We demonstrate that trimethylamine borane can exhibit desirable piezoelectric and pyroelectric properties. The material was shown to be able operate as a flexible film for both thermal sensing, thermal energy conversion and mechanical sensing with high open circuit voltages (>10 V). A piezoelectric coefficient of d33≈10–16 pC N−1, and pyroelectric coefficient of p≈25.8 μC m−2 K−1 were achieved after poling, with high pyroelectric figure of merits for sensing and harvesting, along with a relative permittivity of (Formula presented.) 6.3.

Original languageEnglish
Pages (from-to)7808-7812
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number20
Early online date27 Feb 2020
Publication statusPublished - 11 May 2020


  • energy conversion
  • flexible films
  • main group elements
  • piezoelectricity
  • pyroelectricity

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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