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Appl. Sci. 2016, 6(12), 441; doi:10.3390/app6120441

Enhancement and Reduction of Nonradiative Decay Process in Organic Light-Emitting Diodes by Gold Nanoparticles

1
Department of Electrical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
2
Department of Electronic Engineering, Fortune Institute of Technology, Kaohsiung 83160, Taiwan
3
Department of Electrical Engineering, Kao-Yuan University, Kaohsiung 82151, Taiwan
4
Department of Applied Physics, National University of Kaohsiung, Kaohsiung 81148, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Teen-Hang Meen
Received: 19 September 2016 / Revised: 30 November 2016 / Accepted: 8 December 2016 / Published: 16 December 2016
View Full-Text   |   Download PDF [2003 KB, uploaded 16 December 2016]   |  

Abstract

The influences of gold nanoparticles (GNPs) and the buffer layer on the performance of organic light-emitting diodes are investigated in this study. The GNPs are doped into poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) and the buffer layer is introduced between the hole-transport layer and emitting layer. The GNPs are found to have the surface plasmon resonance at a wavelength of 530 nm when the mean particle size of the GNPs is 10 nm. The current efficiency of the device, at a current density of 145 mA/cm2, with GNPs and a buffer layer of 6 nm is about 1.93 times higher than that of the device with prime PEDOT:PSS because the GNPs will generate the surface plasmon resonance effect in the device and the buffer layer can considerably decrease the quenching of the fluorescence. View Full-Text
Keywords: gold nanoparticles; quenching of fluorescence; surface plasmon resonance effect; current efficiency gold nanoparticles; quenching of fluorescence; surface plasmon resonance effect; current efficiency
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Gao, C.-Y.; Chen, K.-L.; Sze, P.-W.; Chen, Y.-C.; Huang, C.-J. Enhancement and Reduction of Nonradiative Decay Process in Organic Light-Emitting Diodes by Gold Nanoparticles. Appl. Sci. 2016, 6, 441.

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