Photoluminescence enhancement by gold nanoparticles in Eu(3+) doped GeO(2)-Bi(2)O(3) glasses


Autoria(s): KASSAB, Luciana R. P.; SILVA, Diego S. da; ALMEIDA, Ricardo de; ARAUJO, Cid B. de
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

17/04/2012

17/04/2012

2009

Resumo

We report large photoluminescence (PL) enhancement in Eu(3+)-doped GeO(2)-Bi(2)O(3) glasses containing gold nanoparticles (NPs). Growth of approximate to 1000% in the PL intensity corresponding to the Eu(3+) transition (5)D(0)->(7)F(2), at 614 nm, was observed in comparison with a reference sample that does not contain gold NPs. Other PL bands from 580 to 700 nm are also enhanced. The enhancement of the PL intensity is attributed to the increased local field in the Eu(3+) locations due to the presence of the NPs and the energy transfer from the excited NPs to the Eu(3+) ions.

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)

Fundacao de Amparo a Ciencia e Tecnologia do Estado de Pernambuco (FACEPE)

Identificador

APPLIED PHYSICS LETTERS, v.94, n.10, 2009

0003-6951

http://producao.usp.br/handle/BDPI/14728

10.1063/1.3097241

http://dx.doi.org/10.1063/1.3097241

Idioma(s)

eng

Publicador

AMER INST PHYSICS

Relação

Applied Physics Letters

Direitos

openAccess

Copyright AMER INST PHYSICS

Palavras-Chave #bismuth compounds #europium compounds #germanate glasses #gold compounds #nanoparticles #photoluminescence #spectral line intensity #SILVER #Physics, Applied
Tipo

article

original article

publishedVersion