| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1606307 | Journal of Alloys and Compounds | 2016 | 8 Pages |
•Mechanochemical synthesis of phase pure kesterite powder.•Determination of the cation distribution using neutron diffraction.•Partial disorder for copper and zinc observed.
With respect to absorber materials in solar cells, Cu2ZnSnS4 (CZTS) has been a focus of interest in recent years. In this work, a new route leading to single phase CZTS powders is presented. For structural characterization X-ray and neutron powder diffraction measurements were performed. Further structural and compositional analysis of the CZTS powder was carried out by means of X-ray absorption near edge spectroscopy (XANES) and wavelength-dispersive X-ray spectroscopy (WDS). The obtained CZTS powder with an actual composition of Cu2.00(4)Zn1.02(2)Sn0.99(2)S4.00(8) adopts the kesterite-type structure. A detailed cation distribution analysis using the average neutron scattering length method revealed a partial disorder of copper and zinc on the (2c) and (2d) sites.
