Enhanced optical and ragged metamaterials properties of silver silica nanocomposite thin film via sol-gel and electrophoresis deposition technique

• Main Authors: Taib, Taifunisyam, Johan, Mohd. Rafie, Basirun, Wan Jefrey
• Format: Article
• Language: English
• Published: Scientific Net 2022
• Subjects: QC Physics
• Online Access: http://irep.iium.edu.my/100646/1/100646_Enhanced%20optical%20and%20ragged.pdf; http://irep.iium.edu.my/100646/; https://www.scientific.net/JNanoR.74.11

Abstract. Various filling fractions of silver silica nanocomposites (Ag-SiO2 NC) were successfully synthesized via sol-gel technique and deposited onto indium tin oxide via electrophoretic deposition (EPD) for thin film applications. Ag-SiO2 NC was investigated using X-ray diffraction, FTIR spectroscopy, Uv-vis and transmission electron microscopy. The XRD and Uv-vis results revealed that Ag-SiO2 NC is stable with a filling fraction of 0.6 in the dielectric medium with excellent absorption peak. Spectroscopy Ellipsometry shows that the effective permittivity and refractive index obtained from this filling fraction are -0.88 and 0.90, respectively. A ragged of metamaterial properties at negative permittivity are also reported.