Surface plasmon response of silver nanoparticles doped silica synthesised via sol-gel route
| Autor: | N.V. Unnikrishnan, Nivas Babu Selvaraj, Jini John, K.V. Arun Kumar, T.R. Sooraj, Shedhal Anu Raj |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Surface plasmon General Physics and Astronomy Nanoparticle Infrared spectroscopy 02 engineering and technology Surfaces and Interfaces General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Silver nanoparticle 0104 chemical sciences Surfaces Coatings and Films Chemical engineering Transmission electron microscopy Fourier transform infrared spectroscopy 0210 nano-technology Plasmon Sol-gel |
| Zdroj: | Applied Surface Science. 472:40-45 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2018.05.178 |
| Popis: | The plasmonic responses of silver nanoparticles are having attention due to their potential applications in plasmonic solar cell. We successfully synthesised silver nanoparticles in silica matrices by means of hydrolytic sol–gel method. The sol-gel derived samples were effectively annealed at 400 °C, 600 °C, 800 °C and studied the plasmonic response of silver nanoparticles. The temperature and doping concentration dependence of the nanoparticles and their optical and structural response were well studied. The Fourier-transform infrared spectroscopy (FTIR) confirmed the SiO2 formation. The XRD data confirmed the crystalline nature of Ag nanoparticles and the size is calculated to be 20 nm. The Transmission Electron Microscopy (TEM) measurement confirmed the crystalline planes of silver nanoparticles and the particle size is found to be around 20 nm. |
| Databáze: | OpenAIRE |
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