Influence of Cu^{2+} and Cu^{3+} Cations on the Optical Properties of Bi_{12}SiO_{20}:Cu

• Authors: P. Petkova , S. Petkov , J. Tacheva
• Languages of publication: EN

Abstracts

EN

The absorption spectrum of Bi_{12}SiO_{20}:Cu is measured in the spectral region 0.195-2.95 eV. The validity of the Urbach rule (2.08-2.95 eV) has been also verified. The photochromic effect of these samples in far IR region is investigated. The energy level diagram of Cu^{3+} cations in Bi-octahedrons is presented.

Keywords

EN

78.20.Ci; 78.30.-j; 78.40.-q

Discipline

• 78.20.Ci: Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)
• 78.30.-j: Infrared and Raman spectra(for vibrational states in crystals and disordered systems, see 63.20.-e and 63.50.-x, respectively; for Raman spectra of superconductors, see 74.25.nd)
• 78.40.-q: Absorption and reflection spectra: visible and ultraviolet(for infrared spectra, see 78.30.-j; for optical spectra of superconductors, see 74.25.nd; for time resolved reflection spectroscopy, see 78.47.jg; for multiphoton absorption, see 79.20.Ws in impact phenomena)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 1
• Pages: 149-151

Dates

published

2012-01

Contributors

author

P. Petkova

• Shumen University "Konstantin Preslavsky", 115 Universitetska str., 9712 Shumen, Bulgaria

author

S. Petkov

• Shumen University "Konstantin Preslavsky", 115 Universitetska str., 9712 Shumen, Bulgaria

author

J. Tacheva

• Shumen University "Konstantin Preslavsky", 115 Universitetska str., 9712 Shumen, Bulgaria

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Identifiers

DOI

10.12693/APhysPolA.121.149