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Luminescence Behavior of Organo-Ruthenium Complexes Entrapped Within Sol-Gel Hosts

Published online by Cambridge University Press:  15 February 2011

Lowell R. Matthews ,
Xiao-Jun Wang  and
E. T. Knobbe
Lowell R. Matthews
Affiliation:
Department of Chemistry and University Center for Laser Research, Oklahoma State University, Stillwater, OK, U.S.A. 74078–0447
Xiao-Jun Wang
Affiliation:
Department of Chemistry and University Center for Laser Research, Oklahoma State University, Stillwater, OK, U.S.A. 74078–0447
E. T. Knobbe
Affiliation:
Department of Chemistry and University Center for Laser Research, Oklahoma State University, Stillwater, OK, U.S.A. 74078–0447
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Abstract

Compounds of europium(III) and ruthenium(II) are of interest for potential optical source applications in the red portion of the visible spectrum. Our previous work showed that the organo-europium complex tris(4,4,4-trifluoro-l-(2′-thienyl)-l,3-butanedionato-O, O′)europium( III), Eu(ttfa)3, demonstrated superior fluorescence properties to salts like europium(III) chloride when doped into sol-gel materials. The ruthenium complex tris(2,2′- bipyridyl)ruthenium(II) chloride, ‘Ru(bpy)3’Cl2, also shows strong fluorescence when doped into sol-gel materials.

Luminescence behavior of the ‘;Ru(bpy)3’Cl2 complex has been investigated as a function of matrix composition using three sol-gel-derived hosts: silica, an acrylate ORMOSIL, and an epoxide ORMOSIL. Luminescence characteristics have also been studied as a function of fluorophore concentration. Fluorescence lifetime, excitation and emission spectra, and quantum efficiency values have been determined.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 329: Symposium R – New Materials for Advanced Solid State Lasers , 1993 , 285
Copyright
Copyright © Materials Research Society 1994

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