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Recently, tin selenide SnSe has attracted extensive attention for the reported excellent thermoelectric performance. By alloying with AgSbSe2, we observed that SnSe undergoes a phase transition from the orthorhombic structure to a cubic phase. The cubic SnSe exhibits some anomalous thermoelectric properties compared with common IV-VI cubic semiconductors, such as PbTe and SnTe. It is proven that cubic...
The unique micro-sized (2–10µm) Si/C composites consisting of 20nm carbon coated secondary Si were synthesized from the abundant and low cost Al–Si alloy ingot by acid etching, ball-milling and carbonization procedure. The nano-porous Si/C composites provide a capacity of 1182mAhg−1 at a current density of 50mAg−1, 952mAhg−1 at 200mAg−1, 815mAhg−1 at 500mAg−1, and maintain 86.8% of initial capacity...
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