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 language | English |
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Pages (from-to) | 932-936 |
Number of pages | 5 |
Journal | Japanese Journal of Applied Physics |
Volume | 46 |
Issue number | 3 A |
DOIs | |
Publication status | Published - 2007 Mar 8 |
All Science Journal Classification (ASJC) codes
- General Engineering
- General Physics and Astronomy