SYNTHESIS AND LUMINESCENCE PROPERTIES OF ZnO NANONEEDLE ARRAYS VIA ELECTRODEPOSITED METHOD

被引：7
|
作者：
Zhao, Shihua [1 ,2 ,3 ]
Ma, Huanfeng [1 ]
Wang, Lingling [2 ,3 ]
Yang, Lei [4 ]
Cui, Yuting [1 ]
机构：
[1] Shangqiu Normal Univ, Dept Phys & Informat Engn, Shangqiu 476000, Henan Province, Peoples R China
[2] Hunan Univ, Minist Educ, Key Lab Micronano Optoelect Devices, Changsha 410082, Hunan, Peoples R China
[3] Hunan Univ, Sch Phys & Microelect, Changsha 410082, Hunan, Peoples R China
[4] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China
来源：
SURFACE REVIEW AND LETTERS | 2010年 / 17卷 / 04期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Electrodeposited method; nanoneedle arrays; growth mechanism; photoluminescence (PL); PHOTOLUMINESCENCE; NANOSTRUCTURES; GROWTH;
D O I：
10.1142/S0218625X10014223
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
ZnO nanoneedle arrays were obtained from the transformation of ZnC2O4 precipitate, which was synthesized via electrodeposited method at room temperature. The diameter of those grown ZnO nanoneedles is about 80 nm. The XRD pattern and the HRTEM image indicate that the grown ZnO nanoneedles have the preferential growth toward (101) direction. The possible growth mechanism of the ZnC2O4 nanoneedle arrays is proposed and is different from the traditional V-L-S and V-S models. The study on the PL spectrum of those ZnO nanoneedles shows the near band-edge emission band (379 nm) and the green emission band (510 nm). Especially, a red shift of the green emission band emerges with the increase of the annealing temperature and time.
引用
收藏
页码：425 / 430
页数：6
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