Optical, thermal and dielectric studies of silver silica nanoparticles synthesized via sol gel technique
Silver-silica nanocomposites (Ag-SiO2NCs), with unique properties such as highly resonant particle plasmons, conductivity and potential applications in optics and various nanoelectronics are very attractive materials for sensing probes in biotechnology. Ag-SiO2NCs with various compositions were synt...
| Main Authors: | , , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English English |
| Published: |
Trans Tech Publications Ltd
2016
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/65647/ http://irep.iium.edu.my/65647/ http://irep.iium.edu.my/65647/ http://irep.iium.edu.my/65647/7/65647%20OPTICAL%2C%20THERMAL%20AND%20DIELECTRIC%20STUDIES.pdf http://irep.iium.edu.my/65647/8/65647%20Optical%2C%20thermal%20and%20dielectric%20studies%20of%20silver-silica%20nanoparticles%20synthesized%20SCOPUS.pdf |
| Summary: | Silver-silica nanocomposites (Ag-SiO2NCs), with unique properties such as highly resonant particle plasmons, conductivity and potential applications in optics and various nanoelectronics are very attractive materials for sensing probes in biotechnology. Ag-SiO2NCs with various compositions were synthesized through sol-gel technique. The morphology, optical and thermal stability of the nanocomposite were investigated and was compared with pure sol-gel to determine the effects of the nanoparticles. Transmission electron microscopy (TEM) confirmed that
SiO2 was encapsulated Ag with mean size of 30 nm. Uv-vis spectroscopy shows that the surface plasmon resonance (SPR) peak show Ag-SiO2 NCs were greatly reduce due to the SiO2 particles. The permittivity and refractive index were decreased as the composition of Ag was increased at
composition of 60% silver. The real permittivity is negative along the visible region. The trend stability of Ag-SiO2NCs were increased with the increased amount of silver. |
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