Studies of Physical and Optical Behavior of Er3+/Yb3+ Co-doped Titanium Tellurite Glasses
Ramkrishna Mahto,
Ghizal Firdous Ansari,
Sukhdev Bairagi,
Ashok Kumar Sharma
Issue:
Volume 8, Issue 2, December 2022
Pages:
11-16
Received:
27 October 2022
Accepted:
10 November 2022
Published:
23 November 2022
DOI:
10.11648/j.jmpt.20220802.11
Downloads:
Views:
Abstract: The Er2O3-Yb2O3 codoped TeO2-TiO2-Na2O-glasses have batch compositions of (70-x-y) %TeO2-20%. TiO2-10% Na2O-x% Er2O3-y% Yb2O3 have been prepared successfully by using the conventional melt quench technique, where (x, y) are (0, 1, 1) and (0, 1, 2). Differential scanning calorimetry (DSC) is used to measure the glass transition temperature of synthesized samples. X-ray Diffraction studies were made on these glass samples at room temperature. The amorphous nature of the prepared glass samples was confirmed from the XRD patterns. The density of prepared glass samples was determined by using the fluid displacement method, which is based on the Archimedes principle. Other physical properties of synthesized glass sample such as molar volume (Vm), titanium ion concentration (N), Polaron radius (Rp), inter nuclear distance (Ri), molar refractivity (Rm), Oxygen Packing density (OPD) and field strength (χ) were calculated. The UV-Visible absorption characterizations of synthesized glasses with varying Er2O3/Yb2O3 doping percentages were carried out in the 400–1000 nm range. Glasses optical characteristics, including their absorption coefficient (α), refractive index, the band gap energies for both direct and indirect possible transitions and the Urbach energies (Eu) have been studied from the absorption spectra. The impact of Er2O3/Yb2O3 and effect of thickness on optical characteristic is observed.
Abstract: The Er2O3-Yb2O3 codoped TeO2-TiO2-Na2O-glasses have batch compositions of (70-x-y) %TeO2-20%. TiO2-10% Na2O-x% Er2O3-y% Yb2O3 have been prepared successfully by using the conventional melt quench technique, where (x, y) are (0, 1, 1) and (0, 1, 2). Differential scanning calorimetry (DSC) is used to measure the glass transition temperature of synthe...
Show More
