FTIR and UV spectra of pentaternary borate glasses. (July 2017)

• Record Type: Journal Article
• Authors: Ali, A.A.; Rammah, Y.S.; El-Mallawany, R.; Souri, D.
• Is Part Of: Measurement. Volume 105(2017)
• Page Start: 72
• Page End: 77
• Publication Date: 2017-07
• Subjects: Borate glass -- UV -- IR spectra -- Energy gap -- Urbach's energy -- Absorption spectrum fitting (ASF); Weights and measures -- Periodicals; Measurement -- Periodicals; Measurement; Weights and measures; Periodicals; 530.8
• DOI: 10.1016/j.measurement.2017.04.010
• Languages: English
• ISSNs: 0263-2241

Abstract

Highlights: Pentaternary borate glasses were prepared. FTIR and UV spectra have been measured. Optical properties such as: E opt., Eu, n, Rm and α m were calculated. Abstract: A series of (75-x) B2 O3 -xBi2 O3 -10Na2 O-10CaO-5Al2 O3 glasses, (0 ≤ x ≤ 25 mol%) were prepared. Density and molar volume were measured. FTIR and UV spectra were recorded at 400–4000 cm −1 and 200–850 nm, respectively. Optical energy gap (E opt. ), Urbach's energy (Eu ), and refractive index (n) were calculated using absorption spectrum fitting (ASF) and derivation of absorption spectrum fitting (DASF) methods. Molar refraction (Rm ) and molecular polarizability (αm ) have been calculated according to (ASF) method.