Influences of rapid thermal annealing on Cu2ZnSnS4 thin film fabricated by spraying approach
| Autor: | Wang Fengchao, Jing Yang, Canyun Zhang, Xiaoming Dou, Jiaqi Ju, Jinfang Kong, Xiaogai Peng, Yan Jin, Yu Sun, Jin Chen, Qinmiao Chen |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Scanning electron microscope Annealing (metallurgy) engineering.material Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry.chemical_compound Crystallinity chemistry X-ray photoelectron spectroscopy Chemical engineering 0103 physical sciences engineering CZTS Kesterite Electrical and Electronic Engineering Thin film Spectroscopy |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 32:7153-7161 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | Nowadays, Cu2ZnSnS4 is considered as a promising photoabsorption material for thin film solar cells, because of its excellent optical properties. Moreover, it features low cost and eco-friendly. In this work, the spraying approach combined with rapid thermal annealing (RTA) process was employed for the facile fabrication of CZTS thin film. The dependences of as-prepared sample properties on RTA conditions of annealing temperature and annealing time were investigated in detail via X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), ultraviolet–visible–infrared (UV–vis–IR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). As the results suggested, the sample prepared at 600 °C for 45 min featured better properties than others. The obtained sample displayed a good crystallinity with kesterite CZTS phase, an acceptable morphology, and a bandgap energy of 1.35 eV. Moreover, this sample presented a desirable Cu-poor and Zn-rich chemical composition with Cu/(Zn + Sn) = 0.86, Zn/Sn = 1.15, and S/(Cu + Zn + Sn) = 0.97, which is favorable for the high-performance photovoltaic devices. |
| Databáze: | OpenAIRE |
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