Synthesis and characterization of aligned ZnO/MgO core-shell nanorod arrays on ITO substrate

被引：9
|
作者：
Gao, M. [1 ,2 ,3 ]
Yang, J. H. [3 ]
Yang, L. L. [3 ]
Zhang, Y. J. [3 ]
Liu, H. L. [3 ]
Fan, H. G. [3 ]
Lang, J. H. [3 ]
Sui, Y. R. [3 ]
Feng, B. [1 ,2 ,3 ]
Sun, Y. F. [1 ,2 ,3 ]
Zhang, Z. Q. [3 ]
Song, H. [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130033, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
[3] Jilin Normal Univ, Inst Condensed State Phys, Minist Educ, Key Lab Funct Mat Phys & Chem, Siping 136000, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2013年 / 112卷 / 04期
基金：
中国国家自然科学基金;
关键词：
PHOTOLUMINESCENCE PROPERTIES; AQUEOUS-SOLUTIONS; ZNO NANOWIRES; ZINC-OXIDE; DEVICES; MGO; HETEROSTRUCTURES; FABRICATION; NANOTUBES; GROWTH;
D O I：
10.1007/s00340-013-5436-z
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
ZnO/MgO core-shell nanorod arrays were synthesized successfully by the hydrothermal growth method. Photoluminescence (PL) emission from the nanorods showed remarkable enhancement after the growth of the MgO layer. The ZnO/MgO core-shell nanorods are type-I heterostructures, the electrons and holes of which are both confined in the core of the nanorods, as a result, leading to the increase of the photoluminescence intensity in this system. In addition, another reason for the enhancement of PL emission was the deposition of MgO shell suppression of surface defects. In addition, the activation energy (E (a)) of 63 meV in the ZnO/MgO core-shell nanorods was obtained from temperature-dependent PL.
引用
收藏
页码：539 / 545
页数：7
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