Effective thermoelectric properties with polyselenophene/CuxS composites

HÜNER A.

Journal of Physics and Chemistry of Solids, cilt.194, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 194
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.jpcs.2024.112207
  • Dergi Adı: Journal of Physics and Chemistry of Solids
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Metadex
  • Anahtar Kelimeler: Clean energy, Composites, Conducting polymers, Seebeck coefficient, Thermoelectric
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

In this study, polyselenophene (PSe), which has more raw materials, lower cost, and can be processed more easily than inorganic thermoelectric materials, was synthesized as a polymeric thermoelectric material with a simple method by chemical oxidative polymerization in aqueous medium. Copper sulfide (CuxS) was synthesized and taken from it in different ratios compared to PSe, PSe/CuxS composites were prepared. The Seebeck coefficient of PSe is 160 μVK−1, while that of PSe/CuxS composite containing 30% CuxS is 410 μVK−1. The PSe/CuxS3 composite with 30% CuxS had the highest Seebeck coefficient and power factor, measuring 410 μVK−1 and 5043 μWm−1K−2, respectively. The electrical conductivity of PSe and PSe/CuxS composites obtained in this study is relatively high, ranging from 10 to 405 Scm−1. PSe and its composites were characterized by FTIR, UV–Vis., XRD, TGA, EDX, and FESEM.