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Electrical Properties of Nonstoichiometric WO 3− y at Temperatures 77 to 300 K
Author(s) -
Molenda J.,
Kubik A.
Publication year - 1995
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221910220
Subject(s) - tungsten trioxide , seebeck coefficient , electrical resistivity and conductivity , tungsten , materials science , charge carrier , electron , semiconductor , metal , transition metal , oxygen , condensed matter physics , chemistry , thermal conductivity , metallurgy , optoelectronics , physics , organic chemistry , quantum mechanics , composite material , biochemistry , catalysis
Measurements of electrical conductivity, thermoelectric power, and crystallographic structure of tungsten trioxide are presented. It is found that the predominant charge carriers are electrons related to nonstoichiometry in the oxygen sublattice (WO 3− y ). At y = 0.1 the investigated material undergoes a semiconductor—metal transition of Mott type.