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Proceedings Paper

Frequency-resolved delayed fluorescence (DF) and photoluminescence detected magnetic resonance (PLDMR) studies of triplet and polaron dynamics in π-conjugated materials and devices
Author(s): Joseph Shinar; B. L. Uhlhorn; Jonathan Partee; Chang-Hwan Kim; Moon Ky Lee; Emil J. W. List; Wilhelm Graupner; Guenther Leising
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Paper Abstract

The DF and PLDMR of triplet exciton and polaron dynamics in (pi) -conjugated materials and devices is reviewed, and the significance of various processes involving these long-lived excitations is considered. These include the generation of singlet excitons by triplet-triplet annihilation, which leads to DF, and nonradiative quenching of such singlets by polarons or triplet excitons. The clear differences between the roles of these processes in (pi) -conjugated polymers vs small molecules and their implications for organic light emitting devices are discussed.

Paper Details

Date Published: 17 December 1999
PDF: 13 pages
Proc. SPIE 3797, Organic Light-Emitting Materials and Devices III, (17 December 1999); doi: 10.1117/12.372699
Show Author Affiliations
Joseph Shinar, Iowa State Univ. (United States)
B. L. Uhlhorn, Iowa State Univ. (United States)
Jonathan Partee, Iowa State Univ. (United States)
Chang-Hwan Kim, Iowa State Univ. (United States)
Moon Ky Lee, Iowa State Univ. (United States)
Emil J. W. List, Iowa State Univ. and Technische Univ. Graz (Austria)
Wilhelm Graupner, Virginia Polytechnic and State Univ. (United States)
Guenther Leising, Technische Univ. Graz (Austria)

Published in SPIE Proceedings Vol. 3797:
Organic Light-Emitting Materials and Devices III
Zakya H. Kafafi, Editor(s)

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