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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 期刊論文 >  High-efficiency blue multilayer polymer light-emitting diode fabricated by a general liquid buffer method

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/71581

    Title: High-efficiency blue multilayer polymer light-emitting diode fabricated by a general liquid buffer method
    Authors: Shin-Rong Tseng;Hsin-Fei Meng;Chi-Hung Yeh;Huan-Chung Lai;Sheng-Fu Horng;Hua-Hsien Liao;Chain-Shu Hsu;Li-Chi Lin
    教師: 洪勝富
    Date: 2008
    Publisher: Elsevier
    Relation: Synthetic Metals, Elsevier, Volume 158, Issues 3-4, February 2008, Pages 130-134
    Keywords: Polymer light-emitting diodes
    High efficiency
    Abstract: A bright, highly efficient blue polymer light-emitting diode is fabricated by spin-coating with multilayer structure. By introducing a liquid buffer layer, the dissolution problem is overcome successfully. This general method can be applied to fabricate arbitrary polymer multilayer structure, in particular the addition of the carrier blocking layers to balance the electron and hole currents and improve the device efficiency. By adding an electron-blocking layer, the external quantum efficiency for blue emission can be increased to 5.5% (9.1 cd/A) which is even higher than the theoretical limit of 5%. The luminance reaches 26,530 cd/m2and the Commission Internationale de L’Eclairage (CIE) coordinates is (0.15, 0.23). Further more the lifetime is increased by three times relative to the single layer device.
    Relation Link: http://www.elsevier.com/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/71581
    Appears in Collections:[電機工程學系] 期刊論文

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