Abstract
In this chapter, we discussed the first type of pressure/touch sensor based on TENG. In general, the pressure response contains a high sensitivity region at relatively low pressure, and a low sensitivity region at higher pressure. Possible explanations of this behavior include full closing of air gap or saturation of increasing contact area between the touch object and the device. It has been demonstrated that the open-circuit voltage could be employed for static pressure detection to obtain the amplitude of the applied pressure, while the short-circuit current mainly reveals the dynamic information of the applied pressure like loading rate or acceleration. To achieve the goal of self-powered tactile imaging, multiple triboelectric active sensor units were integrated into a matrix with a common aluminum electrode at the bottom. The TENG sensors have been further incorporated in a keyboard structure for self-powered human-machine interface. The polymer-coated smart keyboard has the function of recognize personal typing patterns to achieve security authentication of personal electronics. This new concept of human-machine interface has numerous potential applications in next-generation smart electronics and wearable devices.
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References
Z.L. Wang, Triboelectric nanogenerators as new energy technology for self-powered systems and as active mechanical and chemical sensors. ACS Nano 7(11), 9533–9557 (2013)
Z.L. Wang, Triboelectric nanogenerators as new energy technology and self-powered sensors—principles, problems and perspectives. Faraday Discuss. 176, 447–458 (2014)
Z.L. Wang, J. Chen, L. Lin, Progress in triboelectric nanogenerators as a new energy technology and self-powered sensors. Energy Environ. Sci. 8(8), 2250–2282 (2015)
F.R. Fan, L. Lin, G. Zhu, W.Z. Wu, R. Zhang, Z.L. Wang, Transparent triboelectric nanogenerators and self-powered pressure sensors based on micropatterned plastic films. Nano Lett. 12(6), 3109–3114 (2012)
L. Lin, Y.N. Xie, S.H. Wang, W.Z. Wu, S.M. Niu, X.N. Wen, Z.L. Wang, Triboelectric active sensor array for self-powered static and dynamic pressure detection and tactile imaging. ACS Nano 7(9), 8266–8274 (2013)
G. Zhu, W.Q. Yang, T.J. Zhang, Q.S. Jing, J. Chen, Y.S. Zhou, P. Bai, Z.L. Wang, Self-powered, ultrasensitive, flexible tactile sensors based on contact electrification. Nano Lett. 14(6), 3208–3213 (2014)
P. Bai, G. Zhu, Q.S. Jing, J. Yang, J. Chen, Y.J. Su, J.S. Ma, G. Zhang, Z.L. Wang, Membrane-based self-powered triboelectric sensors for pressure change detection and its uses in security surveillance and healthcare monitoring. Adv. Funct. Mater. 24(37), 5807–5813 (2014)
Y. Yang, H.L. Zhang, Z.H. Lin, Y.S. Zhou, Q.S. Jing, Y.J. Su, J. Yang, J. Chen, C.G. Hu, Z.L. Wang, Human skin based triboelectric nanogenerators for harvesting biomechanical energy and as self-powered active tactile sensor system. ACS Nano 7(10), 9213–9222 (2013)
J.J. Luo, F.R. Fan, T. Zhou, W. Tang, F. Xue, Z.L. Wang, Ultrasensitive self-powered pressure sensing system. Extreme Mech. Lett. 2, 28–36 (2015)
Y. Yang, H.L. Zhang, X.D. Zhong, F. Yi, R.M. Yu, Y. Zhang, Z.L. Wang, Electret film-enhanced triboelectric nanogenerator matrix for self-powered instantaneous tactile imaging. ACS Appl. Mater. Interfaces 6(5), 3680–3688 (2014)
J. Chen, G. Zhu, J. Yang, Q.S. Jing, P. Bai, W.Q. Yang, X.W. Qi, Y.J. Su, Z.L. Wang, Personalized keystroke dynamics for self-powered human-machine interfacing. ACS Nano 9(1), 105–116 (2015)
Y.G. Sun, B. Gates, B. Mayers, Y.N. Xia, Crystalline silver nanowires by soft solution processing. Nano Lett. 2(2), 165–168 (2002)
C.L. Choong, M.B. Shim, B.S. Lee, S. Jeon, D.S. Ko, T.H. Kang, J. Bae, S.H. Lee, K.E. Byun, J. Im, Y.J. Jeong, C.E. Park, J.J. Park, U.I. Chung, Highly stretchable resistive pressure sensors using a conductive elastomeric composite on a micropyramid array. Adv. Mater. 26(21), 3451–3458 (2014)
S. Gong, W. Schwalb, Y.W. Wang, Y. Chen, Y. Tang, J. Si, B. Shirinzadeh, W.L. Cheng, A wearable and highly sensitive pressure sensor with ultrathin gold nanowires. Nat. Commun. 5, 3132 (2014)
C. Pang, G.Y. Lee, T.I. Kim, S.M. Kim, H.N. Kim, S.H. Ahn, K.Y. Suh, A flexible and highly sensitive strain-gauge sensor using reversible interlocking of nanofibres. Nat. Mater. 11(9), 795–801 (2012)
W.Z. Wu, X.N. Wen, Z.L. Wang, Taxel-addressable matrix of vertical-nanowire piezotronic transistors for active and adaptive tactile imaging. Science 340(6135), 952–957 (2013)
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Wang, Z.L., Lin, L., Chen, J., Niu, S., Zi, Y. (2016). Self-powered Sensing for Human-Machine Interface . In: Triboelectric Nanogenerators. Green Energy and Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-40039-6_14
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DOI: https://doi.org/10.1007/978-3-319-40039-6_14
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