Low‐Cost Copper Zinc Tin Sulfide Counter Electrodes for High‐Efficiency Dye‐Sensitized Solar Cells.

Cu1.51Zn1.00Sn1.45S3.61 nanoparticles are prepared by injecting a solution of sulfur in oleylamine into a mixture of copper(II) acetylacetonate, zinc acetylacetonate, tin(IV) bis(acetylacetonate) dibromide, and oleylamine (225 °C, 1 h).