云斯宁 Likes:

Affiliation of Author(s):

材料科学与工程学院

Journal:

Physica B

Key Words:

中文关键字：水热合成，英文关键字：Nanorods; Nanostructures;Photoluminescence;Optical

Abstract:

High-density, single-crystal, quasi-aligned, Al-doped ZnO nanorod arrays were grown on a silicon substrate using a low temperature hydrothermal process. Different Al atomic concentrations have been successfully doped into the ZnO lattice using different Zn and Al precursors in the synthesis solution. The effects of Al doping on the microstructure characteristics, elemental composition and optical properties of the nanorod arrays were studied. It has been shown that the morphology, density, and surface compositions of ZnO nanorod arrays are sensitive to the concentration and variety of zinc and aluminum precursors. The ratio of ultraviolet to visible emission peak (IUV/IVis) increases as the aluminum nitrate concentration increases up to 5mM. The best optical property was obtained for Al-doped ZnO nanorods grown in a 0.04M zinc acetate dihydrate solution with 5mM of aluminum sulfate hydrate. The improved optical property in Al-doped ZnO nanorods can be attributed to the decrease in oxygen deficiency after Al doping.

Note:

云斯宁

Co-author:

JuneyoungLee,JahyunYang,SangwooLim

First Author:

yunsining

Indexed by:

Journal paper

Volume:

卷：

Issue:

期：405

Page Number:

页：413–419

Translation or Not:

no

Date of Publication:

2010-08-01