Zinc-rich/copper-poor Cu2-xZn1+xSnS4 (x = 0.2, CZTS) has been successfully produced in film and powder form using two non-aqueous solutions (of metal salts and thiourea) without the need for sulfurization during the annealing phase. A reaction route is proposed and the choices of the solvents (water, ethyleneglycol, ethanol, methanol) and of the tin source (tin chloride pentahydrate or anhydrous) discussed and justified. A pure and coarse-grained material is obtained with a mix of metal salts in methanol and thiourea in ethylene glycol. The tin pentahydrate salt seems a better alternative to the commonly used anhydrous chloride.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry
D’Angelo, R., Azanza Ricardo, C. L., Mittiga, A., Scardi, P., & Leoni, M. (2014). A water- and sulfurization-free solution route to Cu2-xZn1+xSnS4. Journal of Sol-Gel Science and Technology, 72(3), 490 - 495. https://doi.org/10.1007/s10971-014-3462-x