title: Mesoporous polyhedral cages and shells formed by textured self-assembly of ZnO nanocrystals.
abstract: We report a new structure, mesoporous structured polyhedral drum and spherical cages and shells formed by textured self-assembly of ZnO nanocrystals, which are made by a novel self-assembly process during epitaxial surface oxidation. The cages/shells exhibit unique geometrical shapes, and their walls are composed of mesoporous and textured ZnO nanocrystals. The structures of the cages and shells are studied, and a growth mechanism is proposed to be a process following solidification of the Zn liquid droplets, surface oxidation, and sublimation.
authors.affiliation: School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA.
authors.forename: Pu Xian
authors.initials: PX
authors.lastname: Gao
authors.forename: Zhong Lin
authors.initials: ZL
authors.lastname: Wang