Conformable, flexible, large-area networks of pressure and thermal sensors with organic transistor active matrixes

DOI Web Site 被引用文献73件
  • Takao Someya
    Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, Tokyo 113-8656, Japan; and Center for Collaborative Research, University of Tokyo, Tokyo 153-8505, Japan
  • Yusaku Kato
    Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, Tokyo 113-8656, Japan; and Center for Collaborative Research, University of Tokyo, Tokyo 153-8505, Japan
  • Tsuyoshi Sekitani
    Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, Tokyo 113-8656, Japan; and Center for Collaborative Research, University of Tokyo, Tokyo 153-8505, Japan
  • Shingo Iba
    Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, Tokyo 113-8656, Japan; and Center for Collaborative Research, University of Tokyo, Tokyo 153-8505, Japan
  • Yoshiaki Noguchi
    Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, Tokyo 113-8656, Japan; and Center for Collaborative Research, University of Tokyo, Tokyo 153-8505, Japan
  • Yousuke Murase
    Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, Tokyo 113-8656, Japan; and Center for Collaborative Research, University of Tokyo, Tokyo 153-8505, Japan
  • Hiroshi Kawaguchi
    Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, Tokyo 113-8656, Japan; and Center for Collaborative Research, University of Tokyo, Tokyo 153-8505, Japan
  • Takayasu Sakurai
    Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, Tokyo 113-8656, Japan; and Center for Collaborative Research, University of Tokyo, Tokyo 153-8505, Japan

抄録

<jats:p>Skin-like sensitivity, or the capability to recognize tactile information, will be an essential feature of future generations of robots, enabling them to operate in unstructured environments. Recently developed large-area pressure sensors made with organic transistors have been proposed for electronic artificial skin (E-skin) applications. These sensors are bendable down to a 2-mm radius, a size that is sufficiently small for the fabrication of human-sized robot fingers. Natural human skin, however, is far more complex than the transistor-based imitations demonstrated so far. It performs other functions, including thermal sensing. Furthermore, without conformability, the application of E-skin on three-dimensional surfaces is impossible. In this work, we have successfully developed conformable, flexible, large-area networks of thermal and pressure sensors based on an organic semiconductor. A plastic film with organic transistor-based electronic circuits is processed to form a net-shaped structure, which allows the E-skin films to be extended by 25%. The net-shaped pressure sensor matrix was attached to the surface of an egg, and pressure images were successfully obtained in this configuration. Then, a similar network of thermal sensors was developed with organic semiconductors. Next, the possible implementation of both pressure and thermal sensors on the surfaces is presented, and, by means of laminated sensor networks, the distributions of pressure and temperature are simultaneously obtained.</jats:p>

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