Single-crystalline monolayer and multilayer graphene nano switches

Journal Article · Mon Mar 17 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4868869· OSTI ID:22257710

Li, Peng; Cui, Tianhong ^[1]; Jing, Gaoshan ^[1]; Zhang, Bo; Sando, Shota ^[2]

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1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084 (China)
2. Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

Growth of monolayer, bi-layer, and tri-layer single-crystalline graphene (SCG) using chemical vapor deposition method is reported. SCG's mechanical properties and single-crystalline nature were characterized and verified by atomic force microscope and Raman spectroscopy. Electro-mechanical switches based on mono- and bi-layer SCG were fabricated, and the superb properties of SCG enable the switches to operate at pull-in voltage as low as 1 V, and high switching speed about 100 ns. These devices exhibit lifetime without a breakdown of over 5000 cycles, far more durable than any other graphene nanoelectromechanical system switches reported.

• OSTI ID: 22257710
• Journal Information: Applied Physics Letters, Vol. 104, Issue 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMIC FORCE MICROSCOPY
CHEMICAL VAPOR DEPOSITION
CRYSTAL GROWTH
GRAPHENE
MECHANICAL PROPERTIES
MONOCRYSTALS
RAMAN SPECTROSCOPY
SWITCHES