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Enhanced N-Type Bismuth-Telluride-Based Thermoelectric Fibers via Thermal Drawing and Bridgman Annealing

Year: 2022
Type: article
Abstract: N-type bismuth telluride (Bi2Te3) based thermoelectric (TE) fibers were fabricated by thermal drawing and Bridgman annealing, and the influence of Bridgman annealing on the TE properties of n-type Bi2Te3-based TE fibers was studied. The Bridgman annealing enhanced the electrical conductivity and Seebeck coefficient because of increasing crystalline orientation and decreasing detrimental elemental enrichment. The TE performance of n-type Bi2Te3-based TE fibers was improved significantly by enhancing the power factor. Hence the power factor increased from 0.14 to 0.93 mW/mK2, and the figure-of-merit value is from 0.11 to 0.43 at ~300 K, respectively.
Source: Materials
DOI: 10.3390/ma15155331
Authors: Min Sun, Pengyu Zhang, Qingmin Li, Guowu Tang, Ting Zhang, Dongdan Chen, Qi Qian
Institutions: State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, China Electronics Technology Group Corporation, Guangdong University of Technology, Chinese Academy of Sciences, Institute of Engineering Thermophysics
Language: English
Open Access status: gold
Estimated APC paid: $2,408
Awards: G1054835076, G1095545404, G2786750377, G3521802582, G3575085177, G4836290048, G5645455194, G6118729864, G691905993, G8065262597
OpenAlex ID: W4289711352
FWCI: 0.397
Cites: 29
Cited by: 8
Related to: 10