title: Aloetic-shaped SiC nanowires: synthesis and field electron emission properties.
abstract: Novel ordered aloetic-shaped SiC nanowires were synthesized on a Si (100) substrate by reacting methane with silicon dioxide using iron as a catalyst. Their structure and chemical composition were studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The wires have a tapered aloetic structure with a top diameter about 50-80 nm and a length about 10 microm. The field emission properties of the aloetic nanowires were investigated. A stable emission with current density of 0.525 mA/cm2 at an applied electric field of 2.2 V/microm and a low turn-on electric fields of 1.4 V/microm were observed. The excellent field emission properties indicate that the aloetic-shaped SiC nanowires may have potential applications in flat panel displays and electron field-emitting devices.
authors.affiliation: Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, PR China.
authors.forename: Lianzhen
authors.initials: L
authors.lastname: Cao
authors.forename: Hong
authors.initials: H
authors.lastname: Jiang
authors.forename: Hang
authors.initials: H
authors.lastname: Song
authors.forename: Zhiming
authors.initials: Z
authors.lastname: Li
authors.forename: Xia
authors.initials: X
authors.lastname: Liu
authors.forename: Wanguo
authors.initials: W
authors.lastname: Guo
authors.forename: Dawei
authors.initials: D
authors.lastname: Yan
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Sun
authors.forename: Haifeng
authors.initials: H
authors.lastname: Zhao
authors.forename: Guoqing
authors.initials: G
authors.lastname: Miao
authors.forename: Dabing
authors.initials: D
authors.lastname: Li