fig1

Synergistic effect of cation substitution and <i>p</i>-type anion doping to improve thermoelectric properties in Zintl phases

Figure 1. OM images for the needle/bar-shaped single-crystals of (A) Ca8YbZn4.45Cu0.05Sb9, (B) Ca8YbZn4.4Cu0.1Sb9, and (C) Ca8YbZn4.35Cu0.15Sb9. Scale bars are also provided.

Energy Materials
ISSN 2770-5900 (Online)
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