Figure 7
From: Band Structure Engineering and Thermoelectric Properties of Charge-Compensated Filled Skutterudites

Thermopower values at different carrier concentration levels at 300 K.
The dashed line represents the general trend of thermopower taken from the literature for n-type filled skutterudites with different single fillers25. The red circle symbols are YbxGa0.2Co4Sb11.9333 (x = 0, 0.05, 0.10, 0.15, 0.20, 0.26) and the blue triangles are YbyGa0.15Co4Sb11.95 (y = 0.20, 0.25, 0.30, 0.35, 0.40) from this study. The data of Ga-CCCD samples GaδCo4Sb12-δ/3 from ref. 25 is also plotted in the figure. The solid blue line represents the data trend for all the Ga-containing charge-compensated compounds.