Enhanced power efficiency of single-layer white triplet polymer light-emitting diodes by blending with polymer oxides

Yung Shiuan Chen, Shang Chieh Chien, Fang-Chung Chen*, Jan Tian Lian, Chien Lung Tsou, Chi Neng Mo

*此作品的通信作者

    研究成果: Conference article同行評審

    摘要

    In this study, we have demonstrated enhanced performance of blue, red and white phosphorescent polymer light-emitting diodes (PLEDs) by blending poly(ethylene glycol) (PEG) into the active layer of the devices. By introducing PEG into the PLEDs, the turn-on voltages of these devices became lower than those of the conventional devices. In addition, the luminance efficiency and the external quantum efficiency of the blue and white phosphorescent PLEDs were both improved. Most important of all, because of the lower operating voltage, the higher power efficiency (7.3 lm/W, 1.5 lm/W, 4.61m/W) of the blue, red and white phosphorescent PLEDs than those of the control devices (2.9 lm/W, 1.9 lm/W, 1.9 lm/W) have been achieved, respectively. Finally, the improvement mechanism will be discussed.

    原文English
    頁(從 - 到)2043-2045
    頁數3
    期刊Digest of Technical Papers - SID International Symposium
    39
    發行號3
    DOIs
    出版狀態Published - 30 十月 2008
    事件2008 SID International Symposium - Los Angeles, CA, United States
    持續時間: 20 五月 200821 五月 2008

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