Journal article
Manipulation of the electroluminescence of organic light-emitting diodes via fringe fields from patterned magnetic domains
Applied physics letters, Vol.109(24), p.243303
08/18/2016
DOI: 10.1063/1.4971332
Abstract
Applied Physics Letters 109, 243303 (2016) We predict very large changes in the room-temperature electroluminescence of
thermally-activated delayed fluorescence organic light emitting diodes near
patterned ferromagnetic films. These effects exceed the changes in a uniform
magnetic field by as much as a factor of two. We describe optimal ferromagnetic
film patterns for enhancing the electroluminescence. A full theory of the
spin-mixing processes in exciplex recombination, and how they are affected by
hyperfine fields, spin-orbit effects, and ferromagnetic fringe field effects is
introduced, and is used to describe the effect of magnetic domain structures on
the luminescence in various regimes. This provides a method of enhancing light
emission rates from exciplexes and also a means of efficiently coupling
information encoded in magnetic domains to organic light emitting diode
emission.
Details
- Title: Subtitle
- Manipulation of the electroluminescence of organic light-emitting diodes via fringe fields from patterned magnetic domains
- Creators
- Nicholas J Harmon - University of IowaMichael E Flatté - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Applied physics letters, Vol.109(24), p.243303
- DOI
- 10.1063/1.4971332
- ISSN
- 0003-6951
- eISSN
- 1077-3118
- Grant note
- DOI: 10.13039/100000015, name: U.S. Department of Energy, award: DE-SC0014336
- Language
- English
- Date published
- 08/18/2016
- Academic Unit
- Electrical and Computer Engineering; Physics and Astronomy
- Record Identifier
- 9984199737302771
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