The post-growth effect on the properties of Cu2ZnSnS4 thin films
作者： Zeineb Seboui , Abdelaziz Gassoumi , Yvan Cuminal , Najoua Kamoun Turki
DOI: 10.1063/1.4908063
关键词: Analytical chemistry 、 Crystallinity 、 Band gap 、 Kesterite 、 Annealing (metallurgy) 、 Absorption edge 、 Raman spectroscopy 、 CZTS 、 Materials science 、 Thin film
摘要: Cu2ZnSnS4 (CZTS) thin film was deposited on glass substrate by spray pyrolysis technique using a methanolic solution. This annealed under nitrogen atmosphere for an hour at different annealing temperatures. The effect of the temperature composition, structure, morphology, electrical, and optical properties CZTS films investigated. Energy dispersive x-ray analysis showed that after process, atomic ratio values tend to their stoichiometric values. Moreover, X-ray diffraction (XRD) Raman spectroscopy revealed kesterite structure with (112) preferential orientation both as-deposited films. they exhibited improvement in crystallinity which confirmed SEM analysis. conductivity heated also important increase crystallinity. absorption edge shifted toward lower wavelengths leading band gap energy
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