Thermal precipitation of silver nanoparticles and thermoluminescence in tellurite glasses

On the prospects of enhance glass based devices with silver nanoparticles: The case of Pr3+ doped tellurite-tungstate glasses

“…As one can see, there are no detectable band similar to that one shown in Figure 4, however, a broad absorption band, compatible with the SPR band may be covering all the visible and the NIR spectrum. We highlight that it is possible that AgNPs are more concentrated in the surface of the sample [35], or that the reflected light is more sensible to the absorption than the transmitted light. We have measured the absorption of all samples, including those submitted to different heat treatments and the SPR was at best seem as it shown in Figure 5.…”

Combination of nonlinear optical properties in thermally poled germanotellurite glass‐ceramics

“…Additionally, the replacement of K content by Ag content could lead to the dramatic change of microstructure at high temperature because of the complex agglomeration behavior of silver atoms. 38 Although silver was proved to be useful in enhancing bulk crystallization, and some studies showed that the appearance of Ag NPs in thermally poled glass can be useful for nonlinear optical properties; 17 its role in the crystallization process of K[Nb 1 / 3 Te 2/3 ] 2 O 4.8 as well as in the surface modification during thermal poling is still unclear. 8 The SHG signal (Ψ mode) illustrated in Figure 5A clearly proves the existence of nonlinear optical nature in germanotellurite glass, even with or without silver-oxide doping.…”

In-situ fiber drawing induced synthesis of silver-tellurium semiconductor compounds

“…Yet, we have no evidence of the formation of a metallic layer. Plasmonic band for Ag nanoparticles in silver-containing tellurite glasses appears in region centered on 480 nm for spherical particles [20,21]. Furthermore, XPS analysis (Figure 5) highlights a strong reduction of tellurium into Te 2-species.…”