DocumentCode :
2155535
Title :
Fluorescence enhancement of MEH-PPV by temperature dependent energy transfer in an inorganic-organic composite system
Author :
Neves, A.A.R. ; Camposeo, A. ; Cingolani, R. ; Pisignano, D.
Author_Institution :
Univ. di Lecce, Lecce
fYear :
2007
fDate :
17-22 June 2007
Firstpage :
1
Lastpage :
1
Abstract :
We investigate quantitatively the temperature dependent fluorescence enhancement due to nonradiative energy transfer in an inorganic-organic composite system. The composite material is a blend of an optically inert poly(methylmethacrylate) (PMMA) with ZnO microcystals, as donor, doped with the conjugated polymer, poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) as acceptor. The nonradiative energy transfer process is supposed to be the dominant transfer mechanism, since donor-acceptor pairs (satisfying the criterion of spectral overlap) are distributed throughout the entire volume rather than in a layered heterostructure, thus having a larger number of acceptor molecules in close proximity of an excited donor.
Keywords :
nanocomposites; optical polymers; organic semiconductors; organic-inorganic hybrid materials; photoluminescence; MEH-PPV; conjugated polymer; donor-acceptor pair; fluorescence enhancement; inorganic-organic composite system; nonradiative energy transfer; optically inert polymer; temperature dependent energy transfer; Energy exchange; Fluorescence; Interconnected systems; Laser excitation; Nanocomposites; Nanotechnology; Optical polymers; Organic materials; Temperature dependence; Zinc oxide;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
Type :
conf
DOI :
10.1109/CLEOE-IQEC.2007.4386171
Filename :
4386171
Link To Document :
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