High-frequency and intrinsically stretchable polymer diodes


Title: High-frequency and intrinsically stretchable polymer diodes
Authors: Naoji Matsuhisa, Simiao Niu, Stephen J. K. O'Neill, Jiheong Kang, Yuto Ochiai, Toru Katsumata, Hung-Chin Wu, Minoru Ashizawa, Ging-Ji Nathan Wang, Donglai Zhong, Xuelin Wang, Xiwen Gong, Rui Ning, Huaxin Gong, Insang You, Yu Zheng, Zhitao Zhang, Jeffrey B.-H. Tok, Xiaodong Chen & Zhenan Bao
Journal: Nature, Vol 600, Issue 7888, Page 246-252 (2021)
DOI: 10.1038/s41586-021-04053-6

Skin-like intrinsically stretchable soft electronic devices are essential to realize next-generation remote and preventative medicine for advanced personal healthcare1-4. The recent development of intrinsically stretchable conductors and semiconductors has enabled highly mechanically robust and skin-conformable electronic circuits or optoelectronic devices2,5-10. 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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