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- W1450801902 abstract "Recently experiments showed that nodal structural defects are readily formed in the synthesis of single-walled carbon nanotubes (SWNTs) and consequently, SWNTs are likely to deviate from well-defined seamless tubular structures. Here, using graphene-helix growth model, we describe structural details of feasible nodal defects in SWNTs and investigate how mechanical and electronic properties of SWNTs would change in the presence of them using computational methods. Surprisingly atomistic simulations of SWNTs with nodal defects show excellent agreement with previous structural, tensile, and ball-milling experiments whose results cannot be explained using conventional models. The tensile failure of SWNTs with nodal defects requires about four- or six-fold lower strength than pristine ones and these SWNTs are comparatively prone to damage under a lateral compressive biting. We reveal that electronic band-gap of SWNT(12,8) would be remarkably reduced in the presence of nodal defects. This study strongly indicates universality of nodal defects in SWNTs requesting new theoretical framework in SWNT modelling for proper characteristics prediction." @default.
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- W1450801902 date "2014-10-01" @default.
- W1450801902 modified "2023-09-27" @default.
- W1450801902 title "Characterization of Single-Walled Carbon Nanotubes with Nodal Structural Defects" @default.
- W1450801902 hasPublicationYear "2014" @default.
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