Washboard belt-like zinc selenide(ZnSe)nanostructures are successfully prepared by a simple chemical vapor deposition(CVD)technology without catalyst.The phase compositions,morphologies and optical properties of the n...Washboard belt-like zinc selenide(ZnSe)nanostructures are successfully prepared by a simple chemical vapor deposition(CVD)technology without catalyst.The phase compositions,morphologies and optical properties of the nanostructures are investigated by X-ray diffraction(XRD),scanning electron microscopy(SEM),high-resolution transmission electron microscopy(HRTEM)and photoluminescence(PL)spectroscop,respectively.A vapor-liquid mechanism is proposed for the formation of ZnSe belt-like structures.Strong PL from the ZnSe nanostructure can be tuned from 462 nm to 440 nm with temperature varying from 1000°C to 1200°C,and it is demonstrated that the washboard belt-like ZnSe nanostructures have potential applications in optical and sensory nanotechnology.This method is expected to be applied to the synthesis of other II-VI groups or other group’s semiconducting materials.展开更多
基金supported by the Xinjiang Science and Technology Project(No.2012211B01)
文摘Washboard belt-like zinc selenide(ZnSe)nanostructures are successfully prepared by a simple chemical vapor deposition(CVD)technology without catalyst.The phase compositions,morphologies and optical properties of the nanostructures are investigated by X-ray diffraction(XRD),scanning electron microscopy(SEM),high-resolution transmission electron microscopy(HRTEM)and photoluminescence(PL)spectroscop,respectively.A vapor-liquid mechanism is proposed for the formation of ZnSe belt-like structures.Strong PL from the ZnSe nanostructure can be tuned from 462 nm to 440 nm with temperature varying from 1000°C to 1200°C,and it is demonstrated that the washboard belt-like ZnSe nanostructures have potential applications in optical and sensory nanotechnology.This method is expected to be applied to the synthesis of other II-VI groups or other group’s semiconducting materials.
