Characterization and Optical Properties of MnO Doped CuO-Containing Phosphate Glass as Absorption Filters
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 2018, Vol 15, Issue 0
Abstract
In order to demonstrate the intrinsic and extrinsic changes induced by MnO in the phosphate glass network, a glass system of composition 44P2O5-38ZnO-2CuO-(16-x)Na2O-xMnO (where, x = 1, 2, 3, 4, and 5 mol%) was prepared using the conventional melt quenching technique. XRD patterns confirmed the non-crystalline nature of the prepared samples. The density and molar volume as a function of MnO content were determined to characterize structure of the obtained glasses. The optical spectroscopic studies of the prepared samples were carried out over (190-1000 nm) spectral range. The prepared samples were found to behave as bandpass filters in the visible region of spectrum. The UV cutoff wavelength was shifted from 308 nm to 352 nm by increasing content of MnO which is very useful in the optical technology requirements such as ultraviolet preventing applications and the protection from UV-LASER. The optical band gap was decreased by increasing content of MnO whilst, the Urbach energy was increased. The decrease in optical band gap was attributed to the progressive increase in non-bridging oxygens (NBOs) concentration with the addition of MnO. The refractive index was found to be enhanced with the addition of MnO by the effect of increase in overall polarizability. However, the optical polarizability was found to be correlated to the chemical composition of the glass. The results reveal the role of MnO as a network modifier in the phosphate glass matrix.
Authors and Affiliations
Hytham Ahmed Abd El-Ghany
Keywords
Related Articles
- EP ID EP653449
- DOI 10.24297/jap.v15i0.7923
- Views 71
- Downloads 0
Stability of ¤-derivations on Lie C¤-algebras
In this paper, we investigate the stability and superstability problems for ¤-derivationsassociated with the generalized Jensen type functional equation on Lie C¤-algebras.
Low temperature resistivity anomalies in Pr-based nano-manganites
The low-temperature electronic transport behavior of under doped polycrystalline Pr0.8Sr0.2MnO3 (PSMO) manganite nanoparticles (down to 40 nm), have been investigated in the presence of applied external magnetic fields (...
Effect of rapid Solidification on mechanical properties of free machining lead free aluminum alloys for improved machinability
There have been very few reports describing the free machining lead free aluminum alloys containing minimal amounts of tin and indium melt spun process. Our paper describes the effect of fundamental factors on the machin...
Study of the Absorptance of Si-gratings and of arrays of SiO2-filled trenches on Si-grating substrate
The purpose of this paper is to study the radiative properties of two model structures. The first model (A-1) is a rectangular grating of silicon (Si). The second one (A-2) is obtained from A-1 by filling their trenches...
Non-Linear Abelian Scenarios and Yang-Mills Theory
We present a natural formulation for constructing Yang-Mills theories from the incorporation of non-linearities to the Maxwell's theory of electromagnetism. Our formulation is strongly based on Noether's Theorem and aims...