Electromechanical stability of buckled thin metal films on elastomer

Donyoung Kim; Hyun Sik Hwang; Dahl Young Khang

doi:10.1016/j.tsf.2011.03.042

Electromechanical stability of buckled thin metal films on elastomer

Donyoung Kim, Hyun Sik Hwang, Dahl Young Khang

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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 language	English
Pages (from-to)	5511-5515
Number of pages	5
Journal	Thin Solid Films
Volume	519
Issue number	16
DOIs	https://doi.org/10.1016/j.tsf.2011.03.042
Publication status	Published - 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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title = "Electromechanical stability of buckled thin metal films on elastomer",

abstract = "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.",

author = "Donyoung Kim and Hwang, {Hyun Sik} and Khang, {Dahl Young}",

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) .",

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AU - Kim, Donyoung

AU - Hwang, Hyun Sik

AU - Khang, Dahl Young

N1 - 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) .

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N2 - 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.

AB - 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.

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Electromechanical stability of buckled thin metal films on elastomer

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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