Single-nanocrystal spectroscopy of white-light-emitting CdSe nanocrystals.
J Phys Chem A
; 115(16): 4076-81, 2011 Apr 28.
Article
em 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
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos de Selênio
/
Compostos de Cádmio
/
Nanotecnologia
/
Nanoestruturas
Idioma:
En
Revista:
J Phys Chem A
Assunto da revista:
QUIMICA
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Estados Unidos