Fully integrated pressure-controlled electrochromic E-skins. Issue 14 (25th March 2021)

• Record Type: Journal Article
• Authors: Yue, Ziyu; Wang, Yi; Lin, Yuan; Jia, Chunyang
• Is Part Of: Journal of materials chemistry. Volume 9:Issue 14(2021)
• Page Start: 9134
• Page End: 9144
• Publication Date: 2021-03-25
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d1ta00380a
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : Two in one: vertically integrated dual function multi-layered pressure sensitive electrochromic device. Abstract : As the fundamental function of skins, tactile sensibility has been widely studied in the bionic electronic field or electronic skin (E-skin) field and various high performance pressure/strain sensors have been reported. Furthermore, to achieve advanced functions of skins such as sensibility to multiple stimuli, responsivity to stimuli and so on, the integration of multi-functional devices is the prime aspect of the E-skin field. For mimicking the natural skin response of pressing-to-coloring, here we introduced a pressure controlled electrochromic multi-layered device which fully integrated pressure-sensing and color-changing functions in a vertical assembly. Both the electrochromic layer and novel broad resistance variation pressure sensitive layer not only exhibit excellent performance in separated modules but also realized a promising skin response without peripheral circuits in the integrated device. Further in a fabricated 4 × 4 multi-pixel matrix E-skin system, each pixel unit can be independently controlled by pressure and also indicates the pressure exertion point by color variation. The matrix E-skin device with impressive flexibility shows broad application potential in health monitoring, smart robotic devices and human–machine interfacial applications.