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Sequential doping o...
Sequential doping of solid chunks of a conjugated polymer for body-heat-powered thermoelectric modules
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- Yu, Liyang, 1986 (författare)
- Sichuan University,Chalmers tekniska högskola,Chalmers University of Technology
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- Scheunemann, Dorothea, 1985 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lund, Anja, 1971 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kiefer, David, 1989 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Müller, Christian, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- AIP Publishing, 2021
- 2021
- Engelska.
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 119:18
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://aip.scitatio...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Sequential doping of 1 mm3 sized cubes of regio-regular poly(3-hexylthiophene) (P3HT) with 2,3,5,6-tetrafluoro-tetracyanoquinodimethane is found to result in a doping gradient. The dopant ingresses into the solid material and after two weeks of sequential doping yields a 250 μm thick doped surface layer, while the interior of the cubes remains undoped. The doping gradient is mapped with energy dispersive x-ray spectroscopy (EDX), which is used to estimate a diffusion coefficient of 1 × 10-10 cm2 s-1 at room temperature. The cubes, prepared by pressing at 150 °C, feature alignment of polymer chains along the flow direction, which yields an electrical conductivity of 2.2 S cm-1 in the same direction. A 4-leg thermoelectric module was fabricated with slabs of pressed and doped P3HT, which generated a power of 0.22 μW for a temperature gradient of 10.2 °C generated by body heat.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Keramteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Ceramics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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