A fully inkjet-printed transparent humidity sensor based on a Ti3C2/Ag hybrid for touchless sensing of finger motion. Issue 44 (5th November 2019)

• Record Type: Journal Article
• Authors: Li, Ning; Jiang, Yue; Xiao, Yan; Meng, Bo; Xing, Chenyang; Zhang, Han; Peng, Zhengchun
• Is Part Of: Nanoscale. Volume 11:Issue 44(2019)
• Page Start: 21522
• Page End: 21531
• Publication Date: 2019-11-05
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c9nr06751e
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : We developed a flexible and transparent humidity sensor based on Ti3 C2 /Ag-PDDA bilayer with excellent bending resistance. This kind of sensor arrays can dynamic track finger motions in a non-contact way. Abstract : Inkjet-printing was used to prepare a flexible and transparent humidity sensor with a Ti3 C2 /Ag hybrid as the humidity-sensitive film and poly(diallyldimethylammonium chloride) (PDDA) as the adhesive layer. The sensor demonstrates an ultrahigh sensitivity (106 800%), a rapid response (80 ms), and excellent bending resistance. We demonstrate that an array of sensors can track moving fingers in a non-contact way and map the distance of the fingers away from the sensor surface. Therefore, our humidity sensors have great potential for novel human–machine interfacing such as touchless control of electronics and collision control between robots and humans in a cobot setting.