Graphene field-effect transistors are integrated with solution-processed multilayer hybrid organic-inorganic self-assembled nanodielectrics (SANDs). The resulting devices exhibit low-operating voltage (2 V), negligible hysteresis, current saturation with intrinsic gain >1.0 in vacuum (pressure < 2 × 10−5 Torr), and overall improved performance compared to control devices on conventional SiO2 gate dielectrics. Statistical analysis of the field-effect mobility and residual carrier concentration demonstrate high spatial uniformity of the dielectric interfacial properties and graphene transistor characteristics over full 3 in. wafers. This work thus establishes SANDs as an effective platform for large-area, high-performance graphene electronics.
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24 February 2014
Research Article|
February 24 2014
Wafer-scale solution-derived molecular gate dielectrics for low-voltage graphene electronics
Vinod K. Sangwan;
Vinod K. Sangwan
1
Department of Materials Science and Engineering, Northwestern University
, Evanston, Illinois 60208, USA
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Deep Jariwala;
Deep Jariwala
1
Department of Materials Science and Engineering, Northwestern University
, Evanston, Illinois 60208, USA
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Ken Everaerts;
Ken Everaerts
2
Department of Chemistry, Northwestern University
, Evanston, Illinois 60208, USA
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Julian J. McMorrow;
Julian J. McMorrow
1
Department of Materials Science and Engineering, Northwestern University
, Evanston, Illinois 60208, USA
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Jianting He;
Jianting He
1
Department of Materials Science and Engineering, Northwestern University
, Evanston, Illinois 60208, USA
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Matthew Grayson;
Matthew Grayson
3
Department of Electrical Engineering and Computer Science, Northwestern University
, Evanston, Illinois 60208, USA
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Lincoln J. Lauhon;
Lincoln J. Lauhon
1
Department of Materials Science and Engineering, Northwestern University
, Evanston, Illinois 60208, USA
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Tobin J. Marks;
Tobin J. Marks
a)
1
Department of Materials Science and Engineering, Northwestern University
, Evanston, Illinois 60208, USA
2
Department of Chemistry, Northwestern University
, Evanston, Illinois 60208, USA
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Mark C. Hersam
Mark C. Hersam
a)
1
Department of Materials Science and Engineering, Northwestern University
, Evanston, Illinois 60208, USA
2
Department of Chemistry, Northwestern University
, Evanston, Illinois 60208, USA
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a)
Authors to whom correspondence should be addressed. Electronic addresses: t-marks@northwestern.edu and m-hersam@northwestern.edu
Appl. Phys. Lett. 104, 083503 (2014)
Article history
Received:
October 11 2013
Accepted:
February 07 2014
Citation
Vinod K. Sangwan, Deep Jariwala, Ken Everaerts, Julian J. McMorrow, Jianting He, Matthew Grayson, Lincoln J. Lauhon, Tobin J. Marks, Mark C. Hersam; Wafer-scale solution-derived molecular gate dielectrics for low-voltage graphene electronics. Appl. Phys. Lett. 24 February 2014; 104 (8): 083503. https://doi.org/10.1063/1.4866387
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