Electromechanical stability of buckled thin metal films on elastomer

Donyoung Kim, Hyun Sik Hwang, Dahl Young Khang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Oxidizable metals such as Al are found to become highly resistive when exposed to air in buckled state, > 10× resistance increase compared to that in flat configuration. On the other hand, noble metal and oxide conductor films, such as Au and indium tin oxide show negligible resistance increase. The enhanced oxidation of grain boundaries that are exposed to air when buckled is found to be responsible for the observed electromechanical stability. Simple yet effective method, i.e., thin capping layer of noble metal, to prevent the oxidation of non-noble metal is proposed and experimentally verified.

Original languageEnglish
Pages (from-to)5511-5515
Number of pages5
JournalThin Solid Films
Issue number16
Publication statusPublished - 2011 Jun 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation (KRF) grant funded by the Korean government (MEST) ( 2009-0069209 ), WCU (World Class University) program ( R32-20031 ), and the Korea Institute of Machinery and Materials (KIMM) .

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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