ZnO Nanowall Structures Synthesized by Radio Frequency Magnetron Sputtering Method
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概要
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Catalyst-free ZnO nanowall network was synthesized at 250 °C by radio frequency (RF) magnetron sputtering. The nanowall network of wurtzite structure was grown on Si substrates in an epitaxial-like manner, determined by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The field emission scanning electron microscopy (FESEM) images revealed that the width of the nanowalls vary in the range of 20–45 nm depending on deposition conditions. The Brunauer–Emmett–Teller (BET) surface area of the nanowall network was increased ten-fold compared to that of the thin film of an identical thickness. Furthermore, the photoluminescence (PL) spectra proved that the synthesized nanowalls were of high optical quality.
- 2009-08-25
著者
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Kim Do
School Of Advanced Materials Engineering Chonbuk National University
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Kim In
School of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea
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Choi Se-Young
School of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea
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Kim Do
School of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea
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