title: Small hysteresis nanocarbon-based integrated circuits on flexible and transparent plastic substrate.
abstract: We report small hysteresis integrated circuits by introducing monolayer graphene for the electrodes and a single-walled carbon nanotube network for the channel. Small hysteresis of the device originates from a defect-free graphene surface, where hysteresis was modulated by oxidation. This uniquely combined nanocarbon material device with transparent and flexible properties shows remarkable device performance; subthreshold voltage of 220 mV decade(-1), operation voltage of less than 5 V, on/off ratio of approximately 10(4), mobility of 81 cm(2) V(-1) s(-1), transparency of 83.8% including substrate, no significant transconductance changes in 1000 times of bending test, and only 36% resistance decrease at a tensile strain of 50%. Furthermore, because of the nearly Ohmic contact nature between the graphene and carbon nanotubes, this device demonstrated a contact resistance 100 times lower and a mobility 20 times higher, when compared to an Au electrode.
authors.affiliation: Sungkyunkwan Advanced Institute of Nanotechnology, Department of Energy Science, BK21 Physics Division, Center for Nanotubes and Nanostructured Composites, Sungkyunkwan University, Suwon 440-746, South Korea.
authors.forename: Woo Jong
authors.initials: WJ
authors.lastname: Yu
authors.forename: Si Young
authors.initials: SY
authors.lastname: Lee
authors.forename: Sang Hoon
authors.initials: SH
authors.lastname: Chae
authors.forename: David
authors.initials: D
authors.lastname: Perello
authors.forename: Gang Hee
authors.initials: GH
authors.lastname: Han
authors.forename: Minhee
authors.initials: M
authors.lastname: Yun
authors.forename: Young Hee
authors.initials: YH
authors.lastname: Lee