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- W4308927179 abstract "p-type SnSe has the ultrahigh thermoelectric ZT over 2 at 773 K, as single crystal with a significantly anisotropic structure or polycrystals. In this study, a facile route of synthesizing n-type polycrystalline SnSe, which has high and isotropic thermoelectric performance, is proposed using simple ball milling, pre-annealing and spark plasma sintering processes, in sequence. The pre-annealing process effectively changes the major carrier from hole to electron and increases the crystallinity and grain size of the SnSe powder. The addition of SnCl2 as a dopant enables the electron concentration to be controlled in the range of 1.3 × 1016 cm−3 to 1.7 × 1018 cm−3 at 300 K. As a result, a remarkable ZT of 0.84–0.86 at 773 K was achieved for n-type polycrystalline SnSe0.92 with 4 wt% SnCl2, regardless of the sintering direction." @default.
- W4308927179 created "2022-11-19" @default.
- W4308927179 creator A5056630469 @default.
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- W4308927179 date "2023-03-01" @default.
- W4308927179 modified "2023-10-18" @default.
- W4308927179 title "Synthesis of n-type SnSe polycrystals with high and isotropic thermoelectric performance" @default.
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- W4308927179 doi "https://doi.org/10.1016/j.jallcom.2022.168043" @default.
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