Taifunisyam, T. and Souad A., M. and Mohd Rafie, J. and Wan Jefrey, B. and Chin, K.M. and Chia, C.C. and Tan, J.H. (2014) Optical, thermal and dielectric studies of silver-silica nanoparticles synthesized via sol-gel technique. In: 28th Regional Conference on Solid State Science and Technology 2014 (RCSSST 2014)., 25 - 27 November 2014, Cameron Highland, Pahang, Malaysia..
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Abstract
Silver-silica nanocomposites (Ag-Si02NCs), with unique properties such as hi~hlY resonant particle plasmons, conductivity and potential applications in optics and varl°t nanoelectronics are very attractive materials for sensing probes in biotechnology. Ag-Si02J>:l ~ with various compositions were synthesized through sol-gel technique. The morphology, opuca and thermal stability of the nanocomposite were investigated and was compared with pure sol-gel t~ determine the effects of the nanoparticles. Transmission electron microscopy (TEM) confirmed tha Si02 was encapsulated Ag with mean size of 30 nm. Uv-vis spectroscopy shows that the surface plasmon resonance (SPR) peak show Ag-Si02 NCs were greatly reduce due to the Si02 particles~ The permittivity and refractive index were decreased as the composition of Ag was increased ad composition of 60% silver. The real permittivity is negative along the visible region. The tren stability of Ag-Si02NCs were increased with the increased amount of silver.
Item Type: | Conference or Workshop Item (Paper) |
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Funders: | UNSPECIFIED |
Uncontrolled Keywords: | dielectric properties, negative permittivity, refractive index, Silver Silica nanocomposite, sol-gel, various composition, thermal properties. |
Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
Divisions: | Faculty of Engineering > Department of Chemical Engineering |
Depositing User: | Mr. Mohd Safri |
Date Deposited: | 20 Jun 2016 00:56 |
Last Modified: | 20 Jun 2016 00:56 |
URI: | http://eprints.um.edu.my/id/eprint/15941 |
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