Growth and optical properties of peculiar ZnO tetrapods

被引：19
作者：
He, Fa-Quan [1 ]
Zhao, Ya-Pu [1 ]
机构：
[1] Chinese Acad Sci, Inst Mech, State Key Lab Non Linear Mech, Beijing 100080, Peoples R China
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2006年 / 39卷 / 10期
关键词：
D O I：
10.1088/0022-3727/39/10/021
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Regular ZnO tetrapods with different morphologies have been obtained on Si( 100) substrate via the chemical vapour deposition approach. Varying the growth temperature and gas rate, we have obtained different structured ZnO materials: tetrapods with a large hexagonal crown, a flat top and a small hexagonal crown. The results suggest that these tetrapods are all single crystals with a wurtzite structure that grow along the (0001) direction. However, photoluminescence spectra shows that their optical properties are quite different: for those with large hexagonal crown, the green emission overwhelms that of the near band-edge (NBE) ultraviolet (UV) peak, while others have only a strong NBE UV peak at similar to 386 nm.
引用
收藏
页码：2105 / 2108
页数：4
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