Study of exciton migration phenomenon in polymer light-emitting diodes ∼Temperature dependence of PL characteristics in polymer light-emitting diodes∼

Hideki Uchida, Masayoshi Fujita, Mitsuhiro Koden, Chihaya Adachi

Research output: Contribution to conferencePaper

Abstract

We investigated the excitation energy transfer in polymer light-emitting diodes by measuring the temperature dependence of the PL intensity and fluorescence lifetime of a single layer light-emitting polymer (LEP) and multi-layers (PEDOT-PSS/LEP and LEP/Ca/Ag). We prepared several films with different thicknesses by changing the concentration of xylene solution and spin coating condition. We observed significant differences in the temperature dependence of PL intensity among these three structures. The experimental results suggest that exciton transfer is influenced by the interface in multi-layer structures. We also found that the polymer morphology has great effect on the PL characteristics.

Original languageEnglish
Pages4448-4449
Number of pages2
Publication statusPublished - Dec 1 2005
Externally publishedYes
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sep 20 2005Sep 22 2005

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period9/20/059/22/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Uchida, H., Fujita, M., Koden, M., & Adachi, C. (2005). Study of exciton migration phenomenon in polymer light-emitting diodes ∼Temperature dependence of PL characteristics in polymer light-emitting diodes∼. 4448-4449. Paper presented at 54th SPSJ Symposium on Macromolecules, Yamagata, Japan.