Graphene radio frequency receiver integrated circuit.
Graphene has attracted much interest as a future channel material in radio frequency electronics because of its superior electrical properties. Fabrication of a graphene integrated circuit without significantly degrading transistor performance has proven to be challenging, posing one of the major bottlenecks to compete with existing technologies. Here we present a fabrication method fully preserving graphene transistor quality, demonstrated with the implementation of a high-performance three-stage graphene integrated circuit. The circuit operates as a radio frequency receiver performing signal amplification, filtering and downconversion mixing. All circuit components are integrated into 0.6 mm(2) area and fabricated on 200 mm silicon wafers, showing the unprecedented graphene circuit complexity and silicon complementary metal-oxide-semiconductor process compatibility. The demonstrated circuit performance allow us to use graphene integrated circuit to perform practical wireless communication functions, receiving and restoring digital text transmitted on a 4.3-GHz carrier signal.
IBM T. J. Watson Research Center, 1101 Kitchawan Rd., Yorktown Heights, New York 10598, USA.
Shu-Jen
SJ
Han
IBM T. J. Watson Research Center, 1101 Kitchawan Rd., Yorktown Heights, New York 10598, USA.
Alberto Valdes
AV
Garcia
IBM T. J. Watson Research Center, 1101 Kitchawan Rd., Yorktown Heights, New York 10598, USA.
Satoshi
S
Oida
IBM T. J. Watson Research Center, 1101 Kitchawan Rd., Yorktown Heights, New York 10598, USA.
Keith A
KA
Jenkins
IBM T. J. Watson Research Center, 1101 Kitchawan Rd., Yorktown Heights, New York 10598, USA.
Wilfried
W
Haensch