期刊
POWDER TECHNOLOGY
卷 148, 期 1, 页码 15-19出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.powtec.2004.09.014
关键词
nanocrystalline semiconductors; mechanical milling; free volume; solar cells
Structural and optical characterization of mechanically milled ZnO powders are presented in this paper. It is shown that the application of mechanical milling is a very effective and simple technique to produce nanocrystalline powders. with the possibility of obtaining large quantities of materials. The milled powders are analyzed by X-ray diffraction, positron annihilation spectroscopy, scanning electron microscopy (SEM) and photoluminescence spectroscopy (PL). As milling proceeds, a clear reduction of grain size and homogenization are observed. (C) 2004 Elsevier B.V. All rights reserved.
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