Abstract
In this paper, we have developed a simple strategy for the preparation of hybrid nanocomposites of poly(3,4-ethylenedioxythiophene)–TiO2/ZnO (PZT) and demonstrated its application in a thermoelectric device. Hierarchical hetero-nanostructured TiO2/ZnO (ZTO) was prepared by a facile sol–gel process in the presence of a biocapping agent. PZT was prepared by in situ polymerization of EDOT in the presence of ZTO. It was characterized by UV–visible, FT-IR, XRD, Raman, SEM, TEM, and AFM analyses. Results revealed homogeneous distribution of ZTO with a heterocrystalline phase of wurtzite ZnO/anatase TiO2 having high density of various defects in the hybrid nanocomposite. Studies showed that ZTO is excellently interfaced with highly ordered self-assembled extended π-layers of PEDOT chains, which could enhance the charge carrier concentration (3.92 × 1020 cm–3) and charge carrier mobility (0.83 cm2 V–1 s–1). Furthermore, we have demonstrated its application as a thermoelectric material by fabricating the device (C...
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