Single-nanocrystal spectroscopy of white-light-emitting CdSe nanocrystals.
J Phys Chem A
; 115(16): 4076-81, 2011 Apr 28.
Article
en En
| MEDLINE
| ID: mdl-21338163
ABSTRACT
We report the observation of broad-spectrum fluorescence from single CdSe nanocrystals. Individual semiconductor nanocrystals typically have a narrower emission spectrum than that of an ensemble. However, our experiments show that the ensemble white-light emission observed in ultrasmall CdSe nanocrystals is the result of many single CdSe nanocrystals, each emitting over the entire visible spectrum. These results indicate that each white-light-emitting CdSe nanocrystal contains all the trap states that give rise to the observed white-light emission.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Compuestos de Selenio
/
Compuestos de Cadmio
/
Nanotecnología
/
Nanoestructuras
Idioma:
En
Revista:
J Phys Chem A
Asunto de la revista:
QUIMICA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Estados Unidos