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

• Author(s): Silva, M. I. ; Burrows, H. D. ; Formosinho, S. J. ; Miguel, M. da G.
• Date: 2001
• Persistent ID: http://hdl.handle.net/10316/5213
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): Polypyridine ruthenium(II) complexes; Luminescence; Triplet energy acceptors; Organic light emitting devices
• Document Type: Article
• Language: English

Description

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