A-Z
- A
- B
- C
- D
- E
- F
- G
- H
- I
- J
- K
- L
- M
- N
- O
- P
- Q
- R
- S
- T
- U
- V
- W
- X
- Y
- Z
- 0-9
Classification
Publication

- Full text
- Title
- Author
- ISBN/ISSN
- Publisher
AdvancedSearch
- AdvancedSearch
- Search help

Thermopower of Semiconducting Glasses in the V₂O₅-P₂O₅ and V₂O₅-CdS-P₂O₅ Systems

Author： Khairnar C. Yawale S. Pakade S.

Publisher： MAIK Nauka/Interperiodica

ISSN： 1087-6596

Source： Glass Physics and Chemistry, Vol.31, Iss.5, 2005-09, pp. : 611-620

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Vanadium phosphate and cadmium sulfide-doped vanadium phosphate glasses containing up to 50–80 mol % V₂O₅ are prepared. The thermopower of these glasses is measured in the temperature range 303–473 K. The activation energies are determined from the linear dependences of the thermopower S and the logarithm of the conductivity logσ on the reciprocal of the temperature 1/T. It is demonstrated that the activation energies obtained by two methods differ from each other. The difference between the activation energies is referred to as the hopping energy ∆. The possibility of an Anderson metal-insulator transition occurring is examined. It is revealed that similar transitions are not observed in the glasses under investigation. The data obtained are analyzed within the small-polaron hopping model describing the electron conduction. It is established that hopping conduction proceeds over localized states in the tail of the density of states. All the glasses are characterized by electron conduction.

Related content

Spectroscopic studies of the structure of Na₂O-CdO-PbO-P₂O₅ metaphosphate glasses

By El Hezzat M. Et-tabirou M. Montagne L. Palavit G. Mazzah A. Dhamelincourt P.

Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B, Vol. 44, Iss. 5, 2003-10 ,pp. : 345-348 (4)

Society of Glass Technology

Access to resources Recommend Favorite

Crystallization and microstructure of Na₂O–CaO–Nb₂O₅–P₂O₅ glasses

By Stunda-Zujeva Agnese Krieke Guna Jakovlevs Dmitrijs Berzina-Cimdina Liga

Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B, Vol. 53, Iss. 3, 2012-06 ,pp. : 93-98 (6)

Society of Glass Technology

Access to resources Recommend Favorite

Dissolution behaviour of SnO–P₂O₅ and SnO–P₂O₅–B₂O₃ glasses in water

By Takebe Hiromichi Kobatake Takuya Saitoh Akira

Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B, Vol. 54, Iss. 4, 2013-08 ,pp. : 182-186 (5)

Society of Glass Technology

Access to resources Recommend Favorite

Glasses and glass ceramics in the system P₂O₅–B₂O₃–Ag₂O

By Jivov B. T. Dimitriev Y. B. Kashchieva E. P. Petkov C. T.

Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B, Vol. 41, Iss. 6, 2000-12 ,pp. : 352-354 (3)

Society of Glass Technology

Access to resources Recommend Favorite

Effect of V₂O₅ additions on the crystallisation of sodium silicate glasses

By Mehdikhani Behzad Mirhadi Bahman

Glass Technology - European Journal of Glass Science and Technology Part A, Vol. 53, Iss. 4, 2012-08 ,pp. : 146-149 (4)

Society of Glass Technology

Access to resources Recommend Favorite