Chirality transitions and transport properties of individual few-walled carbon nanotubes as revealed by in situ TEM probing

doi:10.1016/j.ultramic.2018.07.012

CORC > 金属研究所 > 中国科学院金属研究所

	Chirality transitions and transport properties of individual few-walled carbon nanotubes as revealed by in situ TEM probing
	Tang, DM ; Kvashnin, DG ; Cretu, O ; Nemoto, Y 4; Uesugi, F 4; Takeguchi, M 4; Zhou, X ; Hsia, FC ; Liu, C ; Sorokin, PB
刊名	ULTRAMICROSCOPY
	2018-11-01
卷号	194 页码:108-116
关键词	Carbon nanotubes Chirality In situ transmission electron microscopy Nanobeam electron diffraction Metal-to-semiconductor transition Molecular dynamics simulation
ISSN号	0304-3991
DOI	10.1016/j.ultramic.2018.07.012
英文摘要	Physical properties of carbon nanotubes (CNTs) are closely related to the atomic structure, i.e. the chirality. It is highly desirable to develop a technique to modify their chirality and control the resultant transport properties. Herein, we present an in situ transmission electron microscopy (TEM) probing method to monitor the chirality transition and transport properties of individual few-walled CNTs. The changes of tube structure including the chirality are stimulated by programmed bias pulses and associated Joule heating. The chirality change of each shell is analyzed by nanobeam electron diffraction. Supported by molecular dynamics simulations, a preferred chirality transition path is identified, consistent with the Stone-Wales defect formation and dislocation sliding mechanism. The electronic transport properties are measured along with the structural changes, via fabricating transistors using the individual nanotubes as the suspended channels. Metal-to-semiconductor transitions are observed along with the chirality changes as confirmed by both the electron diffraction and electrical measurements. Apart from providing an alternative route to control the chirality of CNTs, the present work demonstrates the rare possibility of obtaining the dynamic structure-properties relationships at the atomic and molecular levels.
学科主题	Microscopy
语种	英语
WOS记录号	WOS:000450281700013
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79846]
专题	金属研究所_中国科学院金属研究所
作者单位	1.NIMS, Int Ctr Mat Nanoarchitecton MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan 2.Chinese Acad Sci, IMR, Shenyang Natl Lab Mat Sci SYNL, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Kvashnin, Dmitry G.; Sorokin, Pavel B.] Natl Univ Sci & Technol MISiS, 4 Leninskiy Prospekt, Moscow 119049, Russia 4.Kvashnin, Dmitry G.; Sorokin, Pavel B.] Emanuel Inst Biochem Phys, 4 Kosigina St, Moscow 119334, Russia 5.NIMS, Transmiss Electron Microscopy Stn, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan 6.Sorokin, Pavel B.] Technol Inst Superhard & Novel Carbon Mat, 7a Centralnaya Str, Moscow 108840, Russia 7.QUT, Sci & Engn Fac, Sch Chem Phys & Mech Engn, 2st George Str, Brisbane, Qld 4000, Australia 8.Univ Wollongong, Australian Inst Innovat Mat, Wollongong, NSW 2500, Australia
推荐引用方式 GB/T 7714	Tang, DM,Kvashnin, DG,Cretu, O,et al. Chirality transitions and transport properties of individual few-walled carbon nanotubes as revealed by in situ TEM probing[J]. ULTRAMICROSCOPY,2018,194:108-116.
APA	Tang, DM.,Kvashnin, DG.,Cretu, O.,Nemoto, Y.,Uesugi, F.,...&Bando, Y.(2018).Chirality transitions and transport properties of individual few-walled carbon nanotubes as revealed by in situ TEM probing.ULTRAMICROSCOPY,194,108-116.
MLA	Tang, DM,et al."Chirality transitions and transport properties of individual few-walled carbon nanotubes as revealed by in situ TEM probing".ULTRAMICROSCOPY 194(2018):108-116.