期刊
IEEE ELECTRON DEVICE LETTERS
卷 31, 期 9, 页码 906-908出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2010.2052017
关键词
Ambipolar conduction; chemical vapor deposition (CVD) graphene; graphene field-effect transistors (GFET); mixers
资金
- ONR GATE MURI
- MIT/Army Institute for Soldier Nanotechnologies (ISN)
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0845358] Funding Source: National Science Foundation
The combination of the unique properties of graphene with new device concepts and nanotechnology can overcome some of the main limitations of traditional electronics in terms of maximum frequency, linearity, and power dissipation. In this letter, we demonstrate the use of the ambipolar-transport properties of graphene for the fabrication of a new kind of RF mixer device. Due to the symmetrical ambipolar conduction in graphene, graphene-based mixers can effectively suppress odd-order intermodulations and lead to lower spurious emissions in the circuit. The mixer operation was demonstrated at a frequency of 10 MHz using graphene grown by chemical vapor deposition on a Ni film and then transferred to an insulating substrate. The maximum operating frequency was limited by the device geometry and the measurement setup, and a high-quality factor was observed with a third-order intercept point of +13.8 dBm.
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