3c , the n shows a decreasing trend and stabilizes at around ~8 × 10 18 cm −3 with Mo addition, and the μ is significantly enhanced from ~277 cm 2 V −1 s −1 in SnSe-0.75%Te to ~422 cm 2 V −1 s −1 in SnSe-0.75%Te-0.7%Mo.
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Crystal symmetry modification enables high-ranged in-plane thermoelectric performance in n-type SnSe crystals.
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