Enhancement in external quantum efficiency of light-emitting diode based on colloidal silicon nanocrystals.
Nanotechnology
; 32(50)2021 Oct 18.
Article
em En
| MEDLINE
| ID: mdl-34584021
ABSTRACT
Herein, we report an enhanced red emission from colloidal silicon nanocrystals (c-Si NCs) solution-processed light-emitting diode. c-Si NCs were synthesized by facile femtosecond laser ablation. Based on the structural characterization and opto-electrics properties analysis, both photoluminescence and electroluminescence arise from the radiative recombination of carriers due to quantum confined effect. The optical power density and highest external quantum efficiency have been obtained to be 0.79 mW cm-2and â¼6.6%, respectively. These results indicate that Si NCs are very attractive as a potential optical source for future integrated chips.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Nanotechnology
Ano de publicação:
2021
Tipo de documento:
Article