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Flexible Thermoelec...
Flexible Thermoelectric Double-Layer Inorganic/Organic Composites Synthesized by Additive Manufacturing
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- Du, Yong (författare)
- Shanghai Inst Technol, Peoples R China
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- Chen, Jiageng (författare)
- Shanghai Inst Technol, Peoples R China
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- Meng, Qiufeng (författare)
- Shanghai Inst Technol, Peoples R China
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- Xu, Jiayue (författare)
- Shanghai Inst Technol, Peoples R China
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- Lu, Jun (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Paul, Biplab (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Eklund, Per (författare)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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(creator_code:org_t)
- 2020-07-16
- 2020
- Engelska.
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Ingår i: Advanced Electronic Materials. - : WILEY. - 2199-160X. ; 6:8
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://onlinelibrar...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This study shows an approach to combine a high electrical conductivity of one composite layer with a high Seebeck coefficient of another composite layer in a double-layer composite, resulting in high thermoelectric power factor. Flexible double-layer-composites, made from Bi2Te3-based-alloy/polylactic acid (BTBA/PLA) composites and Ag/PLA composites, are synthesized by solution additive manufacturing. With the increase in Ag volume-ratio from 26.3% to 41.7% in Ag/PLA layers, the conductivity of the double-layer composites increases from 12 S cm(-1)to 1170 S cm(-1), while the Seebeck coefficient remains approximate to 80 mu V K(-1)at 300 K. With further increase in volume ratio of Ag until 45.6% in Ag/PLA composite layer, the electrical conductivity of the double-layer composites increases to 1710 S cm(-1), however, with a slight decrease of the Seebeck coefficient to 64 mu V K-1. The electrical conductivity and Seebeck coefficient vary only to a limited extent with the temperature. The high Seebeck coefficient is due to scattering of low energy charge carriers across compositionally graded interfaces. A power factor of 875 mu W m(-1) K(-2)is achieved at 360 K for 41.7 vol.% Ag in the Ag/PLA layers. Solution additive manufacturing can directly print this double-layer composite into intricate geometries, making this process is promising for large-scale fabrication of thermoelectric composites.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- additive manufacturing; composites; mechanical flexibility; thermoelectrics
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