Dissolvable metals for transient electronics

Lan Yin, Huanyu Cheng, Shimin Mao, Richard Haasch, Yuhao Liu, Xu Xie, Suk Won Hwang, Harshvardhan Jain, Seung Kyun Kang, Yewang Su, Rui Li, Yonggang Huang, John A. Rogers*

*Corresponding author for this work

Research output: Contribution to journalArticle

175 Scopus citations

Abstract

Reactive dissolution and its effects on electrical conduction, morphological change and chemical transformation in thin films of Mg, AZ31B Mg alloy, Zn, Fe, W, and Mo in de-ionized (DI) water and simulated body fluids (Hanks' solution pH 5-8) are systematically studied, to assess the potential for use of these metals in water-soluble, that is, physically transient, electronics. The results indicate that the electrical dissolution rates in thin films can be much different that traditionally reported corrosion rates in corresponding bulk materials. Silicon metal oxide field effect transistors (MOSFETs) built with these metals demonstrate feasibility for use in transient electronics. Effects of reactive dissolution on electrical conduction, morphological change, and chemical transformation of biodegradable metal thin films (Mg, Zn, W, Mo, and Fe) are studied, for application of these metals in water-soluble transient electronic devices. Feasibility of using these dissolvable metals as contacts for n-channel silicon metal oxide field effect transistors (MOSFETs) is also demonstrated.

Original languageEnglish (US)
Pages (from-to)645-658
Number of pages14
JournalAdvanced Functional Materials
Volume24
Issue number5
DOIs
StatePublished - Feb 5 2014

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Keywords

  • biodegradable metals
  • dissolution
  • magnesium
  • molybdenum
  • transient electronics

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Yin, L., Cheng, H., Mao, S., Haasch, R., Liu, Y., Xie, X., Hwang, S. W., Jain, H., Kang, S. K., Su, Y., Li, R., Huang, Y., & Rogers, J. A. (2014). Dissolvable metals for transient electronics. Advanced Functional Materials, 24(5), 645-658. https://doi.org/10.1002/adfm.201301847