Biodegradable Thin Metal Foils and Spin‐On Glass Materials for Transient Electronics |
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| Authors: | Seung‐Kyun Kang Suk‐Won Hwang Sooyoun Yu Jung‐Hun Seo Elise A. Corbin Jiho Shin Dae Seung Wie Rashid Bashir Zhenqiang Ma John A. Rogers |
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| Affiliation: | 1. Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana‐Champaign, Urbana, IL, USA;2. KU‐KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Korea;3. Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana‐Champaign, Urbana, IL, USA;4. Department of Electrical and Computer Engineering, University of Wisconsin‐Madison, Madison, WI, USA;5. Department of Bioengineering, University of Illinois at Urbana‐Champaign, Urbana, IL, USA;6. Department of Chemistry Mechanical Science and Engineering, and Department of Electrical and Computer Engineering, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana‐Champaign, Urbana, IL, USA |
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| Abstract: | Biodegradable substrates and encapsulating materials play critical roles in the development of an emerging class of semiconductor technology, generally referred as “transient electronics”, whose key characteristic is an ability to dissolve completely, in a controlled manner, upon immersion in ground water or biofluids. The results presented here introduce the use of thin foils of Mo, Fe, W, or Zn as biodegradable substrates and silicate spin‐on‐glass (SOG) materials as insulating and encapsulating layers, with demonstrations of transient active (diode and transistor) and passive (capacitor and inductor) electronic components. Complete measurements of electrical characteristics demonstrate that the device performance can reach levels comparable to those possible with conventional, nontransient materials. Dissolution kinetics of the foils and cytotoxicity tests of the SOG yield information relevant to use in transient electronics for temporary biomedical implants, resorbable environmental monitors, and reduced waste consumer electronics. |
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| Keywords: | biodegradable materials biodegradable metal foils degradable metal substrates spin‐on glass transient electronics |
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