Geometry strategy for engineering the recombination possibility of excitons in nanowires
文献类型：期刊论文
| 作者 | Wang, Youwei1; Zhang, Yubo1; Zhu, Haiming2; Liu, Jianjun1; Lian, Tianquan2; Zhang, Wenqing1,3 |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2016 |
| 卷号 | 8期号:13页码:7318-7325 |
| 英文摘要 | We proposed a geometry strategy to engineer the radiative recombination possibility and thus the lifetime of excitons in nanowires of some photovoltaic semiconductors by using theoretical analysis and first-principles calculations. We demonstrated that the shape can engineer the symmetry of the wave-functions of band-edge states and influence the radiative recombination possibility. The nanowires need to satisfy the following requirements to forbid the radiative recombination possibility of band-edge excitons: (i) wurtzite structure; (ii) p(xy)-characterized wave-function of VBM state and (iii) C-3v-symmetry shape. The geometrical symmetry results in the p(xy)-characterized C-3v-symmetry wave-function of VBM state and leads to forbidden radiative recombination of band-edge excitons. The geometry strategy offers a flexible proposal to prolong the exciton lifetime, leaving optical absorption impregnable. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 关键词[WOS] | CDSE QUANTUM DOTS ; CORE/SHELL SEMICONDUCTOR NANOCRYSTALS ; ZINC BLENDE ; OPTICAL-PROPERTIES ; ELECTRONIC-STRUCTURE ; WURTZITE ; NANOPARTICLES ; ENERGY ; CONFINEMENT ; EMISSION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373060600046 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23014]  |
| 专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Emory Univ, Dept Chem, 1515 Pierce Dr, Atlanta, GA 30322 USA 3.Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Youwei,Zhang, Yubo,Zhu, Haiming,et al. Geometry strategy for engineering the recombination possibility of excitons in nanowires[J]. NANOSCALE,2016,8(13):7318-7325. |
| APA | Wang, Youwei,Zhang, Yubo,Zhu, Haiming,Liu, Jianjun,Lian, Tianquan,&Zhang, Wenqing.(2016).Geometry strategy for engineering the recombination possibility of excitons in nanowires.NANOSCALE,8(13),7318-7325. |
| MLA | Wang, Youwei,et al."Geometry strategy for engineering the recombination possibility of excitons in nanowires".NANOSCALE 8.13(2016):7318-7325. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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