|
|||||
|
|
Structural and optical properties of ZnO nanorods grown on MgxZn1−xO buffer layers |
|
| Authors: | Liang-Wen Ji Te-Hua Fang Tung-Te Chu Wei-Shun Shi Tian-Long Chang Jingchang Zhong |
| Institution: | a Institute of Electro-Optical and Materials Science, National Formosa University, Yunlin 632, Taiwan b Department of Applied Science, National Taitung University, Taitung 950, Taiwan c National Key Lab of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun 130022, PR China |
| Abstract: | ZnO nanorod arrays were synthesized by chemical-liquid deposition techniques on MgxZn1−xO (x = 0, 0.07 and 0.15) buffer layers. It is found that varying the Mg concentration could control the diameter, vertical alignment, crystallization, and density of the ZnO nanorods. The X-ray diffraction (XRD), transmission electron microscopy (TEM), and selected area electron diffraction (SAED) data show the ZnO nanorods prefer to grow in the (0 0 2) c-axis direction better with a larger Mg concentration. The photoluminescence (PL) spectra of ZnO nanorods exhibit that the ultraviolet (UV) emission becomes stronger and the defect emission becomes weaker by increasing the Mg concentration in MgxZn1−xO buffer layers. |
| Keywords: | 81 07 &minus b 68 65 &minus k 78 67 &minus n 71 55 Gs 81 15 Lm |
| 本文献已被 ScienceDirect 等数据库收录！ | |