Open AccessEffect of density on the thermoelectric properties of the filled skutterudite compound La0.75Fe3CoSb12
Author(s) -
Yang Lei,
Lanting Zhang,
Jiansheng Wu
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.537
Subject(s) - skutterudite , materials science , electrical resistivity and conductivity , seebeck coefficient , thermoelectric effect , condensed matter physics , thermal conduction , thermal conductivity , density of states , thermoelectric materials , charge carrier density , composite material , doping , thermodynamics , optoelectronics , physics , quantum mechanics
The effect of density on the thermoelectric properties of the filled skutterudite compound La0.75Fe3CoSb12 was investigated. The La0.75Fe3CoSb12 showed p-type conduction. The mobility increased with an increase in density. The electrical resistivity increased and the thermal conductivity decreased with decreasing density due to the pores scattering. The Seebeck coefficient is independent of density. The portion of electrical resistivity increase is consistent with that of the thermal conductivity reduction. The value of ZT of the specimen with low density is compared to that of specimen with high density. The value of ZT does not depend on density.