Color tuning of iridium complexes - Part I

Substituted phenylisoquinoline-based iridium complexes as the triplet emitter

Kai Hung Fang, Li Lan Wu, Yu Ting Huang, Cheng Hsien Yang, I-Wen Sun

Research output: Contribution to journalArticle

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Abstract

A series of new iridium complexes with isoquinoline derivative ligands were synthesized for application in organic light-emitting diodes (OLEDs). It is demonstrated that varying the substituents at the 2′- or 4′-positions of the isoquinoline ligand makes the color tuning possible. Because of the steric effect, the 6′-substituted complexes: bis[1-(6′-methyl)phenylisoquinolinato-N,C2′] iridium(III) (acetylacetonate) (6b1), bis[1-(6′-trifluoromethyl)phenylisoquinolinato- N,C2′] iridium(III) (acetylacetonate) (6b2), and bis[1-(6′-methoxy)phenylisoquinolinato-N,C2′] iridium(III) (acetylacetonate) (6b3) show red-shift effect with respect to the 4′-substituted complexes: bis[1-(4′-methyl)phenylisoquinolinato-N, C2′] iridium(III) (acetylacetonate) (6a1), bis[1-(4′- trifluoromethyl)phenylisoquinolinato-N,C2′] iridium(III) (acetylacetonate) (6a2), and bis[1-(4′-methoxy)phenylisoquinolinato-N, C2′] iridium(III) (acetylacetonate) (6a3). All of these complexes are suitable for the red phosphorescent materials in OLEDs.

Original languageEnglish
Pages (from-to)441-450
Number of pages10
JournalInorganica Chimica Acta
Volume359
Issue number2
DOIs
Publication statusPublished - 2006 Jan 20

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Iridium
iridium
emitters
Tuning
tuning
Color
color
Organic light emitting diodes (OLED)
light emitting diodes
Ligands
ligands
red shift
acetyl acetonate
Derivatives

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Fang, Kai Hung ; Wu, Li Lan ; Huang, Yu Ting ; Yang, Cheng Hsien ; Sun, I-Wen. / Color tuning of iridium complexes - Part I : Substituted phenylisoquinoline-based iridium complexes as the triplet emitter. In: Inorganica Chimica Acta. 2006 ; Vol. 359, No. 2. pp. 441-450.
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Color tuning of iridium complexes - Part I : Substituted phenylisoquinoline-based iridium complexes as the triplet emitter. / Fang, Kai Hung; Wu, Li Lan; Huang, Yu Ting; Yang, Cheng Hsien; Sun, I-Wen.

In: Inorganica Chimica Acta, Vol. 359, No. 2, 20.01.2006, p. 441-450.

Research output: Contribution to journalArticle

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AB - A series of new iridium complexes with isoquinoline derivative ligands were synthesized for application in organic light-emitting diodes (OLEDs). It is demonstrated that varying the substituents at the 2′- or 4′-positions of the isoquinoline ligand makes the color tuning possible. Because of the steric effect, the 6′-substituted complexes: bis[1-(6′-methyl)phenylisoquinolinato-N,C2′] iridium(III) (acetylacetonate) (6b1), bis[1-(6′-trifluoromethyl)phenylisoquinolinato- N,C2′] iridium(III) (acetylacetonate) (6b2), and bis[1-(6′-methoxy)phenylisoquinolinato-N,C2′] iridium(III) (acetylacetonate) (6b3) show red-shift effect with respect to the 4′-substituted complexes: bis[1-(4′-methyl)phenylisoquinolinato-N, C2′] iridium(III) (acetylacetonate) (6a1), bis[1-(4′- trifluoromethyl)phenylisoquinolinato-N,C2′] iridium(III) (acetylacetonate) (6a2), and bis[1-(4′-methoxy)phenylisoquinolinato-N, C2′] iridium(III) (acetylacetonate) (6a3). All of these complexes are suitable for the red phosphorescent materials in OLEDs.

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