Abstract
Sn-doped Bi2O2Se ceramics have been synthesized by spark plasma sintering process. The phase compositional and microstructural analysis indicated that Bi2O2Se exhibited a layered structure with a tetragonal phase. The electrical conductivity was increased by Sn-doping many times with a little effect on the thermal conductivity., The highest ZT value of ∼0.20 has been achieved at 773 K from Bi1.9Sn0.1O2Se sample, which is about four times larger than that of the pure Bi2O2Se. Our results suggest that Bi2O2Se can be a promising candidate for n-type thermoelectric ceramic.
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Zhan, B., Butt, S., Liu, Y. et al. High-temperature thermoelectric behaviors of Sn-doped n-type Bi2O2Se ceramics. J Electroceram 34, 175–179 (2015). https://doi.org/10.1007/s10832-014-9969-2
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DOI: https://doi.org/10.1007/s10832-014-9969-2