Vacancy mediated clipping of multi-layered graphene: A precursor for 1, 2 and 3D carbon structures

Rahul P. Hardikar; Atanu Samanta; Aaditya Manjanath; Abhishek K. Singh

doi:10.1016/j.carbon.2015.06.040

Vacancy mediated clipping of multi-layered graphene: A precursor for 1, 2 and 3D carbon structures

Rahul P. Hardikar, Atanu Samanta, Aaditya Manjanath, Abhishek K. Singh

Indian Institute of Science Bangalore

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Using first principles calculations, we show that the overlapping defects in bi-layer graphene (both AA- and AB-stacked) interact forming inter-layer covalent bonds, giving rise to two-dimensional (2D) clipped structures, without explicit use of functional groups. These clipped structures can be transformed into one-dimensional (1D) double wall nanotubes (DWCNT) or multi-layered three dimensional (3D) bulk structures. These clipped structures show good mechanical strength due to covalent bonding between multi-layers. Clipping also provides a unique way to simultaneously harness the conductivity of both walls of a double wall nanotube through covalently bonded scattering junctions. With additional conducting channels and improved mechanical stability, these clipped structures can lead to a myriad of applications in novel devices.

Original language	English
Pages (from-to)	67-72
Number of pages	6
Journal	Carbon
Volume	94
DOIs	https://doi.org/10.1016/j.carbon.2015.06.040
State	Published - 29 Aug 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

Funding

The authors would like to acknowledge Supercomputing Education Research Centre (SERC) and Materials Research Centre (MRC) for supercomputing facilities. RH acknowledges the financial support from the Korean Institute of Science (KIST) . The authors acknowledge the financial support from DST Nanomission.

Funders	Funder number
Korean Institute of Science
Department of Science and Technology, Ministry of Science and Technology, India

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10.1016/j.carbon.2015.06.040

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AB - Using first principles calculations, we show that the overlapping defects in bi-layer graphene (both AA- and AB-stacked) interact forming inter-layer covalent bonds, giving rise to two-dimensional (2D) clipped structures, without explicit use of functional groups. These clipped structures can be transformed into one-dimensional (1D) double wall nanotubes (DWCNT) or multi-layered three dimensional (3D) bulk structures. These clipped structures show good mechanical strength due to covalent bonding between multi-layers. Clipping also provides a unique way to simultaneously harness the conductivity of both walls of a double wall nanotube through covalently bonded scattering junctions. With additional conducting channels and improved mechanical stability, these clipped structures can lead to a myriad of applications in novel devices.

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Vacancy mediated clipping of multi-layered graphene: A precursor for 1, 2 and 3D carbon structures

Abstract

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