Hydrothermal Synthesis and PL Properties of Zn₂SnO₄Nanocubes

Abstract

Zn2SnO4 nanocubes have been synthesized via a simple and facile one-pot hydrothermal process.The X-ray diffraction(XRD) pattern demonstrates that the products are fine single crystals Zn2SnO4 with the inverse spinel crystal structure.The FESEM and TEM images confirm that Zn2SnO4 microcrystallines are cube-like structure with the side length of 100~400 nm.In addition,the photoluminescence(PL) spectra of Zn2SnO4 nanocubes at room temperature show a broad blue-green emission around the 380~820 nm wavelengths with a maximum center at 590 nm.The PL property of the Zn2SnO4 nanocubes can be obviously reduced by annealing at 400 ℃ for 1 h due to the improvement of the crystal quality and the reduced concentration of oxygen vacancy.