Electrical, mechanical, and energy harvesting of a pyroelectric polymer nanocomposite

• Published in: Current applied physics 2023-08, Vol.52, p.37-44
• Main Authors: Panwar, Lokesh Singh, Panwar, Varij, Ansari, Mohd Umer, Anoop, Gopinathan, Park, Sukho
• Format: Article
• Language: English
• Subjects: PAMPS; Polymer nanocomposite; PVDF; Pyroelectricity
• ISSN: 1567-1739; 1878-1675
• DOI: 10.1016/j.cap.2023.05.016

Flexible pyroelectric devices can convert waste heat from the human body, sun, industry, geothermal, and automobiles into renewable electricity. In this paper, carbon nanofiber (CNF) and poly(2-acrylamide-2-methyl-1-propane-sulfonic acid) and PAMPS attached poly(vinylidene fluoride) (PVDF) pyroelectric polymer nanocomposite (PyPNC) were investigated for electrical, mechanical, and pyroelectric performance with temperature variations. The ac conductivity and open circuit voltage of PyPNC increased with temperature. The PyPNC showed the enhanced AC conductivity (σac) of 89 S/cm and open circuit output voltage of 4.8 V at 120 °C due to the alignment of CNF with PAMPS beads that enhanced the volume fraction of the β-phase in PyPNC at 120 °C than that of the random orientation of CNF with PAMPS beads of PyPNC at 20 °C, 50 °C, and 150 °C. [Display omitted] •The electrical conductivity and output voltage of PVDF/CNF/PAMPS PyPNC increased with increasing temperature.•PyPNC showed an enhanced electrical and output voltage at 120 °C than 20 °C, 50 °C, and 150 °C.•PyPNC showed an enhanced DC conductivity of 89 S/cm and an output voltage of 4.8 V at 120 °C.