Impact on Structural and Optical Properties of CZTS Thin Films with Solvents and Ge Incorporation
| Autor: | Mohd. Shkir, Tanka Raj Rana, JunHo Kim, Abhay Kumar Singh, Tien-Chien Jen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Article Subject Band gap TJ807-830 02 engineering and technology Crystal structure 010402 general chemistry 01 natural sciences Polyvinyl alcohol Renewable energy sources Physical property chemistry.chemical_compound symbols.namesake General Materials Science CZTS Thin film Diffractometer Renewable Energy Sustainability and the Environment General Chemistry 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 0104 chemical sciences chemistry Chemical engineering symbols 0210 nano-technology Raman spectroscopy |
| Zdroj: | International Journal of Photoenergy, Vol 2021 (2021) |
| ISSN: | 1687-529X 1110-662X |
| DOI: | 10.1155/2021/1508469 |
| Popis: | This report demonstrates nontoxic colloidal nitrate route CZTS (Cu2ZnSnS4) synthesis at room temperature, along with their band grading due to incorporation of Ge as cost of Sn (3%). The parent CZTS, CZGTS (Cu2ZnGeSnS4), and their polyvinyl alcohol (PVA), dimethyl sulfoxide (DMSO) solvent containing solutions doctor blade-coated thin film structural and optical properties are discussed. Their sulfurized thin films thickness have been achieved ±2 μ. It has noticed that addition of Ge in CZTS alloy affects the grain sizes, crystallographic structure, Raman spectral peak shift toward the higher wave number side. The addition of PVA and DMSO is also substantially contributed in their physical property modification by demonstrating the gradual improvement in grain sizes and compactness. Moreover, the gradual changes have also appeared in their X-ray diffractometer (XRD) and Raman spectroscopic results. The optical energy band gaps of the CZTS, CZGTS, and their PVA, DMSO mixed alloyed thin films are obtained in between 1.27 eV to 1.57 eV and 1.58 eV to 1.83 eV. |
| Databáze: | OpenAIRE |
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