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Self-powered user-interactive electronic skin for programmable touch operation platform.

Xuan Zhao^1,2, Zheng Zhang^1,2, Qingliang Liao^1,2

¹Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Advanced Energy Materials and Technologies, University of Science and Technology Beijing, Beijing 100083, China.

Science Advances

|August 25, 2020

Summary

Researchers developed a self-powered electronic skin (SUE-skin) that converts touch into light. This low-cost, simple device enables programmable touch control for electronics, with applications in augmented reality and prosthetics.

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Area of Science:

Materials Science
Robotics
Biomedical Engineering

Background:

User-interactive electronic skin offers touch spatial mapping and visual feedback.
Current electronic skin technologies face challenges with high power consumption, complex structures, and elevated costs, hindering practical implementation.

Purpose of the Study:

To develop a self-powered, user-interactive electronic skin (SUE-skin) that is simple, low-cost, and efficient.
To demonstrate the conversion of touch stimuli into both electrical signals and visible light without external power.
To create a programmable touch operation platform for controlling consumer electronics.

Main Methods:

A novel triboelectric-optical model was employed to create the SUE-skin.
The device achieves self-powered operation, converting mechanical pressure into electrical and optical signals.
Integration with a microcontroller enabled the recognition of over 156 distinct interaction logics.

Main Results:

The SUE-skin operates without an external power supply, converting touch stimuli into electrical signals and visible light.
It responds to trigger pressure thresholds as low as 20 kPa.
A programmable touch operation platform was successfully built, capable of recognizing numerous interaction logics for device control.

Conclusions:

The developed self-powered electronic skin (SUE-skin) presents a cost-effective and structurally simple alternative to existing technologies.
Its ability to provide both electrical and visual feedback upon touch, coupled with low power requirements, makes it suitable for practical applications.
Potential applications include gesture control, augmented reality interfaces, and advancements in intelligent prosthesis technology.