Abstract
The formation of Cu2SnS3 nanoparticles by using Cu1.8S as a copper source was investigated. X-ray diffractometry, Raman spectroscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy were carried out for characterization. Injecting sulfur oleylamine solution into copper oleylamine solution at 220°C produced a dispersion of Cu1.8S nanoparticles of ~6nm in size. Thereafter, injecting tin oleylamine solution into the Cu1.8S nanoparticle dispersion at 220°C produced gelatinous amorphous Cu2SnS3 precursor. The subsequent addition of sulfur oleylamine solution at 220°C resulted in crystalline Cu2SnS3 nanoparticles of ~8nm in size.
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