Abstract
As 2(Se 1− x S x ) 3 glasses with x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0 were prepared by direct quenching from the melt solution. The structure and stochiometry of the glasses were investigated by powder X-ray diffraction, Raman spectroscopy, and electron-probe-micro-analysis (EPMA) techniques. The photodarkening effect in the As 2(Se 1− x S x ) 3 glasses were observed under the influence of laser irradiations. The energy band gaps of whole series As 2(Se 1− x S x ) 3 glasses were examined by thermoreflectance (TR) as well as transmission measurements. Compositional dependences of the energy gaps of the glass system were evaluated. The relationship of the direct band gaps of As 2(Se 1− x S x ) 3 (0 ≤ x ≤ 1) glass is determined to be E g( x) = 1.52 + 0.28 x + 0.38 x 2 eV.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
