PUBLICATION

Bio-integrated Electronics Lab.

Publication Highlight

2021 Instant, multiscale dry transfer printing by atomic diffusion control at heterogeneous interfaces

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작성자 최고관리자 작성일 21-10-25 17:31

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Author
Seungkyoung Heo, Jeongdae Ha, Sook Jin Son, In Sun Choi, Hyeokjun Lee, Saehyuck Oh, Janghwan Jekal, Min Hyung Kang, Gil Ju Lee, Han Hee Jung, Junwoo Yea, Taeyoon Lee, Youngjeon Lee, Ji-Woong Choi, Sheng Xu, Joon Ho Choi, Jae-Woong Jeong, Young Min Song, J
Journal
Science advances
Vol
Vol 7, Issue 28
Page
2375-2548
Year
2021
DOI
https://www.science.org/doi/epdf/10.1126/sciadv.abh0040

Abstract

Transfer printing is a technique that integrates heterogeneous materials by readily retrieving functional elements from a grown substrate and subsequently printing them onto a specific target site. These strategies are broadly exploited to construct heterogeneously integrated electronic devices. A typical wet transfer printing method exhibits limitations related to unwanted displacement and shape distortion of the device due to uncontrollable fluid movement and slow chemical diffusion. In this study, a dry transfer printing technique that allows reliable and instant release of devices by exploiting the thermal expansion mismatch between adjacent materials is demonstrated, and computational studies are conducted to investigate the fundamental mechanisms of the dry transfer printing process. Extensive exemplary demonstrations of multiscale, sequential wet-dry, circuit-level, and biological topography-based transfer printing demonstrate the potential of this technique for many other emerging applications in modern electronics that have not been achieved through conventional wet transfer printing over the past few decades.