Polarizability, optical basicity and optical properties of SiO2B2O3Bi2O3TeO2 glass system

Kashif, I.; Ratep, A.; Adel, Gh.

doi:10.1007/s00339-018-1904-y

Cited by 9 publications

(1 citation statement)

References 32 publications

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“…It is seen that the obtained RL values vary with the addition of Eu2O3 mol%. The indication of the non-metallic and metallic nature of solids can be engaged by using the metallization criterion [46][47][48][49]. Additionally, Dimitrov and Komatsu [25,28,29,50] recommended the metallization criterion for most of the oxide glasses by using the Lorentz-Lorentz relation, with optical bandgap and static refractive index.…”

Section: Labt4mentioning

confidence: 99%

Investigations of structural modifications, physical and optical properties of lead boro-tellurite glasses doped with europium trioxide for possible optical switching applications

Gowda¹,

Reddy²,

Eraiah

et al. 2023

J Met Mater Miner

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This manuscript intends to the structural modifications, and physical and optical properties of a set of heavy metal alkali boro-tellurite glasses doped with Eu2O3. These glasses were produced by a conservative melt-quenching method. The existence of non-crystalline properties in the glasses was ascertained by X-ray diffraction analysis. The structural modifications were noticed by MAS-NMR spectroscopic investigation. Physical properties such as density, molar volume, oxygen packing density, average boron-boron separation, interionic distance, and polaron radius have been calculated by a suitable approach. The optical absorption studies were made through UV-visible absorption spectroscopy in the 350 nm to 800 nm wavelength range. The optical properties namely, optical energy bandgap, Urbach energy, optical basicity, electronegativity, and electric susceptibility, were also determined by using appropriate methods. The MAS-NMR spectroscopic experiments reveal that fewer BO4 units are converted to BO3 units and those NBOs are turned into bridging oxygen at a lower rate. The optical refractive index values and optical dielectric constant range from 2.241 to 2.358, and 5.0220 to 5.5601, respectively. The obtained energy band gap values (Eg(d): 3.367 eV to 3.597 eV and Eg(ind) 2.109 eV to 2.863 eV) and other significant optical parameters suggest that the investigated glasses are potential candidates for europium-doped fiber amplifier applications and possible optical switching applications.

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