In situ observations of self-repairing single-walled carbon nanotubes

In situ observations of self-repairing single-walled carbon nanotubes

Single-walled carbon nanotubes are shown to have self-repairing capabilities exceeding that predicted by theory. Time-series aberration-corrected low-voltage transmission electron microscopy is used to study the defect dynamics of single-walled carbon nanotubes in situ. We confirm experimentally pre...

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Détails bibliographiques
Auteurs principaux: Boerrnert, F, Gorantla, S, Bachmatiuk, A, Warner, J, Ibrahim, I, Thomas, J, Gemming, T, Eckert, J, Cuniberti, G, Buechner, B, Ruemmeli, M
Format: Journal article
Langue:English
Publié: 2010
Description
Résumé:Single-walled carbon nanotubes are shown to have self-repairing capabilities exceeding that predicted by theory. Time-series aberration-corrected low-voltage transmission electron microscopy is used to study the defect dynamics of single-walled carbon nanotubes in situ. We confirm experimentally previous theoretical predictions for the agglomeration of adatoms forming protrusions and subsequent ejection. An explanation for the preferred destruction of smaller-diameter tubes is proposed. The complete healing of a ∼20 -atom multivacancy in a nanotube wall is shown while theory only predicts the healing of much smaller holes. © 2010 The American Physical Society.

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