Optical Properties of CuS Nanoparticles Embedded Polyvinyl Alcohol (PVA) Films
| Authors | L.S. Chongad1,2, Amit Jain2,3, G.S. Mukherjee4, M. Banerjee2 |
| Affiliations |
1Department of Physics, Government Arts and Science College, Ratlam, 457001 Madhya Pradesh, India 2Nanoscience and Nanotechnology Laboratory, School of Physics, Devi Ahilya University, Khandwa Road, Indore, 452001 Madhya Pradesh, India 3Department of Engineering Sciences and Humanities, Indore Institute of Science and Technology, Pithampur Road, Rau, 453331 Indore Madhya Pradesh, India 4Defence Research & Development Organization (DRDO), Metcalfe House DRDO Complex, 110054 Delhi, India |
| Е-mail | mandira_bm@rediffmail.com |
| Issue | Volume 13, Year 2021, Number 1 |
| Dates | Received 08 January 2021; revised manuscript received 10 February 2021; published online 25 February 2021 |
| Citation | L.S. Chongad, Amit Jain, G.S. Mukherjee, M. Banerjee, J. Nano- Electron. Phys. 13 No 1, 01023 (2021) |
| DOI | https://doi.org/10.21272/jnep.13(1).01023 |
| PACS Number(s) | 36.20.Kd, 78.67.Sc, 78.20.Ci, 85.40.Ls |
| Keywords | PVA (3) , CuS nanoparticles, Optical properties (22) , Refractive index (3) , Metallization. |
| Annotation |
The pristine poly(vinyl alcohol) and CuS nanoparticles with different concentrations (1 %-10 %) doped PVA films were prepared by solution casting method. The CuS nanoparticles were prepared by chemical precipitation; and XRD studies confirmed the formation of pure CuS nanoparticles with average size of 18 nm. The optical properties of pristine as well as doped PVA films were evaluated using UV-VIS-NIR spectroscopy. UV-VIS-NIR spectrum of CuS nanoparticles showed LSPR band in NIR region. The optical properties like absorption coefficient, bandgaps, high frequency refractive index, and metallization criterion have been evaluated; both the direct and indirect band gaps decreased in case of doped PVA films; and the results and the features are discussed. |
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List of References |
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