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2016 | 129 | 1a | A-94-A-96
Article title

Correlation between the Band-Gap Energy and the Electrical Conductivity in MPr₂W₂O₁₀ Tungstates (Where M = Cd, Co, Mn)

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EN
Abstracts
EN
The values of the direct allowed energy gap determined from the UV-vis-NIR measurements and Kubelka-Munk transformation decrease from 3.38 via 2.70 to 2.42 eV for MPr₂W₂O₁₀ in the sequence M = Cd, Co, Mn, while the values of the activation energy increase from 0.11 via 0.44 to 0.47 eV in the same sequence. In other words, the higher the activation energy, the smaller the energy gap. Because the energy gap is typical for insulators, so electron transport phenomena are considered under the Poole-Frenkel effect and small-polaron mechanism.
Keywords
EN
Contributors
author
  • University of Silesia, Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland
  • West Pomeranian University of Technology, Department of Inorganic and Analytical Chemistry, al. Piastów 42, 71-065 Szczecin, Poland
  • West Pomeranian University of Technology, Department of Inorganic and Analytical Chemistry, al. Piastów 42, 71-065 Szczecin, Poland
author
  • University of Silesia, Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • University of Silesia, Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • University of Silesia, Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv129n1a21kz
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