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Proceedings Paper

High performance inverted top-emitting organic light-emitting diodes with enhanced intrinsic quantum yield
Author(s): Yukun Wu; Runda Guo; Hongbo Wang; Zhensong Zhang; Yi Zhao
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Paper Abstract

Inverted top-emitting organic light-emitting diodes (ITOLEDs) with aluminum as cathode and semitransparent silver as anode are investigated. Comparing the blue, green and red ITOLEDs with conventional BEOLEDs based on iridium complex, it is surprising that the red ITOLED exhibits a higher efficiency nearly twice as that of the bottom-emitting counterpart, while blue and green ITOLEDs are comparable to BEOLEDs. We explain that the role of the strong microcavity effect improved the spontaneous emission of emitters in all ITOLEDs, however, only the intrinsic quantum yield of the red emitters is improved due to its comparable radiative and nonradiative decay rates.

Paper Details

Date Published: 22 September 2015
PDF: 6 pages
Proc. SPIE 9566, Organic Light Emitting Materials and Devices XIX, 95661S (22 September 2015); doi: 10.1117/12.2187245
Show Author Affiliations
Yukun Wu, Jilin Univ. (China)
Runda Guo, Jilin Univ. (China)
Hongbo Wang, Jilin Univ. (China)
Zhensong Zhang, Jilin Univ. (China)
Yi Zhao, Jilin Univ. (China)

Published in SPIE Proceedings Vol. 9566:
Organic Light Emitting Materials and Devices XIX
Franky So; Chihaya Adachi; Jang-Joo Kim, Editor(s)

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