title: Optimized performances of tetrapod-like ZnO nanostructures for a triode structure field emission planar light source.
abstract: Tetrapod-like ZnO (T-ZnO) nanostructures were synthesized by a simple vapor phase oxidation method without any catalysts or additives. We optimized the performances of T-ZnO nanostructures by adjusting the partial pressure of Zn vapour in the total pressure of the quartz chamber and obtained T-ZnO nanostructure materials of high purity, uniform morphology and size and high aspect ratio with a low turn-on electric field of 2.75 V μm(-1), a large field enhancement factor of 3410 and good field emission stability for more than 70 hour continuous emission. Besides, based on the optimized T-ZnO, we developed metal grid mask-assisted water-based electrostatic spraying technology, and fabricated a large-scale, pollution-free, hole-shaped array T-ZnO nanostructure cathode used in a triode structure field emission planar light source. The controllable performances of the triode device were intensively investigated and the results showed that the triode device uniformly illuminated with a luminous intensity as high as 8000 cd m(-2) under the conditions of 200 V grid voltage and 3300 V anode voltage. The research in this paper will benefit the development of a high performance planar light source based on T-ZnO nanostructures.
authors.affiliation: State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Mechanics and Physics, Chinese Academy of Sciences, 3888 Dongnanhu Road, Changchun 130033, People's Republic of China. songh@ciomp.ac.cn lidb@ciomp.ac.cn.
authors.forename: Yiren
authors.initials: Y
authors.lastname: Chen
authors.forename: Liqin
authors.initials: L
authors.lastname: Hu
authors.forename: Hang
authors.initials: H
authors.lastname: Song
authors.forename: Hong
authors.initials: H
authors.lastname: Jiang
authors.forename: Dabing
authors.initials: D
authors.lastname: Li
authors.forename: Guoqing
authors.initials: G
authors.lastname: Miao
authors.forename: Zhiming
authors.initials: Z
authors.lastname: Li
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Sun
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Zhang
authors.forename: Tailiang
authors.initials: T
authors.lastname: Guo