Highly efficient near-infrared emission in Er3+ doped silica films containing size-tunable SnO2 nanocrystals.
Opt Express
; 22(1): 369-76, 2014 Jan 13.
Article
em En
| MEDLINE
| ID: mdl-24514997
ABSTRACT
Co-doping size-tunable SnO2 nanocrystals into Er(3+) ions embedded silica thin films produces an enhancement of Er-related near-infrared emission by three orders of magnitude. Selective PL and PLE measurements show that energy transfer process occurs between SnO2 nanocrystals and Er(3+) ions. Quantitative studies of PL decay lifetime and photoluminescence temperature-dependence demonstrate that both high energy transfer efficiency from SnO2 nanocrystals to Er(3+) ions and the partial incorporation of Er(3+) ions into SnO2 nanocrystals contribute to the near-infrared emission enhancement. All these results indicated that SnO2 nanocrystals with suitable size have great potentials in fabricating high-efficiency near-infrared luminous materials as sensitizers of Er(3+) ions.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Iluminação
/
Compostos de Estanho
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Nanoestruturas
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Érbio
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Medições Luminescentes
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Membranas Artificiais
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article