Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5491761 | Physica B: Condensed Matter | 2017 | 16 Pages |
Abstract
The VxOy material is fabricated by alternating multilayer of V/V2O5. Two sets of VxOy are presented annealed at 300 °C and 400 °C for 20, 30 and 40 min. We have determined optical absorption spectra of the two sets by comparison between experimental and theoretical PDS amplitude signal. In fact, a variation of the bandgap energy from 2.34eV to 2.49 eV has found for both set annealed at 300 °C and 400 °C for various annealing time. The variation of bandgap energy is discussed testifying a structural and compositional change. Moreover, thermal conductivity of the set annealed at 400 °C showed a variation from 1.96 W/m K to 6.2 W/m K noting a decrease up to 2.89 W/m K for that annealed for 30 min.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
A. Khalfaoui, S. Ilahi, M. Abdel-Rahman, M.F. Zia, M. Alduraibi, B. Ilahi, N. Yacoubi,