Influence of zns and mgo shell on the photoluminescence properties of zno core/shell nanowires
文献类型：期刊论文
| 作者 | Meng, X. Q.; Peng, Haowei; Gai, Y. Q.; Li, Jingbo |
| 刊名 | Journal of physical chemistry c
 |
| 出版日期 | 2010-01-28 |
| 卷号 | 114期号:3页码:1467-1471 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/jp909176p |
| 通讯作者 | Li, jingbo(jbli@semi.ac.cn) |
| 英文摘要 | By sequential growth of the core and shell of different materials, zno/zns and zno/mgo core/shell nanowire arrays are fabricated. photoluminescence properties of these samples with different shell thicknesses are studied in detail. the results indicate that the zns shell thickness as a function of treatment time will noticeably change the photoluminescence intensity of the zno nanowires, whereas the mgo shell will not change the photoluminescence intensity any more after it saturates the surface dangling bonds of zno core. large-scale first-principles calculations indicate that, unlike the zno/mgo core/shell nanowires, the electrons and holes of which are both confined in the core of the nanowires (type-i heterostructures), the zno/zns core/shell nanowires are type-ii heterostructures, the electrons and holes of which are respectively confined in the core and the shell; as a result, the separation of electrons and holes in the zno/zns core/shell nanowires will reduce the spatial overlap between them, leading to the decrease of the photoluminescence intensity in this system. the experimental observations are in good agreement with first-principles calculations |
| WOS关键词 | COLLOIDAL NANOCRYSTAL HETEROSTRUCTURES ; OPTICAL-PROPERTIES ; NANOSTRUCTURES ; NANORODS ; DOTS |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000273672500011 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427889 |
| 专题 | 半导体研究所 |
| 通讯作者 | Li, Jingbo |
| 作者单位 | Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, X. Q.,Peng, Haowei,Gai, Y. Q.,et al. Influence of zns and mgo shell on the photoluminescence properties of zno core/shell nanowires[J]. Journal of physical chemistry c,2010,114(3):1467-1471. |
| APA | Meng, X. Q.,Peng, Haowei,Gai, Y. Q.,&Li, Jingbo.(2010).Influence of zns and mgo shell on the photoluminescence properties of zno core/shell nanowires.Journal of physical chemistry c,114(3),1467-1471. |
| MLA | Meng, X. Q.,et al."Influence of zns and mgo shell on the photoluminescence properties of zno core/shell nanowires".Journal of physical chemistry c 114.3(2010):1467-1471. |
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来源：半导体研究所
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