White luminescence from polymer thin films containing excited-state intramolecular proton-transfer dyes

Sehoon Kim, Jangwon Seo, Ho Kuk Jung, Jang Joo Kim, Soo Young Park

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134 Citations (Scopus)


The generation of white luminescence from polymer thin films, which contain excited-state intramolecular proton-transfer (ESIPT) dyes, was analyzed. This approach can be validated by mixing two different ESIPT dyes SOX and DOX with bluish-green (SOX) and orange (DOX) keto emissions in a polymer matrix. It is found that this binary mixture of ESIPT dyes emits broad luminescence in the visible region that is close to a whitish color with Commission Internationale de L'Eclairage (CIE) coordinates. The results show that due to the limited energy transfer, emissions from orange and bluish-green ESIPT dyes could be combined to generate white-light electroluminescence with a maximum luminance of 3100 cd m-2.

Original languageEnglish
Pages (from-to)2077-2082
Number of pages6
JournalAdvanced Materials
Issue number17
Publication statusPublished - 2005 Sep 5
Externally publishedYes


ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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