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Proceedings Paper

The effect of exciton dimensionality on resonance energy transfer: advances for organic color converters in hybrid inorganic/organic LEDs
Author(s): Jan Junis Rindermann; Galia Pozina; Bo Monemar; Lars Hultman; Hiroshi Amano; Pavlos G. Lagoudakis
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Paper Abstract

The dependence of resonance energy transfer from Wannier-Mott excitons to an organic overlayer on exciton dimensionality is studied experimentally and by means of supporting simulations. The variation of temperature effectively tunes the balance between localized and free excitons, and allows to investigate the effect of the excitonic potential disorder on resonance energy transfer. Our theoretical calculations give insight into the experimentally observed temperature dependence of resonance energy transfer, and allow us to quantify the contribution from localized and free excitons. It is shown that free excitons can undergo resonance energy transfer at a rate that is an order of magnitude higher compared to localized excitons. In planar geometries nonradiative resonance energy transfer is dominating over radiative energy transfer and hence we propose hybrid inorganic-organic LEDs which are optimized for resonance energy transfer to an organic or QD-based color converter.

Paper Details

Date Published: 28 February 2012
PDF: 10 pages
Proc. SPIE 8255, Physics and Simulation of Optoelectronic Devices XX, 82550I (28 February 2012); doi: 10.1117/12.908339
Show Author Affiliations
Jan Junis Rindermann, Univ. of Southampton (United Kingdom)
Galia Pozina, Linköping Univ. (Sweden)
Bo Monemar, Linköping Univ. (Sweden)
Lund Univ. (Sweden)
Lars Hultman, Linköping Univ. (Sweden)
Hiroshi Amano, Nagoya Univ. (Japan)
Pavlos G. Lagoudakis, Univ. of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 8255:
Physics and Simulation of Optoelectronic Devices XX
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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