Hydrothermal Synthesis and Evaluation of the Cu2ZnSnS4 for Photovoltaic Applications
| Autor: | Pinzón,D.L. Sánchez, Cuaspud,J.A. Gómez, Vera López,E., Schmal,M. |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
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| Zdroj: | Materials Research, Volume: 24, Issue: 3, Article number: e20200290, Published: 14 MAY 2021 Materials Research v.24 n.3 2021 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
| Popis: | The research focused on the hydrothermal synthesis of a material based on a Kesterite structure of Cu2ZnSnS4 (CZTS). For this purpose, the component cations, in concentrations of 1.0 molL-1, were placed in a steel autoclave under different temperatures conditions (200, 220, 240, 260 and 280°C) for 32 h. After, the solids were calcined at 400°C for 2 h. UV-VIS results showed that materials had a strong tendency to absorb in the region of 600-800 nm, with band-gap around 1.54 eV. XRD and Raman confirmed a structure with tetragonal geometry, preferably oriented along the (112) facet, as well as low frequency vibrational and rotational modes typical of CZTS. TEM showed nanometric crystallites (≈41.6 𝑛𝑚). XPS showed the Cu2+, Sn4+, Zn2+ and S4- species in correspondence with its main oxidation states. The electrical analysis, allowed to evaluate the behavior under load conditions, suggesting a potential use these materials for photovoltaic applications. |
| Databáze: | OpenAIRE |
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