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The effect of exciton dimensionality on resonance energy transfer: advances for organic color converters in hybrid inorganic/organic LEDs

The effect of exciton dimensionality on resonance energy transfer: advances for organic color converters in hybrid inorganic/organic LEDs
The effect of exciton dimensionality on resonance energy transfer: advances for organic color converters in hybrid inorganic/organic LEDs
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.
LEDs, semiconductor physics, quantum well, energy transfer, time resolved spectroscopy, ultra-fast spectroscopy, hybrid organic/inorganic devices
0277-786X
Rindermann, Jan Junis
2e54f42c-5f5e-45bb-b2b1-ea4c63a55044
Pozina, Galia
83be0072-f18c-4d2b-b38f-77af0336f07c
Monemar, Bo
8e573e12-aa7e-40ef-872a-43fab4b26b88
Hultman, Lars
67883278-8ce8-4d2f-8038-141388b2d183
Amano, Hiroshi
94d9417b-15ed-4b27-b67a-7e4ad80e99f4
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf
Rindermann, Jan Junis
2e54f42c-5f5e-45bb-b2b1-ea4c63a55044
Pozina, Galia
83be0072-f18c-4d2b-b38f-77af0336f07c
Monemar, Bo
8e573e12-aa7e-40ef-872a-43fab4b26b88
Hultman, Lars
67883278-8ce8-4d2f-8038-141388b2d183
Amano, Hiroshi
94d9417b-15ed-4b27-b67a-7e4ad80e99f4
Lagoudakis, Pavlos G.
ea50c228-f006-4edf-8459-60015d961bbf

Rindermann, Jan Junis, Pozina, Galia, Monemar, Bo, Hultman, Lars, Amano, Hiroshi and Lagoudakis, Pavlos G. (2012) The effect of exciton dimensionality on resonance energy transfer: advances for organic color converters in hybrid inorganic/organic LEDs. Proceedings of SPIE, 8255. (doi:10.1117/12.908339).

Record type: Article

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.

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Published date: 2012
Keywords: LEDs, semiconductor physics, quantum well, energy transfer, time resolved spectroscopy, ultra-fast spectroscopy, hybrid organic/inorganic devices

Identifiers

Local EPrints ID: 430543
URI: http://eprints.soton.ac.uk/id/eprint/430543
ISSN: 0277-786X
PURE UUID: 113e75ba-7854-470c-94d2-742fee9b101a

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Date deposited: 03 May 2019 16:30
Last modified: 03 May 2019 16:30

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