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Accueil du site > Vie du Laboratoire > Archives > Archives 2014 "A la Une" >

25 février 2015

Electron doping and phonon scattering in Ti1+xS2 thermoelectric compounds

This work is part of our investigations on sulfide thermoelectric compounds. We report therein on the influence of non-stoichiometry in TiS2 bulk compounds on its electrical and thermal transport properties. We especially focus on the relationship between Ti self-intercalation, carrier concentration and phonon scattering through structural disorder. ZT value of 0.48 at 700K is reported for Ti1.025S2.

M. Beaumale, T. Barbier, Y. Bréard, G. Guelou, A. V. Powell P. Vaqueiro, E. Guilmeau, Acta Materialia 78 (2014) 86-92

Article paru dans ScienceDirect