Geometry strategy for engineering the recombination possibility of excitons in nanowires

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 高性能陶瓷和超微结构国家重点实验室 > 期刊论文

	Geometry strategy for engineering the recombination possibility of excitons in nanowires
	Wang, Youwei 1; Zhang, Yubo 1; Zhu, Haiming 2; Liu, Jianjun 1; Lian, Tianquan 2; Zhang, Wenqing 1,3
刊名	NANOSCALE
	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
内容类型	期刊论文
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.