Wrinkles in graphene with desirable morphology have practical significance for electronic applications. Here we carry out a systematic molecular dynamics study of the wrinkling instability of graphene on substrate-supported nanoparticles (NPs). At a large NP dispersion distance, a monolayer graphene adheres to the substrate and bulges out locally to wrap around individual NPs, forming isolated dome-shaped protrusions. At a small NP dispersion distance, tunneling wrinkles form in graphene to bridge the NP-induced protrusions. A critical NP dispersion distance for the onset of tunneling wrinkle instability of graphene is determined as a function of the NP size. The prediction from the modeling study agrees well with recent experimental observations. Results from the present study offer further insights into the formation of desirable wrinkles in graphene deposited on a substrate with engineered protrusions and, thus, can potentially enable novel design of graphene-based electronics.
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University of Maryland,
University of Maryland,
e-mail: LiT@umd.edu
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June 2014
Research-Article
Wrinkling Instability of Graphene on Substrate-Supported Nanoparticles
Shuze Zhu,
University of Maryland,
Shuze Zhu
Department of Mechanical Engineering
,University of Maryland,
College Park, MD 20742
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Teng Li
University of Maryland,
e-mail: LiT@umd.edu
Teng Li
1
Department of Mechanical Engineering
,University of Maryland,
College Park, MD 20742
e-mail: LiT@umd.edu
1Corresponding author.
Search for other works by this author on:
Shuze Zhu
Department of Mechanical Engineering
,University of Maryland,
College Park, MD 20742
Teng Li
Department of Mechanical Engineering
,University of Maryland,
College Park, MD 20742
e-mail: LiT@umd.edu
1Corresponding author.
Manuscript received December 30, 2013; final manuscript received January 27, 2014; accepted manuscript posted February 20, 2014; published online February 20, 2014. Editor: Yonggang Huang.
J. Appl. Mech. Jun 2014, 81(6): 061008 (5 pages)
Published Online: February 20, 2014
Article history
Received:
December 30, 2013
Revision Received:
January 27, 2014
Accepted:
February 20, 2014
Citation
Zhu, S., and Li, T. (February 20, 2014). "Wrinkling Instability of Graphene on Substrate-Supported Nanoparticles." ASME. J. Appl. Mech. June 2014; 81(6): 061008. https://doi.org/10.1115/1.4026638
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