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Characterization of Aluminum-Doped Zinc Oxide Nanoparticle Suspensions in Ethylene Glycol for Transparent Conducting Coatings

Authors

  • Junhua Zhao,

    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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  • Ruiqin Tan,

    1. Faculty of Information Science and Engineering, Ningbo University, Ningbo 315211, China
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  • Yulong Zhang,

    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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  • Ye Yang,

    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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  • Yanqun Guo,

    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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  • Xianpeng Zhang,

    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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  • Weiyan Wang,

    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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  • Weijie Song

    Corresponding author
    1. Division of Functional Materials and Nanodevices, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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  • R. Moreno—contributing editor

  • This work was supported by the “Hundred Talents Program” and the “Solar Action Program,” the Chinese Academy of Sciences, the Zhejiang Natural Science Foundation (Y407364), Qianjiang Talent Program (Grant No. 2009R10064), and the Ningbo Natural Science Foundation (No. 2008A610047).

†Author to whom correspondence should be addressed. e-mail: weijiesong@nimte.ac.cn

Abstract

Aluminum-doped zinc oxide nanoparticles were stably suspended in ethylene glycol (EG) without adding any stabilizing reagents. The Fourier transform infrared results showed that EG was chemically absorbed on the particle surface. The mechanism of particle stability of the suspension was proposed and analyzed. The operational pH (O.pH) and the zeta potential were observed to be dependent on the particle concentration. The O.pH increased linearly with the zeta potential as in aqueous suspensions and this relationship was independent of water concentration in EG. These empirical relationships are important in simplifying engineering approaches.

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