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Ion rectification based on gel polymer electrolyte ionic diode

Author

Listed:
  • Fan Jiang

    (Nanyang Technological University 50 Nanyang Avenue)

  • Wei Church Poh

    (Nanyang Technological University 50 Nanyang Avenue)

  • Juntong Chen

    (Nanyang Technological University 50 Nanyang Avenue)

  • Dace Gao

    (Nanyang Technological University 50 Nanyang Avenue)

  • Feng Jiang

    (Nanyang Technological University 50 Nanyang Avenue)

  • Xiaoyu Guo

    (Nanyang Technological University 50 Nanyang Avenue)

  • Jian Chen

    (Nanyang Technological University 50 Nanyang Avenue)

  • Pooi See Lee

    (Nanyang Technological University 50 Nanyang Avenue)

Abstract

Biological ion channels rely on ions as charge carriers and unidirectional ion flow to produce and transmit signals. To realize artificial biological inspired circuitry and seamless human-machine communication, ion-transport-based rectification devices should be developed. In this research, poly(methyl methacrylate) (PMMA) and poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) gel polymer electrolytes (GPEs) are assembled to construct a novel ionic diode, enabling ion rectification through ion-diffusion/migration that emulates biological systems. This ion rectification results from the different diffusion/migration behaviors of mobile ions transporting in the GPE heterojunction. The electrical tests of the GPE heterojunction reveal outstanding rectifying ratio of 23.11. The GPE ionic diode operates in wide temperature window, from −20 °C (anti-freezing) to 125 °C (thermal tolerance). The absence of redox reactions is verified in the cyclic voltammogram. The GPE ionic diodes are used to construct ionic logic gates for signal communication. Furthermore, rectification of a triboelectric nanogenerator and potential for synaptic devices are demonstrated.

Suggested Citation

  • Fan Jiang & Wei Church Poh & Juntong Chen & Dace Gao & Feng Jiang & Xiaoyu Guo & Jian Chen & Pooi See Lee, 2022. "Ion rectification based on gel polymer electrolyte ionic diode," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34429-9
    DOI: 10.1038/s41467-022-34429-9
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