Highly efficient white organic electroluminescent devices based on tandem architecture

Chan Ching Chang; Jenn-Fang Chen; Shiao Wen Hwang; Chin H. Chen

doi:10.1063/1.2147730

Highly efficient white organic electroluminescent devices based on tandem architecture

Chan Ching Chang^*, Jenn-Fang Chen, Shiao Wen Hwang, Chin H. Chen

^*Corresponding author for this work

Department of Electrophysics

Research output: Contribution to journal › Article › peer-review

187 Scopus citations

Abstract

Two types of tandem organic light-emitting diodes (OLEDs) with white-light emission have been developed by using Mg:Al q3 W O3 as the interconnecting layer. While the Commission Internationale d'Eclairage (CIE) coordinates of the tandem device with individual blue- and yellow-emitting OLEDs was sensitive to the viewing angle and the operating time, the tandem device connecting two white-emitting OLEDs was considerably less. At an optimal W O3 thickness of 5 nm, the tandem two-unit device produced three higher luminance efficiency than that expected of a single-unit device. A maximum efficiency of 22 cdA was achieved by the tandem device comprised of two white-fluorescent OLEDs, and the projected half-life under the initial luminance of 100 cd m2 was over 80 000 h.

Original language	English
Article number	253501
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	25
DOIs	https://doi.org/10.1063/1.2147730
State	Published - 2005

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title = "Highly efficient white organic electroluminescent devices based on tandem architecture",

abstract = "Two types of tandem organic light-emitting diodes (OLEDs) with white-light emission have been developed by using Mg:Al q3 W O3 as the interconnecting layer. While the Commission Internationale d'Eclairage (CIE) coordinates of the tandem device with individual blue- and yellow-emitting OLEDs was sensitive to the viewing angle and the operating time, the tandem device connecting two white-emitting OLEDs was considerably less. At an optimal W O3 thickness of 5 nm, the tandem two-unit device produced three higher luminance efficiency than that expected of a single-unit device. A maximum efficiency of 22 cdA was achieved by the tandem device comprised of two white-fluorescent OLEDs, and the projected half-life under the initial luminance of 100 cd m2 was over 80 000 h.",

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AU - Chang, Chan Ching

AU - Chen, Jenn-Fang

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N2 - Two types of tandem organic light-emitting diodes (OLEDs) with white-light emission have been developed by using Mg:Al q3 W O3 as the interconnecting layer. While the Commission Internationale d'Eclairage (CIE) coordinates of the tandem device with individual blue- and yellow-emitting OLEDs was sensitive to the viewing angle and the operating time, the tandem device connecting two white-emitting OLEDs was considerably less. At an optimal W O3 thickness of 5 nm, the tandem two-unit device produced three higher luminance efficiency than that expected of a single-unit device. A maximum efficiency of 22 cdA was achieved by the tandem device comprised of two white-fluorescent OLEDs, and the projected half-life under the initial luminance of 100 cd m2 was over 80 000 h.

AB - Two types of tandem organic light-emitting diodes (OLEDs) with white-light emission have been developed by using Mg:Al q3 W O3 as the interconnecting layer. While the Commission Internationale d'Eclairage (CIE) coordinates of the tandem device with individual blue- and yellow-emitting OLEDs was sensitive to the viewing angle and the operating time, the tandem device connecting two white-emitting OLEDs was considerably less. At an optimal W O3 thickness of 5 nm, the tandem two-unit device produced three higher luminance efficiency than that expected of a single-unit device. A maximum efficiency of 22 cdA was achieved by the tandem device comprised of two white-fluorescent OLEDs, and the projected half-life under the initial luminance of 100 cd m2 was over 80 000 h.

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Highly efficient white organic electroluminescent devices based on tandem architecture

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