Ultralow-threshold quasi-CW lasing from FAPbBr3perovskite first-order DFB laser.
Nanotechnology
; 34(17)2023 Feb 10.
Article
em En
| MEDLINE
| ID: mdl-36696688
ABSTRACT
Metal halide perovskites are emerging materials for integrated photonics. Here we report a quasi-CW pumped ultra-low ASE/lasing threshold formamidinium lead bromide (FAPbBr3) laser. The laser achieved stable lasing at 555 nm with a full width at half maximum (FWHM) of 0.6 nm, showing a low lasing threshold of 22.6µJ cm-2under 3.5 nanosecond quasi-CW excitation at room temperature. The material also showed an ultra-low ASE threshold of 46µJ cm-2under the same pumping condition. Through polymer doping, we showed that the material's performance can be improved by increasing bimolecular recombination rate with reduced grain size.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Nanotechnology
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Estados Unidos