A novel 1D/1D nanocomposite-based photodetector is successfully fabricated from high-crystalline ZnS/ZnO biaxial nanobelts for the first time. Optimized performance of the ZnS/ZnO nanobelt photodetector is much better than that of pure ZnS or ZnO nanostructures, with a wide-range UV-A light photoresponse, high sensitivity, and very fast response speed.
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An optimized ultraviolet-A light photodetector with wide-range photoresponse based on ZnS/ZnO biaxial nanobelt.
Adv Mater
May 2012
Department of Materials Science, Fudan University, Shanghai 200433, PR China.
A novel 1D/1D nanocomposite-based photodetector is successfully fabricated from high-crystalline ZnS/ZnO biaxial nanobelts for the first time. Optimized performance of the ZnS/ZnO nanobelt photodetector is much better than that of pure ZnS or ZnO nanostructures, with a wide-range UV-A light photoresponse, high sensitivity, and very fast response speed.
View Article and Find Full Text PDFStructure and cathodoluminescence of individual ZnS/ZnO biaxial nanobelt heterostructures.
Nano Lett
September 2008
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.
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.
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