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ZnO nanorods are fabricated by hydrothermal method on glass substrates that are covered with a ZnO seed layer by the thermal decomposition of zinc acetate. The influences of the thermal decomposition temperature on the structural and the optical properties of the obtained ZnO nanorods are carefully studied by using X-ray diffractometry, scanning electron microscopy and spectrophotometry. It is found that the crystalline quality, head-face dimension, macro stress, and transmissivity are found to be dependent on the thermal decomposition temperature. The 〈002〉c-axis-preferred orientation of the obtained ZnO nanorod is first enhanced and then weakened; the macro tensile stress first decreases and then increases; the average transmissivity first increases and then decreases as thermal decomposition temperature increases. When the thermal decomposition temperature reaches 350 ℃, the c-axis preferred orientation is strongest; the tensile stress is smallest; the average transmissivity in the visible region is maximal for the obtained ZnO nanorod. The surface scattering induced by the head-face dimension is the key mechanism of the average transmissivity of the obtained ZnO nanorod in the visible region.
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Keywords:
- zinc acetate /
- hydrothermal method /
- ZnO nanorods
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[14] Cebulla R, Wendi R, Ellmer K 1998 J. Appl. Phys. 83 1087
[15] Oh B Y, Jeong M C, Kim D S, Lee W, Myoung J M 2005 J. Cryst. Growth 281 475
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[1] Wang Y, Xu X L, Xie W Y, Wang Z B, Lü L, Zhao Y L 2008 Acta Phys. Sin. 57 2582 (in Chinese) [王烨, 许小亮, 谢炜宇, 汪壮兵, 吕柳, 赵亚丽 2008 物理学报 57 2582]
[2] Huang J Z, Li S S, Feng X P 2010 Acta Phys. Sin. 59 5839 (in Chinese) [黄金昭, 李世帅, 冯秀鹏 2010 物理学报 59 5839]
[3] Wang J W, Bian J M, Sun J C, Liang H W, Zhao J Z, Du G T 2008 Acta Phys. Sin. 57 5212 (in Chinese) [王经纬, 边继明, 孙景昌, 梁红伟, 赵涧泽, 杜国同 2008 物理学报 57 5212]
[4] Zhou S Q, Yang L M, Liu W W, Zhao K, Zhou Y L, Zhou Q L 2010 Chin. Phys. B 19 087204
[5] Li H Q, Ning Z Y, Cheng S H, Jiang M F 2004 Acta Phys. Sin. 53 867 (in Chinese) [李火全, 宁兆元, 程珊华, 江美福 2004 物理学报 53 867]
[6] Chen C, Ji Y, Gao X Y, Zhao M K, Ma J M, Zhang Z Y, Lu J X 2012 Acta Phys. Sin. 61 036104 (in Chinese) [陈超, 冀勇, 郜小勇, 赵孟珂, 马姣民, 张增院, 卢景霄2012 物理学报 61 036104]
[7] Hong R J, Jiang X, Heide G, Szyszka B, Sittinger V, Werner A 2003 J. Cryst. Growth 249 461
[8] Han P Z, Zhao J L, Xu Z, Kong C, Wang D W, Yan Y 2010 Acta Phys. Sin. 59 616 (in Chinese) [阚鹏志, 赵谡玲, 徐征, 孔超, 王大伟, 闫悦 2010 物理学报 59 616]
[9] Liu C H, Liu B C, Fu Z X 2008 Chin. Phys. B 17 2292
[10] Ueno N, Maruo T, Nishiyama N, Egashira Y, Ueyama K 2010 Mater. Lett. 64 513
[11] Chen X M, Ji Y, Gao X Y, Zhao X W 2012 Chin. Phys. B 21
[12] Zhao X Y, Zheng B C, Li C Z, Hu L M, Gu H C 1996 J. Inorg. Mater. 11 611 (in Chinese) [赵新宇, 郑柏存, 李春忠, 胡黎明, 古宏晨 1996无机材料学报 11 611]
[13] Segmuller A, Murakami M, Rosenberg R 1988 Analytical Techniques for Thin Films (Boston: Academic Press) p143
[14] Cebulla R, Wendi R, Ellmer K 1998 J. Appl. Phys. 83 1087
[15] Oh B Y, Jeong M C, Kim D S, Lee W, Myoung J M 2005 J. Cryst. Growth 281 475
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