Screen printed flexible Bi2Te3-Sb2Te3 based thermoelectric generator

13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Cao, Zhuo^1 ; Koukharenko, E.^1 ; Tudor, M.J.^1 ; Torah, R.N.^1 ; Beeby, S.P.^1

Electronics and Electrical Engineering Group, Electronics and Computer Science, University of Southampton, Southampton, SO17 1BJ, United Kingdom^1

关键词: Cured materials;    Low costs;    Low-temperature materials;    Peak output power;    Screen printing technology;    Screen-printed;    Temperature differences;    Thermo-electric generators;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/476/1/012031/pdf
DOI  :  10.1088/1742-6596/476/1/012031

来源: IOP

【 摘 要 】

This paper reports the fabrication and testing of Bismuth Tellurium (Bi2Te3)-Antimony Tellurium (Sb2Te3) based thermocouples using screen printing technology. In this study, screen printable thermoelectric pastes were developed and the transport properties of cured material were measured. The dimension of each planer thermoleg is 39.3 mm × 3 mm with a thickness of 67 μm for Bi2Te3leg and 62 μm for Sb2Te3leg. A single thermocouple with this dimension can generate a voltage of 6 mV and a peak output power of 48 nW at a temperature difference of 20°C. The calculated Seebeck coefficient of a single thermocouple is in the range of 262-282 μV/K. The Seebeck coefficient at room temperature were measured to be -134 - 119 μV/K and 128-134 μV/K for Bi2Te3and Sb2Te3respectively. This work demonstrates that the low-cost screen printing technology and low-temperature materials are promising for the fabrication of flexible thermoelectric generators (TEGs).