Thickness-Dependent Strain Effect on the Deformation of the Graphene-Encapsulated Au Nanoparticles

Journal of Nanomaterials. 2014;2014 DOI 10.1155/2014/989672

 

Journal Homepage

Journal Title: Journal of Nanomaterials

ISSN: 1687-4110 (Print); 1687-4129 (Online)

Publisher: Hindawi Publishing Corporation

LCC Subject Category: Technology: Technology (General)

Country of publisher: Egypt

Language of fulltext: English

Full-text formats available: PDF, HTML, ePUB

 

AUTHORS

Shuangli Ye (Institute of Microelectronics and Information Technology, Wuhan University, Wuhan, Hubei 430072, China)
Honghua Huang (Institute of Microelectronics and Information Technology, Wuhan University, Wuhan, Hubei 430072, China)
Cailei Yuan (Laboratory of Nanomaterials and Sensors, School of Physics, Electronics and Communication, Jiangxi Normal University, Nanchang, Jiangxi 330022, China)
Feng Liu (Institute of Microelectronics and Information Technology, Wuhan University, Wuhan, Hubei 430072, China)
Min Zhai (Institute of Microelectronics and Information Technology, Wuhan University, Wuhan, Hubei 430072, China)
Xinzhi Shi (Institute of Microelectronics and Information Technology, Wuhan University, Wuhan, Hubei 430072, China)
Chang Qi (Institute of Microelectronics and Information Technology, Wuhan University, Wuhan, Hubei 430072, China)
Gaofeng Wang (Institute of Microelectronics and Information Technology, Wuhan University, Wuhan, Hubei 430072, China)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 16 weeks

 

Abstract | Full Text

The strain effect on graphene-encapsulated Au nanoparticles is investigated. A finite-element calculation is performed to simulate the strain distribution and morphology of the monolayer and multilayer graphene-encapsulated Au nanoparticles, respectively. It can be found that the inhomogeneous strain and deformation are enhanced with the increasing shrinkage of the graphene shell. Moreover, the strain distribution and deformation are very sensitive to the layer number of the graphene shell. Especially, the inhomogeneous strain at the interface between the graphene shell and encapsulated Au nanoparticles is strongly tuned by the graphene thickness. For the mono- and bilayer graphene-encapsulated Au nanoparticles, the dramatic shape transformation can be observed. However, with increasing the graphene thickness further, there is hardly deformation for the encapsulated Au nanoparticles. These simulated results indicate that the strain and deformation can be designed by the graphene layer thickness, which provides an opportunity to engineer the structure and morphology of the graphene-encapsulated nanoparticles.