| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1608020 | Journal of Alloys and Compounds | 2015 | 6 Pages |
•The pre-alloying process improved the phase purity of Cu2SnS3 (CTS) thin films.•Cu6Sn5 intermediated phase reduces the formation of second phases.•This pre-alloy was proposed as an useful way toward high-efficient CTS-based solar cells.
Cu2SnS3 (CTS) thin films were synthesized by sulfurizing electroplated Cu/Sn metallic precursors. Two different sulfurization processes were compared. One sulfurized the Cu/Sn precursor directly in a tubular furnace. The other process pre-alloyed the Cu/Sn precursor before the sulfurization. The structural, morphological, compositional, optical properties of the CTS films that were prepared by different heat-treatment processes were presented. We concluded that the pre-alloying process improved the crystallinity, phase purity, and compositional homogeneity of the CTS thin films.
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