The Influence of Silver Nanoparticles on Optical Properties of Samarium Doped Magnesium Tellurite Glasses. (2015)

• Record Type: Journal Article
• Authors: Sahar, M.R.; Yusoff, Nurulhuda Mohammad
• Is Part Of: Materials today. Volume 2:Number 10(2015)Part B
• Page Start: 5117
• Page End: 5121
• Publication Date: 2015
• Subjects: Silver nanoparticles -- Magnesium tellurite glasses -- Samarium doping; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2015.11.007
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Control amount of noble metallic nanoparticles embedding in tellurite glass and its influence on optical properties is important for device perspectives. Silver (Ag) nanoparticles (NPs) are incorporated in Sm 3+ doped tellurite glass having a composition of (89-x)TeO2 -10MgO-1Sm2 O3 -xAgCl where (0.0≤x≤0.8) mol% by melt quenching method. The amorphous nature of the glass is determined by x-ray diffraction while the existence of Ag NPs is confirmed by the TEM image. The optical band gap and Urbach energy are determined using the UV-Vis spectroscopy. It is found that the direct optical band gap is around (3.16-3.41) eV, while indirect optical band gap is around (2.81-3.01) eV. The Urbach energy is shown around (0.18-0.24) eV. All the results will be discussed with respect to the Ag NPs content.