Effects of the growth temperature on the properties of spray deposited CuInS2 thin films for photovoltaic applications
| Autor: | M. Baneto, Kossi Napo, K. Jondo, Yendoubé Lare, Ciprian Mihoreanu, Alexandru Enesca, Anca Duta |
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| Rok vydání: | 2015 |
| Předmět: |
Photocurrent
Materials science Band gap Process Chemistry and Technology Analytical chemistry Substrate (electronics) Surfaces Coatings and Films Electronic Optical and Magnetic Materials Absorbance Crystallinity Tetragonal crystal system Materials Chemistry Ceramics and Composites Thin film Stoichiometry |
| Zdroj: | Ceramics International. 41:4742-4749 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2014.12.023 |
| Popis: | CuInS 2 absorber thin films were prepared by spray pyrolysis deposition at different substrate temperatures (250 °C, 300 °C and 350 °C) using an aqueous solution of CuCl 2 , InCl 3 and SC(NH 2 ) 2 at a precursor molar ratio of Cu:In:S=1:1.25:4.5. The effect of the substrate׳s temperature on the structural, morphological, optical and electrical properties of CuInS 2 thin films was investigated. The X-ray diffraction patterns showed that CuInS 2 has a tetragonal structure. The results show that the films deposited at 300 °C have improved electrical conduction and photocurrent values. When increasing the substrate׳s temperature the absorbance decreases while the band gap energy increases, as a combined effect of crystallinity, morphology and deviation from stoichiometry. |
| Databáze: | OpenAIRE |
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