Synthesis and characterization of φ-conjugated multi-branched molecules bearing carbazole and phenothiazine peripheral groups

Min Ju Cho, Tae Wan Lee, Jung Il Jin, Byeong Kwon Ju, Dong Hoon Choi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A novel class of conjugated multi-branched molecules bearing N-hexyl substituted carbazoles and phenothiazine as peripheral groups and [2,4,5-Tris-(diethoxyphosphorylmethyl)benzyl]phosphonic acid diethyl ester core has been synthesized through Horner-Emmons reaction in moderate to good yield. 8HCz-Den and 8HPTz-Den molecules have absorption maxima at 349 and 381nm in solution states and maximum PL intensities were observed at 434 and 506nm, respectively. They exhibited good self-film forming properties by solution casting and spin coating. In particular, by doping [2,6-bis(2-(5-(dibutylamino) phenyl)vinyl)-4H-pyran-4-ylidene]propanedinitrile, red emission could be achieved through complete Forster energy transfer process from the light harvesting host to the guest molecule.

Original languageEnglish
Pages (from-to)80-87
Number of pages8
JournalMolecular Crystals and Liquid Crystals
Volume491
DOIs
Publication statusPublished - 2008

Keywords

  • Absorption
  • Electroluminescence
  • Energy transfer
  • Multi-branched molecule
  • Photoluminescence

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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