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

Jan Junis Rindermann, Galia Pozina, Bo Monemar, Lars Hultman, Hiroshi Amano, Pavlos G. Lagoudakis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

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.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XX
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventPhysics and Simulation of Optoelectronic Devices XX - San Francisco, CA, United States
Duration: 23 Jan 201226 Jan 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8255
ISSN (Print)0277-786X

Conference

ConferencePhysics and Simulation of Optoelectronic Devices XX
Country/TerritoryUnited States
CitySan Francisco, CA
Period23/01/1226/01/12

Keywords

  • Energy transfer
  • Hybrid organic/inorganic devices
  • LEDs
  • Quantum well
  • Semiconductor physics
  • Time resolved spectroscopy
  • Ultra-fast spectroscopy

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