Chip-less wireless electronic skins by remote epitaxial freestanding compound semiconductors.
Science
; 377(6608): 859-864, 2022 08 19.
Article
in En
| MEDLINE
| ID: mdl-35981034
ABSTRACT
Recent advances in flexible and stretchable electronics have led to a surge of electronic skin (e-skin)-based health monitoring platforms. Conventional wireless e-skins rely on rigid integrated circuit chips that compromise the overall flexibility and consume considerable power. Chip-less wireless e-skins based on inductor-capacitor resonators are limited to mechanical sensors with low sensitivities. We report a chip-less wireless e-skin based on surface acoustic wave sensors made of freestanding ultrathin single-crystalline piezoelectric gallium nitride membranes. Surface acoustic wave-based e-skin offers highly sensitive, low-power, and long-term sensing of strain, ultraviolet light, and ion concentrations in sweat. We demonstrate weeklong monitoring of pulse. These results present routes to inexpensive and versatile low-power, high-sensitivity platforms for wireless health monitoring devices.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Remote Sensing Technology
/
Wearable Electronic Devices
/
Monitoring, Physiologic
Limits:
Humans
Language:
En
Journal:
Science
Year:
2022
Document type:
Article
Affiliation country:
United States
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA