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  • Title: Thermoelectric Properties of Flexible PEDOT:PSS/Polypyrrole/Paper Nanocomposite Films.
    Author: Li J, Du Y, Jia R, Xu J, Shen SZ.
    Journal: Materials (Basel); 2017 Jul 11; 10(7):. PubMed ID: 28773141.
    Abstract:
    Flexible poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/polypyrrole/paper (PEDOT:PSS/PPy/paper) thermoelectric (TE) nanocomposite films were prepared by a two-step method: first, PPy/paper nanocomposite films were prepared by an in situ chemical polymerization process, and second, PEDOT:PSS/PPy/paper TE composite films were fabricated by coating the as-prepared PPy/paper nanocomposite films using a dimethyl sulfoxide-doped PEDOT:PSS solution. Both the electrical conductivity and the Seebeck coefficient of the PEDOT:PSS/PPy/paper TE nanocomposite films were greatly enhanced from 0.06 S/cm to ~0.365 S/cm, and from 5.44 μV/K to ~16.0 μV/K at ~300 K, respectively, when compared to the PPy/paper TE nanocomposite films. The thermal conductivity of the PEDOT:PSS/PPy/paper composite film (0.1522 Wm-1K-1 at ~300 K) was, however, only slightly higher than that of the PPy/paper composite film (0.1142 Wm-1K-1 at ~300 K). As a result, the ZT value of the PEDOT:PSS/PPy/paper composite film (~1.85 × 10-5 at ~300 K) was significantly enhanced when compared to that of the PPy/paper composite film (~4.73 × 10-7 at ~300 K). The as-prepared nanocomposite films have great potential for application in flexible TE devices.
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