2015•Journal of the Korean Physical SocietyRequires access

Solvothermal synthesis of CZTS nanoparticles in ethanol: Preparation and characterization

Xinlong Yan, Xiaoyan Hu, Sridhar Komarneni

Abstract

In this work, a low-cost, non-toxic and convenient one-pot solvothermal route to synthesize Cu 2 ZnSnS 4 (CZTS) nanoparticles is reported. The effects of solvothermal temperature and reaction time on the structure, morphology and optical properties of the as-synthesized product were investigated by using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDX) measurements and X-ray photoelectron spectroscopy (XPS). The results showed that the crystallinity of the CZTS powders was influenced by the solvothermal temperature and reaction time. The band gap of selected CZTS samples was near the optimum value for photovoltaic solar conversion in a single-band-gap device.

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Available abstract

Key concepts: CZTS, X-ray photoelectron spectroscopy, Materials science, Crystallinity, Solvothermal synthesis, Scanning electron microscope, Transmission electron microscopy, Band gap