Robust Displacement Sensing by Direct-Current Triboelectric Nanogenerator Via Intelligent Waveform Recognition

Keren Dai, Xuyi Miao, Wenling Zhang, Xiaohua Huang, He Zhang, Sang Woo Kim

Research output: Contribution to journalArticlepeer-review


A triboelectric nanogenerator (TENG) facilitates the advancement of self-powered displacement sensors, which are important for many autonomous intelligent microsystems. However, the amplitude-based displacement sensing of conventional TENG-based sensors still suffers significantly from varying charge densities in harsh environments. Benefiting from the combination of intelligent signal processing algorithms and direct-current TENG sensors, this study proposes an environmentally robust character-based displacement sensing method that eliminates the influences of varying charge density in principle. The experimental results show that under drastically changing air humidity and other harsh environments, the sensing of threshold and maximum displacement has far superior consistency and stability than that of traditional amplitude-based TENG sensors, providing a novel route to realize reliable self-powered displacement sensing in environment-variable applications.

Original languageEnglish
Article number2204694
JournalAdvanced Science
Issue number4
Publication statusPublished - 2023 Feb 3

Bibliographical note

Funding Information:
K.D. and X.M. contributed equally to this work. This work was financially supported by the National Natural Science Foundation of China (Grant No. 52007084) and the Basic Science Research Program (2022R1A3B1078291) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (MSIT) of Korea government.

Publisher Copyright:
© 2022 The Authors. Advanced Science published by Wiley-VCH GmbH.

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Engineering(all)
  • Physics and Astronomy(all)


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