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Advances in Piezoelectret Materials-Based Bidirectional Haptic Communication Devices.

Yanting Gong1, Kaijun Zhang1, Iek Man Lei1

  • 1Department of Electromechanical Engineering and Centre for Artificial Intelligence and Robotics, University of Macau, Macau, SAR, 999078, China.

Advanced Materials (Deerfield Beach, Fla.)
|June 19, 2024
PubMed
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Piezoelectret materials offer a promising avenue for bidirectional haptic communication devices, crucial for virtual/augmented reality and wearable electronics. This review details their construction, advancements, and future potential.

Area of Science:

  • Materials Science
  • Electrical Engineering
  • Human-Computer Interaction

Background:

  • Piezoelectret materials are emerging flexible materials that convert mechanical to electrical signals and vice-versa.
  • These materials hold significant potential for bidirectional haptic communication devices.
  • Current reviews predominantly focus on energy harvesting and sensing applications, neglecting haptic communication.

Purpose of the Study:

  • To provide a comprehensive overview of piezoelectret materials for bidirectional haptic communication.
  • To review recent advancements in piezoelectret-based haptic devices.
  • To discuss challenges and opportunities for practical applications.

Main Methods:

  • Review of material construction, characteristics, and fabrication methods of piezoelectret materials.
Keywords:
actuatorshaptichuman–machine interfacespiezoelectretsensors

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  • Analysis of bidirectional electromechanical signal conversion mechanisms.
  • Summary of strategies to enhance piezoelectric coefficients (d33).
  • Highlighting principles of haptic perception and feedback.

    • Main Results:

    • Detailed timeline and key characteristics of piezoelectret materials.
    • Proposed strategies for improving d33 coefficients.
    • Summary of representative works and progress in piezoelectret-based haptic devices.
    • Discussion on haptic perception and feedback principles.

    Conclusions:

    • Piezoelectret materials are well-suited for bidirectional haptic communication.
    • Further research is needed to enhance material properties and device practicality.
    • Significant opportunities exist for advancing virtual/augmented reality and wearable electronics through these materials.