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Joonhwa Choi(최준화),Phillip-Won(원필립),Seung Hwan Ko(고승환) 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.11
Recent research advances that relieve discomfort between electronic devices and the human body include the snakelike wavy design, ultra-thin and special properties of nanomaterials. However, these strategies each involve inevitable limitations to achieve optimistic form of e-skin devices. Evenly matched mechanical properties anywhere in the body and the non-recognition of electronic devices are two properties essential for future electronic skin (E-skin) devices. But achieving these two main properties at the same time is still a difficult task. Accordingly, the present inventors propose a new manufacturing method for introducing a kirigami approach for patterning highly conductive and transparent electrodes in various forms of stretchable electronic devices having multivariate configurability for E-skin applications. This kirigami pattern can be designed to intentionally limit strain or impart ultrastretchability, depending on the application in the range of 0 to 400% of tensile strain, which gives the electrode an adjustable elasticity, invariant electrical property against strain, and excellent strain reversibility. The versatility of this work is demonstrated by ultrastretch transparent Kirigami heaters for personal thermal management and epidermal transparent Kirigami electrophysiology sensors.