Andrew Fairbrother, Xavier Fontané, Dr. Victor Izquierdo-Roca, Moises Espindola-Rodriguez, Simon López-Marino, Dr. Marcel Placidi, Dr. Juan López-García, Prof. Alejandro Pérez-Rodríguez and Dr. Edgardo Saucedo Single-Step Sulfo-Selenization Method to Synthesize Cu2ZnSn(SySe1−y)4 Absorbers from Metallic Stack Precursors ChemPhysChem 14
Not an ordinary pentenary! A straightforward sulfo-selenization process for the formation of pentenary Cu2ZnSn(SySe1−y) solar-cell absorber films permits the tuning of the absorber composition from sulfur-rich to selenium-rich in a single annealing process. The resulting films, with compositions in the whole range of S/(S+Se) ratios, aim at pentenary-based solar cells of superior efficiency, which to date have been mostly limited to chalcogen-containing precursors.
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