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Self-Sensing Paper Actuators Based on Graphite–Carbon Nanotube Hybrid Films




Abstract Soft actuators have demonstrated potential in a range of applications, including soft robotics, artificial muscles, and biomimetic devices. However, the majority of current soft actuators suffer from the lack of real-time sensory feedback, prohibiting their effective sensing and multitask function. Here, a promising strategy is reported to design bilayer electrothermal actuators capable of simultaneous actuation and sensation (i.e., self-sensing actuators), merely through two input electric terminals. Decoupled electrothermal stimulation and strain sensation is achieved by the optimal combination of graphite microparticles and carbon nanotubes (CNTs) in the form of hybrid films. By finely tuning the charge transport properties of hybrid films, the signal-to-noise ratio (SNR) of self-sensing actuators is remarkably enhanced to over 66. As a result, self-sensing actuators can actively track their displacement and distinguish the touch of soft and hard objects.

Author(s): M. Amjadi and M. Sitti
Journal: Advanced Science
Pages: 1800239
Year: 2018
Month: May
Day: 16

Department(s): Physical Intelligence
Research Project(s): Self-sensing paper actuators based on graphite-carbon nanotube hybrid films
Bibtex Type: Article (article)
Paper Type: Journal

DOI: 10.1002/advs.201800239
Eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/advs.201800239
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/advs.201800239


  title = {Self-Sensing Paper Actuators Based on Graphite–Carbon Nanotube Hybrid Films},
  author = {Amjadi, M. and Sitti, M.},
  journal = {Advanced Science},
  pages = {1800239},
  month = may,
  year = {2018},
  eprint = {https://onlinelibrary.wiley.com/doi/pdf/10.1002/advs.201800239},
  url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/advs.201800239},
  month_numeric = {5}