Immiscible polymers in double spin-coated electroluminescent devices containing phenyl-substituted tris(8-hydroxyquinoline)aluminum derivatives soluble in a host polymer

E. Shoji, K. Miyatake, A. R. Hlil, A. S. Hay, T. Maindron, V. Jousseaume, J. P. Dodelet, Y. Tao, M. D'iorio

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Three new phenyl-substituted tris(8-hydroxyquinoline)aluminum (AlQ3) derivatives have been synthesized: tris(5-phenyl-8-quinolinolate-N1,O8)aluminum, tris(5,7-diphenyl-8-quinolinolate-N1,O8)aluminum, and tris[5,7-bis(p-fluorophenyl)-8-quinolinolate-N1,O8]aluminum. These AlQ3 derivatives are easily soluble in common organic solvents and form solid-phase solutions in a poly(aryl ether ketone) host polymer (A435). These interesting properties allow the use of soluble AlQ3 derivatives in double spin-coated organic light-emitting devices of the type ITO/NPB-QP/A435 + 50 wt% soluble AlQ3 derivative/Mg, where NPB-QP is a hole-transporting polymer insoluble in toluene, the solvent for A435. Typical double spin-coated organic layer devices are characterized by an emission at 530-539 nm, a threshold voltage of 6-9 V, and a maximum luminance of 1800-4000 cd/m2 at 21-25 V.

Original languageEnglish
Pages (from-to)3006-3016
Number of pages11
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume41
Issue number19
DOIs
Publication statusPublished - 2003 Oct 1

Keywords

  • AlQ
  • Blends
  • Electroluminescence
  • Host polymer
  • Immiscibility
  • Light-emitting diodes (LEDs)
  • Phenyl-substituted

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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