Improved white organic light-emitting devices with dual-emission-layer design

Wei-Chou Hsu, Ying Nan Lai, Ching Sung Lee, Su Wei Yeh, Wen Feng Lai, Wen Hsuan Lai

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

Abstract

In this work, approaches to improve current efficiency of white organic light-emitting diodes (WOLEDs) with high color purity have been studied. The emission layer in devices consists of 2-(f-butyl)-9,10-bis(2'-naphthyl) anthracene (TBADN) blue host and 5,6, 11, 12-tetraphenylnaphthacene (rubrene) yellow dopant. The efficiency can be enhanced by using architecture of dual emission layers and hole-blocking layer. However, obvious yellow-shift emission occurs due to the small energy barrier between layers. The yellow-shift phenomenon is mitigated by modifying emission layers. The highest current efficiency of WOLED is 6.43 cd/A, which is greater by 51% than the device with single emission layer. The Commission Internationale de PEclairage (CIE) coordinates of (0.33, 0.33) exhibits high color purity in WOLEDs.

Original languageEnglish
Title of host publicationICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings
Pages1017-1020
Number of pages4
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008 - Beijing, China
Duration: 2008 Oct 202008 Oct 23

Publication series

NameInternational Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT

Other

Other2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008
CountryChina
CityBeijing
Period08-10-2008-10-23

Fingerprint

Organic light emitting diodes (OLED)
Color
light emitting diodes
Anthracene
Energy barriers
purity
Doping (additives)
color
shift
anthracene
high current
rubrene

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Hsu, W-C., Lai, Y. N., Lee, C. S., Yeh, S. W., Lai, W. F., & Lai, W. H. (2008). Improved white organic light-emitting devices with dual-emission-layer design. In ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings (pp. 1017-1020). [4734725] (International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT). https://doi.org/10.1109/ICSICT.2008.4734725
Hsu, Wei-Chou ; Lai, Ying Nan ; Lee, Ching Sung ; Yeh, Su Wei ; Lai, Wen Feng ; Lai, Wen Hsuan. / Improved white organic light-emitting devices with dual-emission-layer design. ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings. 2008. pp. 1017-1020 (International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT).
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abstract = "In this work, approaches to improve current efficiency of white organic light-emitting diodes (WOLEDs) with high color purity have been studied. The emission layer in devices consists of 2-(f-butyl)-9,10-bis(2'-naphthyl) anthracene (TBADN) blue host and 5,6, 11, 12-tetraphenylnaphthacene (rubrene) yellow dopant. The efficiency can be enhanced by using architecture of dual emission layers and hole-blocking layer. However, obvious yellow-shift emission occurs due to the small energy barrier between layers. The yellow-shift phenomenon is mitigated by modifying emission layers. The highest current efficiency of WOLED is 6.43 cd/A, which is greater by 51{\%} than the device with single emission layer. The Commission Internationale de PEclairage (CIE) coordinates of (0.33, 0.33) exhibits high color purity in WOLEDs.",
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Hsu, W-C, Lai, YN, Lee, CS, Yeh, SW, Lai, WF & Lai, WH 2008, Improved white organic light-emitting devices with dual-emission-layer design. in ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings., 4734725, International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT, pp. 1017-1020, 2008 9th International Conference on Solid-State and Integrated-Circuit Technology, ICSICT 2008, Beijing, China, 08-10-20. https://doi.org/10.1109/ICSICT.2008.4734725

Improved white organic light-emitting devices with dual-emission-layer design. / Hsu, Wei-Chou; Lai, Ying Nan; Lee, Ching Sung; Yeh, Su Wei; Lai, Wen Feng; Lai, Wen Hsuan.

ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings. 2008. p. 1017-1020 4734725 (International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT).

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

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Hsu W-C, Lai YN, Lee CS, Yeh SW, Lai WF, Lai WH. Improved white organic light-emitting devices with dual-emission-layer design. In ICSICT 2008 - 2008 9th International Conference on Solid-State and Integrated-Circuit Technology Proceedings. 2008. p. 1017-1020. 4734725. (International Conference on Solid-State and Integrated Circuits Technology Proceedings, ICSICT). https://doi.org/10.1109/ICSICT.2008.4734725