Highly Stable Orange-Red Long-Persistent Luminescent CsCdCl3 :Mn2+ Perovskite Crystal.
Angew Chem Int Ed Engl
; 61(48): e202208937, 2022 Nov 25.
Article
en En
| MEDLINE
| ID: mdl-36197752
ABSTRACT
Halide perovskite has been widely studied as a new generation of photoelectronic materials. However, their thermal and humidity-induced emission quenching have greatly limited their utility and reliability. Here, we report a hexagonal Mn2+ -doped CsCdCl3 perovskite crystal that possesses stable photoluminescence (PL) at both high temperature and humidity. The room temperature long-persistent luminescence (LPL) of the single crystals lasts up to 1480â
s and can be adjusted by changing the concentration of Mn2+ ion doping. The characteristic emission of d-d transition of Mn2+ is realized, and the photoluminescence quantum yield (PLQY) is up to 91.4 %, it can maintain more than 90 % of the initial PL spectral integral area at 150 °C (423â
K). High humid stability PL can be achieved more than 75 % of the initial PL intensity after 55â
days of immersion in water. These excellent properties show the application prospect of the LPL material in lighting indication and anti-counterfeiting.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Año:
2022
Tipo del documento:
Article
País de afiliación:
China