title: Site-specific nucleation and controlled growth of a vertical tellurium nanowire array for high performance field emitters.
abstract: We report the controlled growth of highly ordered and well aligned one-dimensional tellurium nanostructure arrays via a one-step catalyst-free physical vapor deposition method. The density, size and fine structures of tellurium nanowires are systematically studied and optimized. Field emission measurement was performed to display notable dependence on nanostructure morphologies. The ordered nanowire array based field emitter has a turn-on field as low as 3.27 V μm(-1) and a higher field enhancement factor of 3270. Our finding offers the possibility of controlling the growth of tellurium nanowire arrays and opens up new means for their potential applications in electronic devices and displays.
authors.affiliation: National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Safdar
authors.forename: Xueying
authors.initials: X
authors.lastname: Zhan
authors.forename: Mutong
authors.initials: M
authors.lastname: Niu
authors.forename: Misbah
authors.initials: M
authors.lastname: Mirza
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhao
authors.forename: Zhenxing
authors.initials: Z
authors.lastname: Wang
authors.forename: Jinping
authors.initials: J
authors.lastname: Zhang
authors.forename: Lianfeng
authors.initials: L
authors.lastname: Sun
authors.forename: Jun
authors.initials: J
authors.lastname: He