title: High-mobility ambipolar ZnO-graphene hybrid thin film transistors.
abstract: In order to combine advantages of ZnO thin film transistors (TFTs) with a high on-off ratio and graphene TFTs with extremely high carrier mobility, we present a facile methodology for fabricating ZnO thin film/graphene hybrid two-dimensional TFTs. Hybrid TFTs exhibited ambipolar behavior, an outstanding electron mobility of 329.7 ± 16.9 cm(2)/V·s, and a high on-off ratio of 10(5). The ambipolar behavior of the ZnO/graphene hybrid TFT with high electron mobility could be due to the superimposed density of states involving the donor states in the bandgap of ZnO thin films and the linear dispersion of monolayer graphene. We further established an applicable circuit model for understanding the improvement in carrier mobility of ZnO/graphene hybrid TFTs.
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Wooseok
authors: W
authors: Song
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Soon Yeol
authors: SY
authors: Kwon
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Sung
authors: S
authors: Myung
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Min Wook
authors: MW
authors: Jung
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Seong Jun
authors: SJ
authors: Kim
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Bok Ki
authors: BK
authors: Min
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Min-A
authors: MA
authors: Kang
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Sung Ho
authors: SH
authors: Kim
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Jongsun
authors: J
authors: Lim
authors: Thin Film Materials Research Group, Korea Research Institute of Chemical Technology (KRICT), Yuseong P. O. Box 107, Daejeon 305-600, Republic of Korea.
authors: Ki-Seok
authors: KS
authors: An