Effect of O-2 flow rate on the morphological and optical properties of ZnO nanocrystals
文献类型：会议论文
| 作者 | Tian, H. J. ; Xu, J. B. ; Tian, Y. J. ; Wen, H. |
| 出版日期 | 2012 |
| 会议名称 | 2nd International Conference on Chemical Engineering and Advanced Materials (CEAM 2012) |
| 会议日期 | JUL 13-15, 2012 |
| 会议地点 | Guangzhou, PEOPLES R CHINA |
| 关键词 | ZnO nanocrystal Chemical vapor deposition Morphological evolution Computational fluid dynamics VAPOR-DEPOSITION CONTROLLED GROWTH NANOSTRUCTURES PHOTOLUMINESCENCE ARRAYS NANOWIRES FILMS TEMPERATURE TRANSPORT |
| 页码 | 70-75 |
| 中文摘要 | The morphological and optical properties of ZnO nanocrystals prepared by thermal evaporation of Zn powders were studied at both upstream and downstream under different O-2 flow rates. The morphological evolution was observed by scanning electron microscopy. With O-2 flow rates changing from 0.25 sccm to 1 sccm, the caps of the ZnO nanonails become bigger and the stems gradually disappear at upstream, and the diameters at the top of ZnO nanorods become thicker and the length become longer at downstream. Room temperature PL study shows that UV emission is relatively enhanced with increasing O-2 flow rates. Computational fluid dynamics simulation was performed, which indicates that the morphological evolution of the ZnO structures results from the competition between the axial growth and the radial growth based on different O-2 and Zn vapor partial pressure. |
| 收录类别 | CPCI |
| 会议网址 | |
| 会议录 | ADVANCES IN CHEMISTRY RESEARCH II, PTS 1-3 Book Series: Advanced Materials Research
 |
| 会议录出版者 | Trans Tech Publications Ltd |
| 语种 | 英语 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11221]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 推荐引用方式 GB/T 7714 |
Tian, H. J.,Xu, J. B.,Tian, Y. J.,et al. Effect of O-2 flow rate on the morphological and optical properties of ZnO nanocrystals[C]. 见:2nd International Conference on Chemical Engineering and Advanced Materials (CEAM 2012). Guangzhou, PEOPLES R CHINA. JUL 13-15, 2012. |
入库方式： OAI收割
来源：过程工程研究所
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