Studying the Pyroelectric Effects of LiNbO3 Modified Composites

Fan Zhang, Hua Kang, Yixuan Lin, Li Guan*, Hüsnü Aslan, Meining Zhang, Lin Niu, Mingdong Dong

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

11 Citations (Scopus)

Abstract

LiNbO3 (LN) crystal has been widely used as a pyroelectric material due to its spontaneous electric polarization, which could be recharged easily and can directly convert heat energy into electricity. LN crystal’s heat-resistant, low-cost, and low dielectric loss properties make it possible for its applications in room-temperature pyroelectric devices and thermal sensors. However, LN crystal suffers from fragility, inflexibility, and other mechanical properties, which limit its suitability for many applications in various fields. In this study, the LN modified flexible pyroelectric films, composed of LN micro-particles, polypropylene (PP) matrix, and multiwalled carbon nanotubes (MWCNTs), are successfully fabricated. The pyroelectric effects of LN crystal and LN/PP/MWCNT composite films are characterized by monitoring the patterned self-assembly of nanoparticles and the output pyroelectric currents. The excellent pyroelectric properties of the composites have potential applications in energy harvesters or sensors.

Original languageEnglish
Article number106
JournalNanoscale Research Letters
Volume15
Issue1
ISSN1931-7573
DOIs
Publication statusPublished - 2020

Keywords

  • Composite film
  • Pyroelectric effects
  • Self-assembly of nanoparticles

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