Improved performance of top-emissive polymer light-emitting device with semitransparent Ag cathode with the aid of Au nanoparticles

Sung Nien Hsieh, Ten Chin Wen, Tzung Fang Guo

Research output: Contribution to journalArticlepeer-review

Abstract

An efficient top-emissive polymer light-emitting diode (T-PLED) employing Ag as a semi transparent 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.

Original languageEnglish
Pages (from-to)932-936
Number of pages5
JournalJapanese Journal of Applied Physics
Volume46
Issue number3 A
DOIs
Publication statusPublished - 2007 Mar 8

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy

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