Issue 42, 2013
From the journal:

Journal of Materials Chemistry C

Gold nanoparticles modified ITO anode for enhanced PLEDs brightness and efficiency

Xiaoyan Wu,ab   Linlin Liu,*a   Tiancheng Yu,a   Lei Yu,a   Zengqi Xie,a   Yueqi Mo,a   Shuping Xub  and  Yuguang Ma*a  

* Corresponding authors

a Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China
E-mail: ygma@scut.edu.cn, msliull@scut.edu.cn
Fax: +86-20-87110606
Tel: +86-20-22236311

b State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, P. R. China

Abstract

We reported a facile and controllable electrostatic adsorption of gold nanoparticles (Au NPs) on an indium tin oxide (ITO) anode, for applications in polymer light-emitting diodes (PLEDs). Au NPs (size 20 nm) were found to be well dispersed on a pre-treated ITO anode, and the density of Au NPs was well controlled from 0 to 60 μm−2 depending on the adsorption time. By using the Au NPs modified ITO as the anode, the optimized PLEDs showed a 60% enhancement in brightness and 40% enhancement in luminous efficiency. Our results showed that the enhancement of devices performance mainly originated from enhanced photoluminescence, the maximum of luminous efficiency appeared when the distance of Au NPs and light emission profile was about 40–80 nm, which indicated that the origin of enhanced luminescence is due to the “far-field” effect of the Au NPs layer rather than a classical localized surface plasma resonance.

Graphical abstract: Gold nanoparticles modified ITO anode for enhanced PLEDs brightness and efficiency

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Article information

DOI
https://doi.org/10.1039/C3TC31237B
Article type
Paper
Submitted
27 Jun 2013
Accepted
07 Sep 2013
First published
09 Sep 2013

J. Mater. Chem. C, 2013,1, 7020-7025

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Gold nanoparticles modified ITO anode for enhanced PLEDs brightness and efficiency

X. Wu, L. Liu, T. Yu, L. Yu, Z. Xie, Y. Mo, S. Xu and Y. Ma, J. Mater. Chem. C, 2013, 1, 7020 DOI: 10.1039/C3TC31237B

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