Graphene-based Test Platform in Potential Application for FET with Guanine as Gate Dielectric

Guanine and poly(methyl methacrylate) (PMMA) layers 60 nm thick were fabricated by physical vapor deposition and spin-coating, respectively, for potential application as bio-based field-effect transistors. A few layers of graphene on a variety of non-flexible and flexible supports were used as subst...

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Bibliographic Details
Published in:Journal of electronic materials 2015-10, Vol.44 (10), p.3481-3485
Main Authors: Williams, Adrienne D., Ouchen, Fahima, Kim, Steve S., Ngo, Yen H., Elhamri, Said, Siwecki, Arthur, Mou, Shin, Campo, Eva M., Kozlowski, Gregory, Naik, Rajesh R., Grote, James
Format: Article
Language:English
Subjects:
Biodegradation
Characterization and Evaluation of Materials
Chemistry and Materials Science
Copper
Dielectrics
Electronics and Microelectronics
Instrumentation
Materials Science
Optical and Electronic Materials
Solid State Physics
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Summary:Guanine and poly(methyl methacrylate) (PMMA) layers 60 nm thick were fabricated by physical vapor deposition and spin-coating, respectively, for potential application as bio-based field-effect transistors. A few layers of graphene on a variety of non-flexible and flexible supports were used as substrates for the guanine and PMMA layers. The interactions between these layers and graphene were studied and their effects on the electrical properties of the graphene were monitored over an extended period of time. Guanine had no noticeable effects on the transport properties of graphene. The presence of PMMA reduced the charge-carrier mobility of graphene by up to 42%. This combination has potential for use as a device in biosensors, environmental science, computer-processing, and graphene-based electronics.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-015-3797-2