title: Self-assembled periodical polycrystalline-ZnO/a-C nanolayers on Zn nanowire.
abstract: Zn nanowires with an epitaxial thin surface layer of zinc oxide were dispersed onto amorphous carbon films and stored at room temperature. After 1500 h, a self-organized equal-spaced zinc oxide (approximately 2 nm)/carbon (approximately 2.5 nm) multilayer structure was found to form outside the Zn nanowire, taking the place of the original ZnO surface layer. We carried a systematic study to clarify the self-formation mechanism of the periodical multilayers outside the Zn nanowire and found out that such a configuration originated from a chemical reaction between Zn and CO2 and were formed via a gas phase diffusion-interfacial chemical reaction-phase separation process.
authors.affiliation: Department of Physics, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China. liquan@phy.cuhk.edu.hk
authors.forename: Quan
authors.initials: Q
authors.lastname: Li
authors.forename: K W
authors.initials: KW
authors.lastname: Kwong
authors.forename: D
authors.initials: D
authors.lastname: Ozkaya
authors.forename: D J H
authors.initials: DJ
authors.lastname: Cockayne