Effects of solution processing and thermal annealing on the phosphorescence of iridium(III) complex-cored dendrimer films

J. C. Ribierre, C. J. Yates, A. Ruseckas, S. V. Staton, P. L. Burn, I. D.W. Samuel

研究成果: Contribution to journalArticle査読

5 被引用数 (Scopus)

抄録

We present evidence that the photoluminescence (PL) spectrum, PL kinetics and PL efficiency of solution-cast films of a phosphorescent fac-tris(2-phenylpyridyl)iridium(III)-cored dendrimer are not affected by the choice of solvent and thermal annealing. In contrast, when the dendrimer is dispersed into a 4,4′-bis(N-carbazolyl)biphenyl (CBP) host, thermal annealing induces phase separation at a micrometer scale, which results in incomplete energy transfer from CBP to the dendrimer. The insensitivity of the dendrimer film morphology and PL properties to the casting conditions and thermal treatment shows the advantage of host-free electrophosphorescent dendrimers for the further development of light-emitting displays, whilst blended systems are potentially more suitable for photovoltaic applications.

本文言語英語
ページ(範囲)62-66
ページ数5
ジャーナルOrganic Electronics
11
1
DOI
出版ステータス出版済み - 1 2010

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学
  • 電子工学および電気工学

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