Facile preparation of reduced graphene oxide wrapped copper oxide thin film solar selective absorbers
| Autor: | S. Karthick Kumar, M. Kandasamy, Sepperumal Murugesan, S. Suresh, N. Murugesan |
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| Rok vydání: | 2020 |
| Předmět: |
Copper oxide
Materials science genetic structures Scanning electron microscope Oxide chemistry.chemical_element 02 engineering and technology 01 natural sciences law.invention symbols.namesake chemistry.chemical_compound X-ray photoelectron spectroscopy law 0103 physical sciences Materials Chemistry Thin film 010302 applied physics Graphene Process Chemistry and Technology 021001 nanoscience & nanotechnology Copper eye diseases Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry Chemical engineering Ceramics and Composites symbols sense organs 0210 nano-technology Raman spectroscopy |
| Zdroj: | Ceramics International. 46:27897-27902 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.07.143 |
| Popis: | Reduced graphene oxide wrapped copper oxide (rGO-CuO) thin films were prepared by room temperature chemical oxidation of copper substrates and subsequent dip-coating technique. The structural, morphological and chemical analysis of the as-prepared thin films were performed by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDAX), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The XRD and Raman studies revealed phase pure and high crystalline nature of the thin films. The XPS analysis confirmed the presence of rGO in the rGO-CuO thin films. The influence of alkaline conditions on the morphology of the thin films was investigated. The optical properties of pure CuO and rGO-CuO thin films were evaluated. Factors responsible for the observed high solar selectivity of the rGO-CuO thin films are discussed. |
| Databáze: | OpenAIRE |
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