Title: Shape transition of unstrained flattest single-walled carbon nanotubes under pressure

Abstract

Single walled carbon nanotube's (SWCNT's) cross section can be flattened under hydrostatic pressure. One example is the cross section of a single walled carbon nanotube successively deforms from the original round shape to oval shape, then to peanut-like shape. At the transition point of reversible deformation between convex shape and concave shape, the side wall of nanotube is flattest. This flattest tube has many attractive properties. In the present work, an approximate approach is developed to determine the equilibrium shape of this unstrained flattest tube and the curvature distribution of this tube. Our results are in good agreement with recent numerical results, and can be applied to the study of pressure controlled electric properties of single walled carbon nanotubes. The present method can also be used to study other deformed inorganic and organic tube-like structures.

Authors:

Mu, Weihua ^[1]; Cao, Jianshu ^[2]; Ou-Yang, Zhong-can ^[3]

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+ Show Author Affiliations

1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Theoretical Physics, Kavli Inst. for Theoretical Physics
2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Singapore-MIT Alliance for Research and Technology (SMART) (Singapore)
3. Chinese Academy of Sciences (CAS), Beijing (China). Inst. of Theoretical Physics, Kavli Inst. for Theoretical Physics; Singapore-MIT Alliance for Research and Technology (SMART) (Singapore); Tsinghua Univ., Beijing (China)

Publication Date:

Tue Jan 28 00:00:00 EST 2014

Research Org.:

Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE)

Sponsoring Org.:

USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:

1383646

Grant/Contract Number:  

SC0001088

Resource Type:

Accepted Manuscript

Journal Name:

Journal of Applied Physics

Additional Journal Information:

Journal Volume: 115; Journal Issue: 4; Related Information: CE partners with Massachusetts Institute of Technology (lead); Brookhaven National Laboratory; Harvard University; Journal ID: ISSN 0021-8979

Publisher:

American Institute of Physics (AIP)

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY; solar (photovoltaic); solid state lighting; photosynthesis (natural and artificial); charge transport; optics; synthesis (novel materials); synthesis (self-assembly); synthesis (scalable processing)