Effect of Te additions on the glass transition and crystallization kinetics of (Sb15As30Se55)100−xTex amorphous solids

Erbium concentration dependent absorbance in tellurite glass

“…The magnitude of E g obtained by us is comparable to the earlier observation on Te-based glass systems [7,8]. 2.51 0.24 The decrease in the activation energy is related to the higher electropositive character of the host material that tends to provide favorable nucleation sites for the crystallization suitable for the electrical conduction [9]. Furthermore, E u is found to be increase from 0.15 to 0.24 eV as the dopant concentration is increased.…”

Spectroscopic enhancement in nanoparticles embedded glasses

“…Figure 1(a) shows the plasmon peaks of silver NPs in the zinc tellurite glasses in the absence of Er 3+ ions. The glasses containing 0.5 mol% AgCl (E1A05H8) shows three prominent plasmon peaks at 562, 598 and 628 nm, while the sample containing 1 mol% AgCl (E0A10H8) reveals two peaks at 550 and 578 nm, respectively, after 8 hours of annealing at 350 o C. The occurrence of different plasmon peaks of the silver NPs can be attributed to the presence of non-spherical metallic NPs which oscillate in two different frequencies corresponding to their longer and shorter oscillation axis [9]. The plasmon peak is known to depend upon the refractive index as well as on the concentration of metallic NPs inside the glass host.…”

“…Surface plasmons (SPs) are the light-induced excitations of electrons on metal surfaces or metal dielectric interfaces [1]. The excitation of SPs by light is at precisely matching frequency is known as 'surface plasmon resonance' (SPR) for planar surfaces or 'localized surface plasmon resonance' (LSPR) for nanometer-sized metallic structures [2][3][4][5][6][7][8][9][10][11][12]. Stimulating the surface plasmons of NPs inside the glassy matrix is the essence of nanoglass plasmonics.…”

“…Rare earth (RE) doped tellurite glasses are known as promising materials for transmission windows, optical fibers and solid state lasers, to cite a few [6][7][8][9]. By changing the structure and the neighboring states of doping ions, the emission characteristics of lasing glass might be achieved [7].…”

“…Interestingly, enhancing the absorption and emission cross-section of rare earth doped inorganic glasses by means of embedding metallic NPs with controlled sizes is challenging [5][6][7][8][9][10][11]. The luminescence quenching in glasses is detrimental unless strategically inhibited via NPs embedment.…”