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Anomalous characteristics of pore formation in Graphene induced by Si-nanoparticle bombardment

Published online by Cambridge University Press:  24 November 2017

Jae Hyun Park ,
Ramki Murugesan ,
Jaekwang Lee  and
Narayana R. Aluru
Jae Hyun Park*
Affiliation:
Department of Aerospace and Software Engineering and Research Center for Aircraft Parts Technology, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
Ramki Murugesan
Affiliation:
Graduate School of Mechanical and Aerospace Engineering, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
Jaekwang Lee
Affiliation:
Department of Physics, Pusan National University, Busan 46241, South Korea
Narayana R. Aluru
Affiliation:
Beckman Institute for Advanced Science and Technology and Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
*
Address all correspondence to Jae Hyun Park at parkj@gnu.ac.kr
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Abstract

Graphene nanopores are utilized in various notable applications such as water desalination, molecular separation, and DNA sequencing. However, the creation of stable nanopores is still challenging due to the self-healing nature of graphene. In this study, using molecular dynamics simulations we explore the drilling of nanopores through graphene by bombardment with Si-nanoparticles. This enables the Si-passivation along the nanopore rim, which is known as an efficient way to stabilize graphene nanopores. The interplay between graphene and projectile causes the anomalous behaviors such as local maxima depending on particle size. The observations are thoroughly analyzed with interaction energy and shape changes.

Type
Research Letters
Information
MRS Communications , Volume 7 , Issue 4 , December 2017 , pp. 840 - 847
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Copyright
Copyright © Materials Research Society 2017 

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