Temperature measurements of the PEDOT-PSS layer in a polymer light-emitting diode by stokes and anti-stokes Raman scattering

Takuro Sugiyama, Hiroya Tsuji, Yukio Furukawa

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Abstract

We have observed Stokes and anti-Stokes Raman scattering from an operating double-layer polymer light-emitting diode fabricated with poly(3,4-ethylenedioxythiophene)-poly(4-styrenesulfonate) (PEDOT-PSS) as a hole-injection layer (50 nm thickness) and a polyfluorene-based polymer blend as a light-emitting layer (90 nm thickness) with excitation at 633 nm. The temperature of the PEDOT-PSS layer was estimated to be 74 ± 6 °C at a current of 150 mA/cm2 (1000 cd/m2), whereas that of the glass surface measured by a thermocouple was 41 °C.

Original languageEnglish
Pages (from-to)238-241
Number of pages4
JournalChemical Physics Letters
Volume453
Issue number4-6
DOIs
Publication statusPublished - 2008 Mar 3

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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