title: Magnesium catalyzed growth of SiO(2) hierarchical nanostructures by a thermal evaporation process.
abstract: SiO(2) hierarchical nanostructures consisting of a wire-like main stem and lots of rod-like sub-branches have been synthesized by a magnesium catalyzed thermal evaporation process. It is indicated that magnesium plays a critical role in the synthesis of SiO(2) hierarchical nanostructures including promotion for SiO evaporation and hierarchical-like growth of SiO(2). Moreover, the photoluminescence (PL) analysis of the SiO(2) hierarchical nanostructures reveals that blue and ultraviolet (UV) emissions are detected, which are different from those of other SiO(2) nanostructures. Finally, the growth mechanism and PL emission of SiO(2) hierarchical nanostructures have been preliminarily discussed.
authors.affiliation: State Key Lab of Silicon Materials and Department of Materials and Engineering, Zhejiang University, Hangzhou 310027, People's Republic of China.
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Liu
authors.forename: Qing
authors.initials: Q
authors.lastname: Yang
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Dongsheng
authors.initials: D
authors.lastname: Li
authors.forename: Deren
authors.initials: D
authors.lastname: Yang