Document Type

Article

Peer Reviewed

1

Publication Date

1-1-2013

Journal/Book/Conference Title

Nanoscale Research Letters

DOI of Published Version

10.1186/1556-276X-8-476

Abstract

We report the use of bilayer graphene as an atomically smooth contact for nanoscale devices. A two-terminal bucky-ball (C60) based molecular memory is fabricated with bilayer graphene as a contact on the polycrystalline nickel electrode. Graphene provides an atomically smooth covering over an otherwise rough metal surface. The use of graphene additionally prohibits the electromigration of nickel into the C60 layer. The devices exhibit a low-resistance state in the first sweep cycle and irreversibly switch to a high-resistance state at 0.8 to 1.2 V bias. In the subsequent cycles, the devices retain the high-resistance state, thus making it write-once read-many memory.

Keywords

OAfund, Graphene, Contact, Molecular memory, Write-once read-many, Bucky-ball

Journal Article Version

Version of Record

Published Article/Book Citation

Nanoscale Research Letters 2013, 8:476 doi: 10.1186/1556-276X-8-476

Rights

Copyright: © 2013 Umair et al.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

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URL

https://ir.uiowa.edu/ece_pubs/3