Preparation method of self-driven tactile sensor based on ion transmission

Abstract

The invention discloses a preparation method of a self-driven tactile sensor based on ion transmission. The tactile sensor comprises an inert electrode, an upper electrolyte, a nanofiber spacer, a lower electrolyte and an active electrode which are sequentially and fixedly arranged from top to bottom. Both the inert electrode and the active electrode are made of flexible nanofiber composite conductive materials constructed by a dip-coating method; the electrolyte is an ionic conductive material; nanofiber processing creates nanopores and intervals between the two layers of flexible solid electrolyte. The active electrode and the inert electrode can be subjected to an oxidation-reduction reaction under a certain condition, the ion transport performance of the device is regulated and controlled through pressure, the ion transport performance is encoded into an oxidation-reduction potential difference between the two electrodes, and therefore stable and controllable electric signal output can be generated. The tactile sensor can generate static pressure sensing performance under the condition that a power supply is not additionally arranged, has good flexibility, sensitivity and stability, and has important application prospects in the fields of wearable electronic devices, human-computer interaction interfaces, intelligent robots and the like.

Description

technical field [0001] The invention relates to the field of flexible electronic devices, in particular to a preparation method of a self-driven tactile sensor based on ion transmission. Background technique [0002] Haptics is an important source of information for intelligent devices and intelligent robots to perceive and obtain external tactile information. With the rapid development of intelligent technology with tactile sensors as the core basic equipment, the development of sensors with low power consumption, high stability and high sensitivity is crucial for the development of human-computer interaction interfaces, biomedicine, and intelligent robots that sense external stimuli. significance. However, the traditional pressure sensing mechanism is often based on electronic transmission, which often cannot avoid the disadvantages of high power consumption, poor stability, and poor anti-interference, resulting in complicated device wiring, serious performance degradatio...

AI Technical Summary

Problems solved by technology

In addition, there are still great challenges in developing materials and devices with long-term reliable sensing capabilities based on biomimetic skin tactile transduction mechanisms.

Images