One-pot solvothermal synthesis and properties of 1D NiSe and NiSe–Ni₃S₂alloyed compound nanorod arrays

Abstract

A general one-pot solvothermal route was adopted to produce well-aligned NiSe and NiSe–Ni3S2 compound nanorod arrays on an Ni substrate. Metal foil was used as nickel source, and it also favored the unidirectional diffusion of metal ions, resulting in the vertical growth of one dimensional nanostructures on the substrate. Elemental mapping showed that the NiSe–Ni3S2 composite was an alloyed nanoheterostructure, which had paramagnetic behavior. Luminescence properties at room temperature indicated that the ultraviolet luminous intensity of the alloy materials could be significantly enhanced through doping Ni3S2 into the NiSe sample.