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 s...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Trans Tech Publications
2016
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/54238/ http://irep.iium.edu.my/54238/ http://irep.iium.edu.my/54238/ http://irep.iium.edu.my/54238/7/54238-Optical%2C%20thermal%20and%20dielectric%20studies%20of%20silver-silica%20nanoparticles%20synthesized%20via%20sol-gel%20technique_SCOPUS.pdf http://irep.iium.edu.my/54238/13/54238_Optical%2C%20thermal%20and%20dielectric.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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