Thermoelectric Properties of Triple-Filled Ba x Yb y In z Co4Sb12 Skutterudites

Nanostructuring of p- and n-type skutterudites reaching figures of merit of approximately 1.3 and 1.6, respectively

“…2a. Co-content, x, vs. lattice parameter, a, for DD y (Fe 1Àx Co x ) 4 Sb 12 skutterudites, data from the literature [45,48,49,60] and selected data for the end members [23,[107][108][109][110][111]. aggregation.…”

“…Co-content, x, filling level, y R , for DD y (Fe 1Àx Co x ) 4 Sb 12 skutterudites and data from the literature[45,48,49,60].…”

In-doped multifilled n-type skutterudites with ZT= 1.8

“…A series of In-filled skutterudites of various groups prepared with various methods followed and confirmed that indium was useful as a filler. These investigations were extended to double-filled skutterudites of In with Sn [29], with Ba [3,16,[30][31][32][33][34][35][36][37], with Tl [38], with Pb [35], with Ce [6,[39][40][41][42], with Pr [27], with Nd [21,43], with Yb [7,8,16,19,[44][45][46][47][48][49], with Lu [50], and to triple filled skutterudites of In with Ba and Ce [51], with Ba and Yb [16,52], with La and Yb [47], with Ce and Yb [41,42,53] and Ga and Tl [26]. There are also attempts to improve the TE properties by doping and/or alloying e.g.…”

High thermoelectric performance of In, Yb, Ce multiple filled CoSb3 based skutterudite compounds

“…In this respect, the last couple of years have witnessed several innovative approaches being used to reduce the lattice part of the thermal conductivity of skutterudites further. Perhaps the most prospective is the nano-structuring approach where one hopes to create thermodynamically stable and finely dispersed nanometer-scale inclusions in the skutterudite matrix [20,21]. The other possibility proposed recently [22] makes use of Fe that is substituted in small quantities on the Co site.…”