Room temperature and low-temperature absorption and emission spectra of some po...

• Autor(es): Silva, M. I. ; Burrows, H. D. ; Formosinho, S. J. ; Miguel, M. da G.
• Data: 2001
• Identificador Persistente: http://hdl.handle.net/10316/5213
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): Polypyridine ruthenium(II) complexes; Luminescence; Triplet energy acceptors; Organic light emitting devices
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

Electronic absorption and luminescence spectra are reported for a series of complexes of type [Ru(tpy)(L-L)(py)]2+, where tpy and py are 2,2',2''-terpyridine and pyridine, and L-L represents the bidentate ligands bipyridyl, 4,4'-dimethylbipyridyl, 4-nitrobipyridyl, oxalate and acetylacetonate. The effect of solvent polarity and temperature on their spectral and light emission properties is studied. Energies are reported for the lowest-energy 3MLCT* excited state, and on the basis of these it is suggested that the complexes may make good triplet energy acceptors for use in organic and polymeric light emitting devices. http://www.sciencedirect.com/science/article/B6TGS-433W90H-F/1/6603da98c21c7d9749d77de81e9a0424