Chip-less wireless electronic skins by remote epitaxial freestanding compound semiconductors

Autor:	Yeongin Kim, Jun Min Suh, Jiho Shin, Yunpeng Liu, Hanwool Yeon, Kuan Qiao, Hyun S. Kum, Chansoo Kim, Han Eol Lee, Chanyeol Choi, Hyunseok Kim, Doyoon Lee, Jaeyong Lee, Ji-Hoon Kang, Bo-In Park, Sungsu Kang, Jihoon Kim, Sungkyu Kim, Joshua A. Perozek, Kejia Wang, Yongmo Park, Kumar Kishen, Lingping Kong, Tomás Palacios, Jungwon Park, Min-Chul Park, Hyung-jun Kim, Yun Seog Lee, Kyusang Lee, Sang-Hoon Bae, Wei Kong, Jiyeon Han, Jeehwan Kim
Rok vydání:	2022
Předmět:	Wearable Electronic Devices Multidisciplinary Semiconductors Remote Sensing Technology Humans Pulse Sweat Monitoring Physiologic
Zdroj:	Science (New York, N.Y.). 377(6608)
ISSN:	1095-9203
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6097b8e0b437c48b7b6c60634b0ccd9e https://pubmed.ncbi.nlm.nih.gov/35981034 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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