Dy3+ doped tellurite glasses for solid-state lighting: An investigation through physical, thermal, structural and optical spectroscopy studies

Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

“…Figure 7 presents a plot of bands position and their integral intensity (area under the curve in %) for deconvoluted TP0.25ErF 3 , TP0.75ErF 3 , and TP1.25ErF 3 spectra. The parameters of deconvoluted spectra and bands assignment to the appropriate vibrations are shown in Table 2 and Table 3, respectively [68,69,70,71,72,73,74,75,76,77].…”

“…In the FTIR spectra of phosphate glasses, there are bands associated with Q 3 –Q 0 groups (where Q is the number of bridging bonds) [72,73,74,75,76,77]. B and H at ~870 cm −1 relates to the asymmetric stretching vibrations of Q 1 units [72,73]. B and I at ~920 cm −1 is ascribed to the stretching vibrations of P–O–P linked with metaphosphate chain and P–F groups in Q 2 units [74,75].…”

An Evaluation of the Shielding Effectiveness of Tellurite Glass with Composition 85TeO2-5Nb2O5-5ZnO-5Ag2O for Diagnostic Radiology Application

“…Table1 shows the density, molar weight (MW) and the chemical compositions of the prepared sample. The average molar weight of mixturesM can be calculated using mole by fractions xi and molar masses Mi of the constituent elements of the component and their [28]:…”

“…where V is the molar volume of the glass materials, x is a molar fraction, n is the number of oxygen atoms in each oxide. The molar refraction of R m can be calculated using the following equation [28]:…”

“…Due to the toxicity, high cost, and heavy weight of lead and lead glass materials several studies were conducted to develop alternative materials that replace lead such as tellurite-base glasses, phosphate-based materials, metal alloy, polymers [15][16][17][18][19][20][21][22][23][24][25][26][27][28]. These studies showed a good shielding performance in terms of high shielding efficiency without loss of transparency, good physical properties, thermal stability and good optical properties.…”