Single-Step Sulfo-Selenization Method to Synthesize Cu2ZnSn(SySe1−y)4 Absorbers from Metallic Stack Precursors (pages 1836–1843)
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
Article first published online: 10 APR 2013 | DOI: 10.1002/cphc.201300157
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.