Synthesis, crystal structure and transport properties of skutterudite-related CoSn1.5Se1.5

Synthesis, crystal structure and thermoelectric properties of the ternary skutterudite Fe2Pd2Sb12

“…Ternary skutterudites are materials isoelectronic to binary skutterudites, and can be prepared either by isoelectronic substitution at anionic site X by a pair of elements from 14 and 16 groups (e.g. CoGe 1.5 S 1.5 [10], CoSn 1.5 Se 1.5 [11]), or by isoelectronic substitution at the cationic site M by a pair of elements from 8 and 10 groups (e.g. Fe 0.5 Ni 0.5 Sb 3 [12], Ru 0.5 Pd 0.5 Sb 3 [13]).…”

Thermoelectric Properties of Co4Sn6Se6 Ternary Skutterudites

“…The inset picture in Fig. 2, published in our recent work, 11 depicts this dependence from liquid N 2 temperatures. One can observe that the exponential increase at low temperatures represents the activation of electrons from the valence band into some acceptor levels, leaving free holes in the valence band.…”

“…As mentioned in our latest work, 11 the Co 4 Sn 6 Se 6 phase is the first ternary compound in the Co-Sn-Se system, where 13 phases were known before. Based upon our results, this compound is isostructural with Ir 4 Sn 6 Te 6, 13 Co 4 Sn 6 Te 6 14 and Co 4 Ge 6 Te 6.…”

“…In our latest article 11 we reported on a study dealing with another member of this group--Co 4 Sn 6 Se 6 . Although this phase was mentioned as a possible candidate for thermoelectric studies in Fleurial's list 5 of prospective ternary skutterudites, the comprehensive thermoelectric study, including doping, was not available in the literature.…”

“…The first information on the thermoelectric properties of the compound and the result of crystal structure analysis were reported in our paper. 11 According to our work, 11 (space group R 3) and can be viewed as a ternary ordered variant of the skutterudite structure. The aim of this article is to describe the influence of the substitution of some of the Co atoms with Ni and Ru atoms, respectively, on the thermoelectric properties of the title compound.…”