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- W4327571878 abstract "Bismuth sulfide (Bi2S3) is a promising non-tellurium candidate for thermoelectric application due to its low thermal conductivity and abundance of low-toxicity elements. In this work, Bi2S3-based materials are fabricated by combining mechanical alloying, high-pressure and high-temperature treatment, and spark plasma sintering (MA + HPHT + SPS). Cation and anion doping (copper and chlorine) are then employed to enhance the thermoelectric properties. While chlorine doping can effectively improve the electrical transport properties of Bi2S3, it results in a corresponding increase in thermal conductivity. Upon copper doping, the electrical properties show a moderate and steady improvement, which also plays a role in reducing thermal conductivity. Thus, the collaborative optimization of electrical and thermal properties is achieved, whereby a maximum zT value of 0.45 is finally obtained for the Bi2S3-0.25 mol% Cu sample at 573 K." @default.
- W4327571878 created "2023-03-17" @default.
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- W4327571878 date "2023-06-01" @default.
- W4327571878 modified "2023-09-27" @default.
- W4327571878 title "Cation and anion doping to enhance thermoelectric performance of Bi2S3" @default.
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- W4327571878 doi "https://doi.org/10.1016/j.jssc.2023.123990" @default.
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