Synthesis and characterization of blue-emitting, distyrylstilbenes bearing electron affinitive dendrons

Chi Chung Kwok, Man Shing Wong*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

2 Citations (Scopus)
5 Downloads (Pure)

Abstract

Novel dendron-substituted distyrylstilbenes (OPV-R) in which electron affinitive moieties are on the outer surface of polyether type dendrons have been synthesized for blue-light emission. Both theoretical and optical investigations show that the polyether type dendrons attached at the non-conjugated meta-positions of a distyrylstilbene skeleton do not disrupt the coplanarity of the π-conjugated core. In addition, the dendron-substituted distyrylstilbenes show very high fluorescence quantum yields (over 90%). Single-layer light-emitting diodes using OPV-R doped poly(N-vinylcarbazole) (PVK) film as an emissive layer with structure of (ITO/OPV-R:PVK/Al) were fabricated and investigated. The emission wavelengths and spectral features are very similar among the solution emission, photoluminescence and electroluminescence spectra.

Original languageEnglish
Pages (from-to)126-130
Number of pages5
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume85
Issue number2-3
Early online date12 Jul 2001
DOIs
Publication statusPublished - 22 Aug 2001

Scopus Subject Areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

User-Defined Keywords

  • Absorption and emission properties
  • Blue light-emitting diodes
  • Distyrylstilbene

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