Synthesis and field-emission properties of novel hierarchical ZnO hexagonal towers
Synthesis and field-emission properties of novel hierarchical ZnO hexagonal towers
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新型分级ZnO六方塔的合成及场发射性能
DOI：
10.1016/j.jallcom.2012.04.003
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发表时间：
2012-08
影响因子：
6.2
通讯作者：
Guoqing.Miao
中科院分区：
文献类型：
--
作者：
Lili.Wu;Hong.Gao;E.Zhang;Guoqing.Miao
通过在前驱体中添加微量Fe粉作为催化剂，首次采用化学气相沉积法制备了新型的分级ZnO六角塔。扫描电子显微镜图像表明，新型分级ZnO六角塔的外表面是逐层组装的。X射线衍射分析表明，ZnO六方塔结构优先沿[0001]方向沿着生长。在室温下观察到以380nm为中心的强紫外发射。并对其场发射特性进行了研究。由于新颖的层结构和高的晶体质量，获得了2.37Vμm− 1的低开启电场和约2691的高场增强因子。这种分级结构的ZnO微结构可以作为高性能场发射器件的候选材料。
Novel hierarchical ZnO hexagonal towers were fabricated via chemical vapor deposition for the first time by adding trace Fe power in the precursor as a catalyst. The scanning electron microscopy images showed that the outside surface of novel hierarchical ZnO hexagonal towers was layer-by-layer assembly. X-ray diffraction pattern indicated that the hierarchical ZnO hexagonal towers grew preferentially along the [0001] direction. Intense UV emission centered at 380nm was observed at room temperature. Moreover, their field-emission properties were studied. A low turn-on electric field of 2.37Vμm−1and high field enhancement factor of about 2691 were obtained, due to the novel layer structure and high crystalline quality. This kind of hierarchical ZnO microstructures could be a good candidate for high performance field emission devices.
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影响因子：
17.1
作者：
T. Zhai;X. Fang;Y. Bando;Qing Liao;Xijin Xu;H. Zeng;Ying Ma;J. Yao;D. Golberg
通讯作者：
T. Zhai;X. Fang;Y. Bando;Qing Liao;Xijin Xu;H. Zeng;Ying Ma;J. Yao;D. Golberg
影响因子：
29.4
作者：
Zhou, J;Xu, NS;Wang, ZL
通讯作者：
Wang, ZL
垂直排列单晶硼纳米线阵列的制备及其场致发射行为的研究
影响因子：
29.4
作者：
Liu, Fei;Tian, Jifa;Gao, Hongjun
通讯作者：
Gao, Hongjun
DOI：
10.1021/jp064316q
发表时间：
2006-11
期刊：
The journal of physical chemistry. B
影响因子：
--
作者：
Yao Liang;Xitian Zhang;L. Qin;E. Zhang;Hong Gao;Zhiguo Zhang
通讯作者：
Yao Liang;Xitian Zhang;L. Qin;E. Zhang;Hong Gao;Zhiguo Zhang
影响因子：
15
作者：
Liang Shi;Congjian Pei;Yeming Xu;Quan Li
通讯作者：
Liang Shi;Congjian Pei;Yeming Xu;Quan Li