Improved Performance of Top-Emissive Polymer Light-Emitting Device with Semitransparent Ag Cathode with the Aid of Au Nanoparticles

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概要

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• An efficient top-emissive polymer light-emitting diode (T-PLED) employing Ag as a semitransparent cathode is achieved by adding Au nanoparticles to a phenyl-substituted poly(para-phenylene vinylene) copolymer (HY-PPV). The efficiency of the T-PLED with Au nanoparticles is 3.4 cd/A, which is much higher than that of the T-PLED without such particles (0.15 cd/A). The superior performance of the device is attributed to the balance between the electron and hole currents induced by the Au nanoparticles, which increases the probability of hole–electron recombination. Furthermore, the device’s stability in air can be significantly improved because of the use of stable electrodes.

• 2007-03-15

著者

• Guo Tzung-fang

  Institute Of Electro-optical Science And Engineering Advanced Optoelectronic Technology Center Natio

• Wen Ten-chin

  Department Of Chemical Engineering National Cheng Kung University

• Hsieh Sung-Nien

  Department of Chemical Engineering, Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan 701, Republic of China

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