期刊
JOURNAL OF LUMINESCENCE
卷 128, 期 9, 页码 1442-1446出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2008.01.014
关键词
ZnO; nanobelts; photoluminescence; Burstein-Moss effect
类别
We investigated structural and optical properties of Sn-doped ZnO nanobelts with different Sri concentrations. X-ray diffraction and Raman spectra showed that the Sn-doped ZnO nanobelts have wurtzite structure at low Sn concentration (< 2.1 at%) and over 2.1 at% a part of them starts to have the inverse spinel Zn2SnO4 structure phase. In addition, for Sn-doped ZnO nanobelts, the photoluminescence spectra indicate that ultraviolet emission peak appears first a blue shift with the increase of Sn concentration due to Burstein-Moss effect and then exhibits a red shift due to band gap renormalization effect. (c) 2008 Published by Elsevier B.V.
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