P-type semiconducting dendrimers bearing thiophenyl peripheral moieties: Effect of alkyl chains on molecular packing geometry

Kyung Hwan Kim, Zhenguo Chi, Min Ju Cho, Jung Il Jin, Dong Hoon Choi, Sang Hyon Paek

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

First generation thiophene-labeled conjugated dendrimers have been synthesized through the Heck coupling reaction between the 5-vinyl-[2,2'] bithiophenyl derivative and 1,2,4,5-tetrabromo-benzene as a core. One dendrimer has hexyl groups at the periphery and the other does not have it. They display a considerably better solubility than the linear conjugated oligothiophene. We observe drastic spectral change in a film state of dendrimer due to crystallization and a high extent of intermolecular interaction. Effect of peripheral alkyl groups on the intermolecular interaction and lamella orderness was investigated using two dendrimers.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalMacromolecular Symposia
Volume249-250
DOIs
Publication statusPublished - 2007

Keywords

  • Conjugated dendrimer
  • Intermolecular interaction
  • Intramolecular conjugation
  • Semiconductor

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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