High-performance shortwave-infrared light-emitting devices using core-shell (PbS-CdS) colloidal quantum dots.
Adv Mater
; 27(8): 1437-42, 2015 Feb 25.
Article
em En
| MEDLINE
| ID: mdl-25639896
ABSTRACT
Core-shell PbS-CdS quantum dots enhance the peak external quantum efficiency of shortwave-infrared light-emitting devices by up to 50-100-fold (compared with core-only PbS devices). This is more than double the efficiency of previous quantum-dot light-emitting devices operating at wavelengths beyond 1 µm, and results from the passivation of the PbS cores by the CdS shells against in situ photoluminescence quenching.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Adv Mater
Assunto da revista:
BIOFISICA
/
QUIMICA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Estados Unidos