Polarized blue emission based on a side chain liquid crystalline polyacrylate containing bis-tolane side groups

Shu Wen Chang, An Kuo Li, Chih Wei Liao, Chain-Shu Hsu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A novel side chain liquid crystalline (LC) polyacrylate (1P) containing highly conjugated bis-tolane side groups was synthesized and used for polymer light emitting diodes application. Polymer 1P shows a nematic phase at room temperature. It exhibits a UV absorption peak at 330nm and emits a blue light at 425 nm. Polyimide (PI), polyaniline (PA) and poly(3,4diethylenedioxythiophene) (PEDOT) were used as alignment materials for polymer 1P, The photoluminescence dichroic ratios of 1P on rubbed PI, PA and PEDOT films are 10.4, 8.3 and 7.3, respectively. The electroluminescence dichroic ratio of IP aligned on a PEDOT film is 6.1.

Original languageEnglish
Pages (from-to)1374-1378
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume41
Issue number3 A
DOIs
StatePublished - 1 Mar 2002

Keywords

  • Bis-tolane liquid crystal
  • Electroluminescence
  • Photoluminescence
  • Polarized emission
  • Polyacrylate
  • Side chain LC polymer

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