Lack of dependence of the Raman frequency of optical vibrational modes on excitation wavelength in polar nanosemiconductors

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	Lack of dependence of the Raman frequency of optical vibrational modes on excitation wavelength in polar nanosemiconductors
	Zhang, Shu-Lin ; Zhang, Yanbin ; Liu, Wei ; Fu, Zhengdong ; Yan, Yan ; Chen, Jing ; Ma, Rui ; Song, Yang ; Zhao, Jun ; Xu, Lv-Shun
刊名	APPLIED PHYSICS LETTERS
	2006-08-07
卷号	89 期号:6
关键词	silicon nanowires scattering crystals density dynamics nanorods spectra si
ISSN号	0003-6951
其他题名	Appl. Phys. Lett.
中文摘要	A lack of dependence of the Raman frequency of optical vibrational modes on excitation wavelength in polar nanosemiconductors was observed. This is in contrast to the earlier observed dependence in nonpolar nanomaterials: carbon nanotubes and Si nanowires. This difference has been ascribed to the different crystallographic natures of their Raman spectra: crystalline for nonpolar and amorphous for polar nanosemiconductors. The result has been explored theoretically to the Raman spectra being insensitive to sample sizes and thus indicates that the size confinement effect, a basic effect in nanomaterials, does not exhibit in the optical vibrational modes of polar nanosemiconductors. (c) 2006 American Institute of Physics.
英文摘要	A lack of dependence of the Raman frequency of optical vibrational modes on excitation wavelength in polar nanosemiconductors was observed. This is in contrast to the earlier observed dependence in nonpolar nanomaterials: carbon nanotubes and Si nanowires. This difference has been ascribed to the different crystallographic natures of their Raman spectra: crystalline for nonpolar and amorphous for polar nanosemiconductors. The result has been explored theoretically to the Raman spectra being insensitive to sample sizes and thus indicates that the size confinement effect, a basic effect in nanomaterials, does not exhibit in the optical vibrational modes of polar nanosemiconductors. (c) 2006 American Institute of Physics.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Applied
研究领域[WOS]	Physics
关键词[WOS]	SILICON NANOWIRES ; SCATTERING ; CRYSTALS ; DENSITY ; DYNAMICS ; NANORODS ; SPECTRA ; SI
收录类别	SCI
原文出处	://WOS:000239690800092
语种	英语
WOS记录号	WOS:000239690800092
公开日期	2013-10-24
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/4003]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 2.CAS, Inst Proc Engn, Beijing 100080, Peoples R China 3.Tsing Hua Univ, Dept Chem, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shu-Lin,Zhang, Yanbin,Liu, Wei,et al. Lack of dependence of the Raman frequency of optical vibrational modes on excitation wavelength in polar nanosemiconductors[J]. APPLIED PHYSICS LETTERS,2006,89(6).
APA	Zhang, Shu-Lin.,Zhang, Yanbin.,Liu, Wei.,Fu, Zhengdong.,Yan, Yan.,...&Yuan, Fangli.(2006).Lack of dependence of the Raman frequency of optical vibrational modes on excitation wavelength in polar nanosemiconductors.APPLIED PHYSICS LETTERS,89(6).
MLA	Zhang, Shu-Lin,et al."Lack of dependence of the Raman frequency of optical vibrational modes on excitation wavelength in polar nanosemiconductors".APPLIED PHYSICS LETTERS 89.6(2006).