Optimization of orange-emitting electrophosphorescent copolymers for organic light-emitting diodes

Andreas Haldi, Alpay Kimyonok, Benoit Domercq, Lauren E. Hayden, Simon C. Jones, Seth R. Marder, Marcus Weck, Bernard Kippelen

Research output: Contribution to journalArticle

Abstract

Orange-emitting phosphorescent copolymers containing iridium complexes and bis(carbazolyl)fluorene groups in their side chains are employed as the emissive layer in multilayer organic light-emitting diodes (OLEDs). The efficiency of the OLED devices is optimized by varying characteristics of the copolymers: the molecular weight, the iridium loading level, and the nature and length of the linker between the side chains and the polymer backbone. A maximum efficiency of 4.9 ± 0.4%, 8.8 ± 0.7 cd A -1 at 100 cd m -2 is achieved with an optimized copolymer.

Original languageEnglish (US)
Pages (from-to)3056-3062
Number of pages7
JournalAdvanced Functional Materials
Volume18
Issue number19
DOIs
StatePublished - Oct 9 2008

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Organic light emitting diodes (OLED)
Iridium
copolymers
light emitting diodes
Copolymers
iridium
optimization
molecular weight
Polymers
Multilayers
Molecular weight
polymers

ASJC Scopus subject areas

  • Biomaterials
  • Electrochemistry
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Haldi, A., Kimyonok, A., Domercq, B., Hayden, L. E., Jones, S. C., Marder, S. R., ... Kippelen, B. (2008). Optimization of orange-emitting electrophosphorescent copolymers for organic light-emitting diodes. Advanced Functional Materials, 18(19), 3056-3062. https://doi.org/10.1002/adfm.200800446

Optimization of orange-emitting electrophosphorescent copolymers for organic light-emitting diodes. / Haldi, Andreas; Kimyonok, Alpay; Domercq, Benoit; Hayden, Lauren E.; Jones, Simon C.; Marder, Seth R.; Weck, Marcus; Kippelen, Bernard.

In: Advanced Functional Materials, Vol. 18, No. 19, 09.10.2008, p. 3056-3062.

Research output: Contribution to journalArticle

Haldi, A, Kimyonok, A, Domercq, B, Hayden, LE, Jones, SC, Marder, SR, Weck, M & Kippelen, B 2008, 'Optimization of orange-emitting electrophosphorescent copolymers for organic light-emitting diodes', Advanced Functional Materials, vol. 18, no. 19, pp. 3056-3062. https://doi.org/10.1002/adfm.200800446
Haldi, Andreas ; Kimyonok, Alpay ; Domercq, Benoit ; Hayden, Lauren E. ; Jones, Simon C. ; Marder, Seth R. ; Weck, Marcus ; Kippelen, Bernard. / Optimization of orange-emitting electrophosphorescent copolymers for organic light-emitting diodes. In: Advanced Functional Materials. 2008 ; Vol. 18, No. 19. pp. 3056-3062.
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