Abstract
Abstract ZnSe hierarchical nanostructures with high crystallinity were prepared via a solvothermal reaction at the water–oil interface without the help of templates or surfactants. X-ray diffraction, transmission electron microscope, absorption spectrum and photoluminescence spectrum were used to characterize the products. Meanwhile, a possible mechanism for the formation of the ZnSe hierarchical nanostructures is discussed. The experimental results indicate that the ZnSe hierarchical nanostructures adopt spherical flower-like morphology assembled from nanosheets and possess high crystallinity. The oil–water interface plays an important role in the formation of hierarchical nanostructures. Moreover, the ZnSe hierarchical nanostructures exhibit a narrow emission with full width at half maximum (FWHM) of approximate 13 nm.
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