Tribotronic Transistor Array as an Active Tactile Sensing System

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• 作者：Zhi Wei Yang ; Yaokun Pang ; Limin Zhang ; Cunxin Lu ; Jian Chen ; Tao Zhou ; Chi Zhang ; Zhong Lin Wang
• 刊名：ACS Nano
• 出版年：2016
• 出版时间：December 27, 2016
• 年：2016
• 卷：10
• 期：12
• 页码：10912-10920
• 全文大小：511K
• ISSN：1936-086X

文摘

Large-scale tactile sensor arrays are of great importance in flexible electronics, human–robot interaction, and medical monitoring. In this paper, a flexible 10 × 10 tribotronic transistor array (TTA) is developed as an active tactile sensing system by incorporating field-effect transistor units and triboelectric nanogenerators into a polyimide substrate. The drain–source current of each tribotronic transistor can be individually modulated by the corresponding external contact, which has induced a local electrostatic potential to act as the conventional gate voltage. By scaling down the pixel size from 5 × 5 to 0.5 × 0.5 mm², the sensitivities of single pixels are systematically investigated. The pixels of the TTA show excellent durability, independence, and synchronicity, which are suitable for applications in real-time tactile sensing, motion monitoring, and spatial mapping. The integrated tribotronics provides an unconventional route to realize an active tactile sensing system, with prospective applications in wearable electronics, human–machine interfaces, fingerprint identification, and so on.