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Energy Express

  • Editor: Bernard Kippelen
  • Vol. 20, Iss. S2 — Mar. 12, 2012
  • pp: A213–A218

High power efficiency phosphorescent poly(dendrimer) OLEDs

J. W. Levell, S. Zhang, W.-Y. Lai, S.-C. Lo, P. L. Burn, and I. D. W. Samuel  »View Author Affiliations

Optics Express, Vol. 20, Issue S2, pp. A213-A218 (2012)

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We show that it is possible to produce an efficient solution-processable phosphorescent poly(dendrimer) OLED with a 32 lm/W power efficiency at 100 cd/m2 without using a charge transporting host or any improvements in light extraction. This is achieved by using the dendrimer architecture to control inter-chromophore interactions. The effects of using 4,4′,4″-tris(N-carbazolyl)triphenylamine (TCTA) as a charge transporting host and using a double dendron structure to further reduce inter-chromophore interactions are also reported.

© 2012 OSA

OCIS Codes
(250.3680) Optoelectronics : Light-emitting polymers
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Light-Emitting Diodes

Original Manuscript: October 5, 2011
Revised Manuscript: December 13, 2011
Manuscript Accepted: December 13, 2011
Published: January 23, 2012

Virtual Issues
Organic Light-Emitting Diodes (2011) Optics Express

J. W. Levell, S. Zhang, W.-Y. Lai, S.-C. Lo, P. L. Burn, and I. D. W. Samuel, "High power efficiency phosphorescent poly(dendrimer) OLEDs," Opt. Express 20, A213-A218 (2012)

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