Influences of dye doping and hole blocking layer insertion on OLED performance

C. H. Tesng, C. H. Liu, C. P. Cheng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study presents the influences of dye doping and hole blocking layer insertion on the electroluminescent properties of the blue organic light emitting diode. The luminance of the device was significantly improved by BCzVB doping because of the utilization of effective Förster energy transfer and the improvement of carrier injection and trapping; a BCzVB dominant emission was observed. Furthermore, when a BCP layer was inserted between the TBADN:BCzVB and Alq3 layers, a thin BCP layer insertion enhanced the injection of electrons and improved the luminance of the device. In contrast, a thick BCP layer insertion caused a delay in electron transport, resulting in a decrease in current density and a deterioration in luminance.

Original languageEnglish
Title of host publicationDiffusion in Solids and Liquids V
PublisherTrans Tech Publications Ltd
Pages555-560
Number of pages6
Volume297-301
ISBN (Print)3908451809, 9783908451808
DOIs
Publication statusPublished - 2010 Jan 1

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Keywords

  • Doping
  • Hole blocking layer (HBl)
  • Organic light emitting diode (OLED)

ASJC Scopus subject areas

  • Radiation
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Tesng, C. H., Liu, C. H., & Cheng, C. P. (2010). Influences of dye doping and hole blocking layer insertion on OLED performance. In Diffusion in Solids and Liquids V (Vol. 297-301, pp. 555-560). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/DDF.297-301.555