title: Structure and cathodoluminescence of individual ZnS/ZnO biaxial nanobelt heterostructures.
abstract: We report on a controlled synthesis of two novel semiconducting heterostructures: heterocrystalline-ZnS/single-crystalline-ZnO biaxial nanobelts and side-to-side single-crystalline ZnS/ZnO biaxial nanobelts via a simple one-step thermal evaporation method. In the first heterostructure, a ZnS domain is composed of the heterocrystalline superlattice (3C-ZnS) N /(2H-ZnS) M [111]-[0001] with the atomically smooth interface between wurtzite and zinc blende ZnS fragments. High-spatial resolution cathodoluminescence studies on individual heterostructures for the first time reveal a new ultraviolet emission peak ( approximately 355 nm), which is not observed in separate ZnS or ZnO nanostructures. The present hererostructures are expected to become valuable not only with respect to fundamental research but also for a design of new broad-range ultraviolet nanoscale lasers and sensors.
authors.affiliation: Key Laboratory of Materials Physics, and Anhui Key Laboratory of Nanomaterials and Nanostructures, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China.
authors.forename: Jian
authors.initials: J
authors.lastname: Yan
authors.forename: Xiaosheng
authors.initials: X
authors.lastname: Fang
authors.forename: Lide
authors.initials: L
authors.lastname: Zhang
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Bando
authors.forename: Ujjal K
authors.initials: UK
authors.lastname: Gautam
authors.forename: Benjamin
authors.initials: B
authors.lastname: Dierre
authors.forename: Takashi
authors.initials: T
authors.lastname: Sekiguchi
authors.forename: Dmitri
authors.initials: D
authors.lastname: Golberg