9 Bi_0.1 Cl₆ quantum dots (QDs) without any phosphor are fabricated for the first time. Density functional theory calculations are carried out to clarify the mechanism of absorption and recombination in Cs₂ AgIn_0.9 Bi_0.1 Cl₆

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC8805553 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature