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En Route to High External Quantum Efficiency (∼12%), Organic True-Blue-Light-Emitting Diodes Employing Novel Design of Iridium (III) Phosphors

Yuan-Chieh Chiu, Jui-Yi Hung, Yun Chi*, Chung-Chia Chen, Chih-Hao Chang, Chung-Chih Wu*, Yi-Ming Cheng, Ya-Chien Yu, Gene-Hsiang Lee, Pi-Tai Chou*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

True‐blue Ir(III) phosphors are designed, synthesized, and applied to multilayered organic true‐blue‐light‐emitting diodes with CIEx,y color chromaticity of (0.15,0.11) and maximum external quantum efficiency of ∼12%, demonstrating unprecedented performance among all blue‐phosphorescent OLEDs ever documented. The molecular‐design strategy and subsequent device‐fabrication protocol reveal a major development in OLEDs.  
Original languageEnglish
Pages (from-to)2221-2225
JournalAdvanced Materials
Volume21
Issue number21
Online published18 Dec 2008
DOIs
Publication statusPublished - 5 Jun 2009
Externally publishedYes

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