Abstract

Ferroelectric film materials have attracted significant interest due to their potential for harvesting various forms of clean energy from natural environmental sources. However, the photoelectric performance of these materials is frequently constrained by heat generation during light absorption, resulting in significant thermal losses. Most of ferroelectric films produce photocurrent and thermocurrent with opposite polarity, thus weakening the coupled photo-thermoelectric output of the devices. Here we report on a LaNiO3/BiMn2O5(BMO)/ITO ferroelectric film to produce photocurrent and thermocurrent with the same polarity. The polarity of the photocurrent generated by the BMO film is shown to be determined solely by the direction of spontaneous polarization, overcoming the detrimental effect of Schottky barrier for energy harvesting in device. We propose a new strategy to enhance the coupling factor, thereby offering valuable new insights for optimizing the utilization of ferroelectric materials in both light and heat energy applications.

Original languageEnglish
Article number100260
JournalAdvanced Powder Materials
Volume4
Issue number1
Early online date11 Dec 2024
DOIs
Publication statusE-pub ahead of print - 11 Dec 2024

Funding

This work was supported by the National Natural Science Foundation of China (grant no. 52072041), the Beijing Natural Science Foundation (grant no. JQ21007).

Keywords

  • Coupling enhancement
  • Coupling factor
  • Current polarity
  • Ferroelectric
  • Photo-thermoelectric

ASJC Scopus subject areas

  • Catalysis
  • Ceramics and Composites
  • Materials Science (miscellaneous)
  • Energy (miscellaneous)
  • Surfaces, Coatings and Films
  • Metals and Alloys

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