Electrical properties of molten CuCl-Cu2Se mixtures

The electrical conductivity, σ, and the thermoelectric power, S, have been measured for molten CuCl-Cu2Se mixtures as a function of composition and temperature. The electrical conductivity of their mixtures decreases rapidly with the addition of CuCl to liquid Cu2Se. The thermoelectric power of...

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Main Authors: Tahara S., Ishida K., Ohno S., Okada T.
Format: Article
Language:English
Published: EDP Sciences 2011-05-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20111501003
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author Tahara S.
Ishida K.
Ohno S.
Okada T.
author_facet Tahara S.
Ishida K.
Ohno S.
Okada T.
author_sort Tahara S.
collection DOAJ
description The electrical conductivity, σ, and the thermoelectric power, S, have been measured for molten CuCl-Cu2Se mixtures as a function of composition and temperature. The electrical conductivity of their mixtures decreases rapidly with the addition of CuCl to liquid Cu2Se. The thermoelectric power of molten CuCl-Cu2Se mixtures shows a steady increase with increasing the composition of CuCl. The experimental results suggest that the dominant transport process in the molten CuCl-Cu2Se mixtures changes from electronic to ionic conduction. The composition dependence of σ and S was analyzed by using the fundamental equation of electrical current densities due to the electrons and the ions. According to this analysis, the conductivity gap increases gradually on the addition of CuCl to liquid Cu2Se and the conductivity gap is about 0.68 eV for molten (CuCl)0.3(Cu2Se)0.7 mixture.
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spelling doaj.art-c6b0a0f2ab774e05901ca840b10cf2c62022-12-21T21:03:55ZengEDP SciencesEPJ Web of Conferences2100-014X2011-05-01150100310.1051/epjconf/20111501003Electrical properties of molten CuCl-Cu2Se mixturesTahara S.Ishida K.Ohno S.Okada T.The electrical conductivity, σ, and the thermoelectric power, S, have been measured for molten CuCl-Cu2Se mixtures as a function of composition and temperature. The electrical conductivity of their mixtures decreases rapidly with the addition of CuCl to liquid Cu2Se. The thermoelectric power of molten CuCl-Cu2Se mixtures shows a steady increase with increasing the composition of CuCl. The experimental results suggest that the dominant transport process in the molten CuCl-Cu2Se mixtures changes from electronic to ionic conduction. The composition dependence of σ and S was analyzed by using the fundamental equation of electrical current densities due to the electrons and the ions. According to this analysis, the conductivity gap increases gradually on the addition of CuCl to liquid Cu2Se and the conductivity gap is about 0.68 eV for molten (CuCl)0.3(Cu2Se)0.7 mixture.http://dx.doi.org/10.1051/epjconf/20111501003
spellingShingle Tahara S.
Ishida K.
Ohno S.
Okada T.
Electrical properties of molten CuCl-Cu2Se mixtures
EPJ Web of Conferences
title Electrical properties of molten CuCl-Cu2Se mixtures
title_full Electrical properties of molten CuCl-Cu2Se mixtures
title_fullStr Electrical properties of molten CuCl-Cu2Se mixtures
title_full_unstemmed Electrical properties of molten CuCl-Cu2Se mixtures
title_short Electrical properties of molten CuCl-Cu2Se mixtures
title_sort electrical properties of molten cucl cu2se mixtures
url http://dx.doi.org/10.1051/epjconf/20111501003
work_keys_str_mv AT taharas electricalpropertiesofmoltencuclcu2semixtures
AT ishidak electricalpropertiesofmoltencuclcu2semixtures
AT ohnos electricalpropertiesofmoltencuclcu2semixtures
AT okadat electricalpropertiesofmoltencuclcu2semixtures