Publicação: Spectral redistribution of waveguided emission in BEH-PPV films
Carregando...
Data
Autores
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Taylor & Francis Ltd
Tipo
Artigo
Direito de acesso
Acesso restrito
Resumo
We report on spectral redistribution of the photoluminescence (PL) emission from the edge of thin-film planar waveguides of the conjugated polymer BEH-PPV [Poly(2,5-bis(2'-ethyl-hexyl)-1,4-phenylenevinylene] induced by self-absorption in the polymer film. The PL spectra present drastic changes and displace to longer wavelengths with increasing self-absorption. We observe an enhancement of the absolute PL intensity at longer wavelengths, which was interpreted as due to re-emission of self-absorbed photons. The significant efficiency for the PL re-emission suggests the use of self-absorption as a mechanism for tuning the emission into the near infrared.
Descrição
Palavras-chave
BEH-PPV, photoluminescence, self-absorption, thin-film waveguides, spectral redistribution, conjugated polymers
Idioma
Inglês
Como citar
Molecular Crystals and Liquid Crystals. Abingdon: Taylor & Francis Ltd, v. 374, p. 445-450, 2002.
