Surface Plasmon Response and Applications of Silver Nanoparticles Synthesized via Sol–Gel Route
2021
The surface plasmon resonance response of noble metallic nanoparticles is a fascinating research field in the future due to a wide range of applications. The advances in the synthesis and characterization methods of metal nanostructures open a new pathway to different fields of applications in optics, electronics, biological sensing, and detection. An accurate and precise synthesis of plasmon nanoparticles and their characteristics is one of the challenging tasks due to multiple factors. The synthesis method has a definite role in uniform nanostructure formation and repeatability. We herein summarize the method, characterization advantages, and applications of sol–gel synthesized plasmonic nanoparticles. Here we used silver nanoparticles synthesis in silica via the hydrolytic method and titanosilicate via the nonhydrolytic sol–gel method through a low-cost technique. We analyzed in detail the effect of plasmonics in phosphor materials, dielectric materials, and solar cells. For sol–gel synthesis, we used materials like titanium isopropoxide, tetraethylorthosilicate (TEOS) ethanol, and europium nitrate. For plasmonic nanoparticles, silver nitrate was used. We analyzed the optical and structural features of plasmonic nanoparticles by different techniques like absorption spectroscopy, X-ray diffraction, and transmission electron microscopy, and impedance spectroscopy.
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