Morphological evolution of ZnO nanostructures: experimental and preliminary simulation studies
文献类型：期刊论文
| 作者 | Tian, Huijuan1,2; Xu, Junbo1; Tian, Yajun3; Deng, Pingye4; Wen, Hao1 |
| 刊名 | CRYSTENGCOMM
 |
| 出版日期 | 2012 |
| 卷号 | 14期号:17页码:5539-5543 |
| ISSN号 | 1466-8033 |
| 关键词 | thermal evaporation optical-properties vapor-deposition growth photoluminescence nanowires arrays nanobelts transport nanonails |
| 其他题名 | Crystengcomm |
| 中文摘要 | ZnO nanostructures with various morphologies were prepared by thermal evaporation of Zn powders at 600 degrees C and atmospheric pressure without any catalysts. Field-emission scanning electron microscope images show various ZnO morphologies at both the downstream and upstream side of Zn sources. A continuous morphological transition from nails to needles was observed upstream. The morphologies downstream are nanopencils, and the tip of the pencils is smaller as the position approaches the Zn source. In general, the size upstream is larger than the one downstream. X-ray diffraction patterns indicate that all ZnO nanostructures grow preferentially along the [0001] direction. Room temperature photoluminescence spectra show that the intensity ratio of UV to green emission increases from the upstream products to the downstream products. The experimental results are elucidated through computational fluid dynamics simulation. Concentration fields of O-2 and Zn vapor show that the distributions of O-2 and Zn vapor are uneven upstream and uniform downstream. |
| 英文摘要 | ZnO nanostructures with various morphologies were prepared by thermal evaporation of Zn powders at 600 degrees C and atmospheric pressure without any catalysts. Field-emission scanning electron microscope images show various ZnO morphologies at both the downstream and upstream side of Zn sources. A continuous morphological transition from nails to needles was observed upstream. The morphologies downstream are nanopencils, and the tip of the pencils is smaller as the position approaches the Zn source. In general, the size upstream is larger than the one downstream. X-ray diffraction patterns indicate that all ZnO nanostructures grow preferentially along the [0001] direction. Room temperature photoluminescence spectra show that the intensity ratio of UV to green emission increases from the upstream products to the downstream products. The experimental results are elucidated through computational fluid dynamics simulation. Concentration fields of O-2 and Zn vapor show that the distributions of O-2 and Zn vapor are uneven upstream and uniform downstream. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary ; Crystallography |
| 研究领域[WOS] | Chemistry ; Crystallography |
| 关键词[WOS] | THERMAL EVAPORATION ; OPTICAL-PROPERTIES ; VAPOR-DEPOSITION ; GROWTH ; PHOTOLUMINESCENCE ; NANOWIRES ; ARRAYS ; NANOBELTS ; TRANSPORT ; NANONAILS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000306972100026 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6400]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Natl Inst Clean & Low Carbon Energy, Beijing 102209, Peoples R China 4.Beijing Ctr Phys & Chem Anal, Beijing 100089, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Huijuan,Xu, Junbo,Tian, Yajun,et al. Morphological evolution of ZnO nanostructures: experimental and preliminary simulation studies[J]. CRYSTENGCOMM,2012,14(17):5539-5543. |
| APA | Tian, Huijuan,Xu, Junbo,Tian, Yajun,Deng, Pingye,&Wen, Hao.(2012).Morphological evolution of ZnO nanostructures: experimental and preliminary simulation studies.CRYSTENGCOMM,14(17),5539-5543. |
| MLA | Tian, Huijuan,et al."Morphological evolution of ZnO nanostructures: experimental and preliminary simulation studies".CRYSTENGCOMM 14.17(2012):5539-5543. |
入库方式： OAI收割
来源：过程工程研究所
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