Surface modification effect on photoluminescence of individual ZnO nanorods with different diameters
文献类型：期刊论文
| 作者 | Zhao, D ; Zhang, XX ; Dong, HB ; Yang, LJ ; Zeng, QS ; Li, JZ ; Cai, L ; Zhang, X ; Luan, PS ; Zhang, Q ; Tu, M ; Wang, S ; Zhou, WY ; Xie, SS |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2013 |
| 卷号 | 5期号:10页码:4443 |
| ISSN号 | 2040-3364 |
| 通讯作者 | Xie, SS (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Optical properties of Al2O3 coated individual ZnO nanorods (NRs) with different diameters were studied by confocal micro-photoluminescence spectroscopy. The one-dimensional ZnO/Al2O3 core-shell NRs showed enhanced near band-edge emission compared with the same ZnO NRs before Al2O3 coating at room temperature. Besides, the relative intensity of the deep-level emission with respect to the near band-edge emission was reduced. A model was proposed to explain these spectral changes. For ZnO NRs with diameters above 360 nm, a multi-mode behavior resulting from whispering gallery resonance was observed. In addition, selective enhancement or quenching of different whispering gallery modes in ultraviolet (UV) emission was observed after Al2O3 coating at room temperature, which is due to the larger refractive index of Al2O3 compared with air. We proposed a model to explain these spectral changes as well. By comparing the optical properties before and after surface coating, our results suggest that surface coating of an Al2O3 layer is an effective way to tailor the optical properties of ZnO NRs. |
| 资助信息 | National Basic Research Program of China [2012CB932302]; National Natural Science Foundation of China [51172271, 90921012]; Beijing Municipal Education Commission [YB20108000101] |
| 语种 | 英语 |
| 公开日期 | 2014-01-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57530]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhao, D,Zhang, XX,Dong, HB,et al. Surface modification effect on photoluminescence of individual ZnO nanorods with different diameters[J]. NANOSCALE,2013,5(10):4443. |
| APA | Zhao, D.,Zhang, XX.,Dong, HB.,Yang, LJ.,Zeng, QS.,...&Xie, SS.(2013).Surface modification effect on photoluminescence of individual ZnO nanorods with different diameters.NANOSCALE,5(10),4443. |
| MLA | Zhao, D,et al."Surface modification effect on photoluminescence of individual ZnO nanorods with different diameters".NANOSCALE 5.10(2013):4443. |
入库方式： OAI收割
来源：物理研究所
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