A universal hydrochloric acid-assistant powder-to-powder strategy for quick and mass preparation of lead-free perovskite microcrystals.

ABSTRACT: Lead-free halide perovskite materials possess low toxicity, broadband luminescence and robust stability compared with conventional lead-based perovskites, thus holding great promise for eyes-friendly white light LEDs. However, the traditionally used preparation methods with a long period and limited product yield have curtailed the commercialization of these materials. Here we introduce a universal hydrochloric acid-assistant powder-to-powder strategy which can accomplish the goals of thermal-, pressure-free, eco-friendliness, short time, low cost and high product yield, simultaneously. The obtained Cs₂Na_0.9Ag_0.1In_0.95Bi_0.05Cl₆ microcrystals exhibit bright self-trapped excitons emission with quantum yield of (98.3 ± 3.8)%, w

SUBMITTER: Yang H 

PROVIDER: S-EPMC10025261 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature