Journal
NATURE
Volume 600, Issue 7888, Pages 246-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41586-021-04053-6
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Funding
- SAIT
- Samsung Electronics Co., Ltd.
- Agency for Science, Technology and Research (A*STAR) [A18A1b0045]
- Japan Society for the Promotion of Science (JSPS)
- National Science Foundation [ECCS-1542152]
- JST, PRESTO, Japan [JPMJPR20B7]
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This paper presents an intrinsically stretchable diode based on stretchable organic and nanomaterials, capable of operating at a frequency as high as 13.56 megahertz. This advancement enables enhanced functionalities and capabilities for skin-like wearable electronics.
Skin-like intrinsically stretchable soft electronic devices are essential to realize next-generation remote and preventative medicine for advanced personal healthcare(1-4). The recent development of intrinsically stretchable conductors and semiconductors has enabled highly mechanically robust and skin-conformable electronic circuits or optoelectronic devices(2,5-10). However, their operating frequencies have been limited to less than 100 hertz, which is much lower than that required for many applications. Here we report intrinsically stretchable diodes-based on stretchable organic and nanomaterials-capable of operating at a frequency as high as 13.56 megahertz. This operating frequency is high enough for the wireless operation of soft sensors and electrochromic display pixels using radiofrequency identification in which the base-carrier frequency is 6.78 megahertz or 13.56 megahertz. This was achieved through a combination of rational material design and device engineering. Specifically, we developed a stretchable anode, cathode, semiconductor and current collector that can satisfy the strict requirements for high-frequency operation. Finally, we show the operational feasibility of our diode by integrating it with a stretchable sensor, electrochromic display pixel and antenna to realize a stretchable wireless tag. This work is an important step towards enabling enhanced functionalities and capabilities for skin-like wearable electronics.
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