Highly efficient solution-processed red organic light-emitting diodes with long-side-chained triplet emitter

Yu Chiang Chao, Sheng Yang Huang, Chun Yu Chen, Yu Fan Chang, Hsin Fei Meng*, Feng Wen Yen, I. Feng Lin, Hsiao Wen Zan, Sheng Fu Horng

*此作品的通信作者

    研究成果: 雜誌貢獻期刊論文同行評審

    28 引文 斯高帕斯(Scopus)

    摘要

    Newly synthesized red Ir complexes tris[2-(4-n-hexyl-phenyl)quinoline] iridium(III) and tris[(4-n-hexylphenyl)isoquinoline)]iridium(III) with long alkyl side chains are utilized to demonstrate the high efficiency multi-layer solution-processed red organic light-emitting diodes. Solubilities of these triplet emitters are high which enable them to be uniformly dispersed in the polymer host. Blade coating method is utilized to prepare organic multi-layers without mutual dissolution between different layers. 17 cd/A current efficiency, 10 lm/W power efficiency, and 8.8% external quantum efficiency can be achieved for the device with CsF/Al cathode. 10,000 cd/m2 is reached at 10 V. Similar quantum efficiency is also achieved with an electron-transport layer and LiF/Al cathode.

    原文英語
    頁(從 - 到)148-152
    頁數5
    期刊Synthetic Metals
    161
    發行號1-2
    DOIs
    出版狀態已發佈 - 2011 一月 1

    ASJC Scopus subject areas

    • 電子、光磁材料
    • 凝聚態物理學
    • 材料力學
    • 機械工業
    • 金屬和合金
    • 材料化學

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