采用化学气相沉积(CVD)法成功制备出ZnO纳米带梳,实验过程不需要催化剂.X射线衍射仪(XRD)分析结果表明,ZnO纳米带梳为高度结晶的六方纤锌矿结构;利用扫描电子显微镜(SEM)观测,所制样品是由纳米带组成梳状形貌,纳米带梳的形成经过两个步骤:先通过VS机制形成微米带,而梳的齿通过自催化生长平行于(0001)极性面形成.对样品的光致荧光(PL)谱测量发现了位于～395nm和495nm处的室温光致发光峰.
参考文献
| [1] | Geng B Y;Xie T et al.Large-scale synthesis of ZnO nanowires using a low-temperature chemical route and their photoluminescence properties[J].Applied Physics A:Materials Science & Processing,2003,A77:363. |
| [2] | Woong Lee;Min-Chang Jeong;Jae-Min Myoung .Catalyst-free growth of ZnO nanowires by metal-organic chemical vapour deposition (MOCVD) and thermal evaporation[J].Acta materialia,2004(13):3949-3957. |
| [3] | Zheng MJ.;Zhang LD.;Li GH.;Shen WZ. .Fabrication and optical properties of large-scale uniform zinc oxide nanowire arrays by one-step electrochemical deposition technique[J].Chemical Physics Letters,2002(1/2):123-128. |
| [4] | Chiou Wenting;Wu Wangyu;Ting Jyhming .Growth of single crystal ZnO nanowires using sputter deposition[J].Diamondand Related Mater,2003,12:1841. |
| [5] | Chen YF.;Yao TF.;Bagnall D. .ZnO as a novel photonic material for the UV region[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2000(2/3):190-198. |
| [6] | Wang ZL.;Kong XY.;Zuo JM. .Induced growth of asymmetric nanocantilever arrays on polar surfaces - art. no. 185502[J].Physical review letters,2003(18):5502-0. |
| [7] | Chen Y Q;Jiang J;He Z Y et al.Growth mechanism and characterization of ZnO microbelts and self-assembled microcombs[J].Materials Letters,2005,59:3280. |
| [8] | Jae Young Park;In Ok Jung;Jong Ha Moon;Byung-Teak Lee;Sang Sub Kim .Temperature induced shape change of highly aligned ZnO nanocolumns[J].Journal of Crystal Growth,2005(3/4):353-358. |
| [9] | Vanheusden K.;Seager CH.;Tallant DR.;Voigt JA.;Gnade BE.;Warren WL. .MECHANISMS BEHIND GREEN PHOTOLUMINESCENCE IN ZNO PHOSPHOR POWDERS[J].Journal of Applied Physics,1996(10):7983-7990. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%