Triboelectrification-enabled thin-film tactile matrix for self-powered high-resolution imaging

Xiao Xiao Zhu, Ze Bin Li, Xiao Shi Li, Li Su, Xiao Yan Wei, Shuang Yang Kuang, Bing Wu Su, Jin Yang, Zhong Lin Wang, Guang Zhu

Research output: Journal PublicationArticlepeer-review

21 Citations (Scopus)

Abstract

Tactile sensors have broad applications in human-machine interfacing technologies. In this work, we report a type of a thin-film-based flexible integrated triboelectric sensing matrix (ITESM) that is of high resolution and large area. It has a total of 3600 sensing units and a resolution of 50 dots per inch (dpi), which are 14 times and 25 times of the state-of-the-art works on the triboelectric sensor array, respectively. When touched by an external object, the ITESM generates a voltage signal in its bit electrode lines and word electrode lines due to the combination of triboelectrification and electrostatic induction. With the assistance of a signal processing circuit that filters and amplifies the electric signal, an average voltage signal of 0.4 V can be acquired. Due to the design of a shielding layer, the electrostatic induction among adjacent electrode lines are effectively eliminated, resulting in a near end crosstalk (NEXT) of merely 0.05. As a result, single-point as well as multi-point contacts can be explicitly revealed. Therefore, the ITESM in this work presents a major step in the direction of high-resolution and large-area triboelectric sensing.

Original languageEnglish
Pages (from-to)497-503
Number of pages7
JournalNano Energy
Volume50
DOIs
Publication statusPublished - Aug 2018

Keywords

  • Self-powered
  • Sensor matrix
  • Tactile sensor
  • Triboelectrification

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science (all)
  • Electrical and Electronic Engineering

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