2020
DOI: 10.1007/s10854-020-03611-4
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Preparation, structural characteristics and optical parameters of the synthesized nano-crystalline sulphur-doped Bi2Te2.85Se0.15 thermoelectric materials

Abstract: In the present work, a systematic preparation of Bi 2 Te 2.85 Se 0.15-x S x (x=0.0, 0.02, 0.04 and 0.06) compositions were carried out by solvothermal method. The materials were characterized by XRD, SEM, EDX, TEM and Raman spectroscopy.XRD, as well as TEM, to confirm the nanostructure of samples. The electrical and thermal properties were investigated in the temperature range from room temperature to 600 K. The highest power factor was 1.3 x 10 -2 mW/ K 2 m at 600 K for (x=0.06) sample. This improvement in th… Show more

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Cited by 13 publications
(1 citation statement)
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“…An alternative to the replacement of Bi2Te3 is to reduce the volume of material required to achieve the same or higher performance. For example, partial replacement of the low natural abundance of tellurium by selenium contributes strongly to a sustainable thermoelectric solution [15][16][17]. Several groups have produced ternary Bi2Te3-xSex thin films via electrodeposition [18][19][20][21][22][23][24][25], pulsed laser deposition [26], sputtering [27,28], and thermal evaporation [29][30][31].…”
Section: Introductionmentioning
confidence: 99%
“…An alternative to the replacement of Bi2Te3 is to reduce the volume of material required to achieve the same or higher performance. For example, partial replacement of the low natural abundance of tellurium by selenium contributes strongly to a sustainable thermoelectric solution [15][16][17]. Several groups have produced ternary Bi2Te3-xSex thin films via electrodeposition [18][19][20][21][22][23][24][25], pulsed laser deposition [26], sputtering [27,28], and thermal evaporation [29][30][31].…”
Section: Introductionmentioning
confidence: 99%