“…The field of thin film photovoltaics (PV) is booming at the moment as it is seeing remarkably fast progress in the development and optimization of new emerging semiconductor absorber materials, such as thin sulfides, 1 chalcostibites, 2 chalcogenide perovskites, 3 nitrides, 4 and antimony chalcogenides. 5,6 These materials have attracted intensive thin film PV research of late because of the high abundance of their constituent elements in the Earth’s crust and the non-toxicity of the chemical elements, which are combined with highly demanded material qualities, such as defect tolerance 6 and high chemical stability.…”