By a News Reporter-Staff News Editor at Journal of Technology -- A new study on Thin Solid Films is now available. According to news originating from Nagaoka, Japan, by VerticalNews correspondents, research stated, "The electrical properties of zinc oxide (ZnO) epitaxial films grown by chemical vapor deposition (CVD) using high-energy H2O generated by H-2-O-2 reactions on Pt nanoparticles were evaluated. High-energy ZnO precursors formed by the reaction between dimethylzinc gas molecules and H2O molecules were supplied to the substrate surface."
Our news journalists obtained a quote from the research from the Nagaoka University of Technology, "The ZnO epitaxial films were grown directly on a-plane sapphire (a-Al2O3) substrates at 773 K without any buffer layer. The electron mobility (mu(H)) at room temperature increased from 30 to 190 cm(2)V(-1) s(-1) with increasing film thickness from 100 nm to 2800 nm. The mu(H) increased significantly with decreasing temperature to approximately 100-150 K, but it decreased at temperatures less than 100 K for films thicker than 500 nm. The mu(H) of the ZnO film (189 cm(2)V(-1) s(-1)) at 290 K increased to 660 cm(2)V(-1) s(-1) at 100 K. In contrast, mu(H) hardly changed with temperature for films thinner than 500 nm."
According to the news editors, the research concluded: "According to a two-layer Hall-effect model, the mu(H) and electron concentration of the upper layer were corrected based on the above results, assuming that the degenerate layer had a thickness of 100 nm."
For more information on this research see: Electrical properties of ZnO thin films grown on a-plane sapphire substrates using catalytically generated high-energy H2O. Thin Solid Films, 2013;549():18-21. Thin Solid Films can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Thin Solid Films - www.elsevier.com/wps/product/cws_home/504106)
The news correspondents report that additional information may be obtained from N. Yamaguchi, Nagaoka Univ Technol, Dept. of Elect Elect & Informat Eng, Nagaoka, Niigata 9402188, Japan. Additional authors for this research include T. Takeuchi, E. Nagatomi, T. Kato, H. Umemoto and K. Yasui.
Keywords for this news article include: Asia, Japan, Nagaoka, Thin Solid Films
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