Intrinsically stretchable ionoelastomer junction logic gate synchronously deformable with liquid metal

Seung Won Lee, Jihye Jang, Yeonji Kim, Seokyeong Lee, Kyuho Lee, Hyowon Han, Hyeokjung Lee, Jin Woo Oh, Hoyeon Kim, Taebin Kim, Michael D. Dickey, Cheolmin Park

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Liquid-free ionic conductors, known as ionoelastomers, are of great interest because of their potential for developing reliable and resilient ionic devices with elastic mechanical properties. This study presents an intrinsically stretchable diode consisting of a highly stretchable ionoelastomer bilayer vertically stacked with liquid metal electrodes. The bilayer contains two types of ionoelastomer networks: one containing fixed anions with mobile cations and one containing fixed cations with mobile anions. Both ionoelastomers use 2-hydroxyethyl acrylate to provide high stretchability. The junction between the two ionoelastomers creates a diode with excellent non-Faradaic ionic current rectification. The voltage-dependent modulation of the ionic double layer at the interface between the two ionoelastomers provides the rectification. The elastic diode works under cyclic loading to a uniaxial stretch ratio of 6 (strain of 500%), allowing the development of a highly stretchable ionic OR logic gate.

Original languageEnglish
Article number041404
JournalApplied Physics Reviews
Issue number4
Publication statusPublished - 2022 Dec 1

Bibliographical note

Funding Information:
2018M3D1A1058536). This study was also supported by a grant from the National Research Foundation of Korea (NRF) funded by the Korean Government (MEST) (No. 2020R1A2B5B0300269711). This work was supported by the Korea Medical Device Development Fund grant funded by the Korea Government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health & Welfare, the Ministry of Food and Drug Safety) (Nos 9991006750 and KMDF_PR_20200901_0077), (Nos. 1711138098 and KMDF_PR_20200901_0077). This work was also supported by the Brain Korea 21 FOUR Project funded by the National Research Foundation (NRF) of Korea, Yonsei University College of Nursing (No. F21JB7504007) and a grant of the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (Grant No. HI19C1344). M.D.D. thanks support from the NSF ASSIST Center (No. EEC-1160483).

Publisher Copyright:
© 2022 Author(s).

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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