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Tribotronic Transistor Array as an Active Tactile Sensing System.

Zhi Wei Yang1, Yaokun Pang1, Limin Zhang1

  • 1Beijing Institute of Nanoenergy and Nanosystems , Chinese Academy of Sciences, and National Center for Nanoscience and Technology (NCNST), Beijing 100083, P. R. China.

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|December 28, 2016
PubMed
Summary

Researchers developed a flexible 10x10 tribotronic transistor array (TTA) for active tactile sensing. This innovative sensor array offers high durability and sensitivity for applications in robotics and wearable electronics.

Keywords:
TENGmotion monitoringspatial mappingtactile sensortribotronics

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Area of Science:

  • Flexible electronics
  • Sensor technology
  • Triboelectric nanogenerators

Background:

  • Large-scale tactile sensor arrays are crucial for human-robot interaction and medical monitoring.
  • Existing tactile sensors often face limitations in flexibility and integration.

Purpose of the Study:

  • To develop a flexible 10x10 tribotronic transistor array (TTA) as an active tactile sensing system.
  • To investigate the performance and scalability of the TTA for various applications.

Main Methods:

  • Fabrication of a TTA by integrating field-effect transistor units and triboelectric nanogenerators on a polyimide substrate.
  • Modulation of drain-source current via local electrostatic potential induced by external contact.
  • Systematic investigation of pixel sensitivity by scaling down pixel size.

Main Results:

  • The TTA demonstrated individually controllable pixels sensitive to external contact.
  • Pixel sensitivity was systematically investigated across different sizes (5x5 to 0.5x0.5 mm²).
  • The TTA exhibited excellent durability, independence, and synchronicity.

Conclusions:

  • The integrated tribotronics offer an novel approach for active tactile sensing systems.
  • The TTA is suitable for real-time tactile sensing, motion monitoring, and spatial mapping.
  • Prospective applications include wearable electronics, human-machine interfaces, and fingerprint identification.