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Nanoelectromechanical graphene switches for the multi-valued logic systems

Title
Nanoelectromechanical graphene switches for the multi-valued logic systems
Authors
Shin, Dong HoonKim, HakseongLee, Sang Wook
Ewha Authors
이상욱신동훈
SCOPUS Author ID
이상욱scopus; 신동훈scopus
Issue Date
2019
Journal Title
NANOTECHNOLOGY
ISSN
0957-4484JCR Link

1361-6528JCR Link
Citation
NANOTECHNOLOGY vol. 30, no. 36
Keywords
nanoelectromechanical systemmulti-valued logic circuitnanoelectromechanical switchquaternarygraphene
Publisher
IOP PUBLISHING LTD
Indexed
SCI; SCIE; SCOPUS WOS
Document Type
Article
Abstract
Graphene based multi-valued nanoelectromechanical switches are suggested and demonstrated. The device structure having multiple contact sites with different heights under the doubly clamped suspended beam provides multiple contacts to be formed sequentially from the taller electrode to the shorter electrode, which results in multiple logic states. Based on the finite element method simulation, we found that our device characteristics, such as turn-on and threshold voltages, are highly governed by the device design. The proof-of-concept device realized by using a newly developed 3D fabrication method based on the e-beam lithography expresses quaternary logic states successfully with a high stability in repetitive operations.
DOI
10.1088/1361-6528/ab260f
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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