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A Chemically Doped Naphthalenediimide-Bithiazole Polymer for n-Type Organic Thermoelectrics

Wang, Suhao (author)
Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
Sun, Hengda (author)
Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
Erdmann, Tim (author)
Tech Univ Dresden, Germany; Leibniz Inst Polymerforsch Dresden eV, Germany; Flexterra Corp, IL 60077 USA; IBM Almaden Res Ctr, CA 95120 USA
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Wang, Gang (author)
Northwestern Univ, IL 60208 USA
Fazzi, Daniele (author)
Max Planck Inst Kohlenforsch, Germany; Univ Cologne, Germany
Lappan, Uwe (author)
Leibniz Inst Polymerforsch Dresden eV, Germany
Puttisong, Yuttapoom (author)
Linköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten
Chen, Zhihua (author)
Flexterra Corp, IL 60077 USA
Berggren, Magnus (author)
Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
Crispin, Xavier (author)
Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten
Kiriy, Anton (author)
Tech Univ Dresden, Germany; Leibniz Inst Polymerforsch Dresden eV, Germany
Voit, Brigitte (author)
Tech Univ Dresden, Germany; Leibniz Inst Polymerforsch Dresden eV, Germany
Marks, Tobin J. (author)
Northwestern Univ, IL 60208 USA; Northwestern Univ, IL 60208 USA
Fabiano, Simone (author)
Linköpings universitet,Fysik och elektroteknik,Tekniska fakulteten,Flexterra Corp, IL 60077 USA; Northwestern Univ, IL 60208 USA; Northwestern Univ, IL 60208 USA
Facchetti, Antonio (author)
Flexterra Corp, IL 60077 USA; Northwestern Univ, IL 60208 USA; Northwestern Univ, IL 60208 USA
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 (creator_code:org_t)
2018-06-21
2018
English.
In: Advanced Materials. - : WILEY-V C H VERLAG GMBH. - 0935-9648 .- 1521-4095. ; 30:31
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The synthesis of a novel naphthalenediimide (NDI)-bithiazole (Tz2)-based polymer [P(NDI2OD-Tz2)] is reported, and structural, thin-film morphological, as well as charge transport and thermoelectric properties are compared to the parent and widely investigated NDI-bithiophene (T2) polymer [P(NDI2OD-T2)]. Since the steric repulsions in Tz2 are far lower than in T2, P(NDI2OD-Tz2) exhibits a more planar and rigid backbone, enhancing p-p chain stacking and intermolecular interactions. In addition, the electron-deficient nature of Tz2 enhances the polymer electron affinity, thus reducing the polymer donor-acceptor character. When n-doped with amines, P(NDI2OD-Tz2) achieves electrical conductivity (approximate to 0.1 S cm(-1)) and a power factor (1.5 mu W m(-1) K-2) far greater than those of P(NDI2OD-T2) (0.003 S cm(-1) and 0.012 mu W m(-1) K-2, respectively). These results demonstrate that planarized NDI-based polymers with reduced donor-acceptor character can achieve substantial electrical conductivity and thermoelectric response.

Subject headings

NATURVETENSKAP  -- Kemi -- Polymerkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Polymer Chemistry (hsv//eng)

Keyword

donor-acceptor polymers; doping; NDI-based polymers; n-type polymers; organic thermoelectrics

Publication and Content Type

ref (subject category)
art (subject category)

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