Nonsinusoidal buckling of thin gold films on elastomeric substrates

Huiyang Fei, Hanqing Jiang, Dahl Young Khang

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Buckling of stiff thin films on compliant substrates represents a variety of applications, ranging from stretchable electronics to micro-nanometrology. Different but complementary to previously reported sinusoidal buckling waves, this letter presents a nonsinusoidal surface profile of buckled thin Au films on compliant substrates, specifically, a secondary dip on top of buckling wave or rather broadened wave top with very sharp trough. This nonsinusoidal profile is likely due to tension/compression asymmetry, i.e., different strengths in tension and compression resulted from the polycrystalline, grained microstructure of metal film. Finite element analysis with asymmetric tension/compression material model has reproduced the experiments well qualitatively.

Original languageEnglish
Pages (from-to)L9-L13
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume27
Issue number3
DOIs
Publication statusPublished - 2009 May 18

Fingerprint

buckling
Gold
Buckling
gold
Substrates
Thin films
thin films
profiles
troughs
metal films
Compaction
Electronic equipment
Metals
asymmetry
Finite element method
microstructure
Microstructure
electronics
elastomeric
Experiments

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

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abstract = "Buckling of stiff thin films on compliant substrates represents a variety of applications, ranging from stretchable electronics to micro-nanometrology. Different but complementary to previously reported sinusoidal buckling waves, this letter presents a nonsinusoidal surface profile of buckled thin Au films on compliant substrates, specifically, a secondary dip on top of buckling wave or rather broadened wave top with very sharp trough. This nonsinusoidal profile is likely due to tension/compression asymmetry, i.e., different strengths in tension and compression resulted from the polycrystalline, grained microstructure of metal film. Finite element analysis with asymmetric tension/compression material model has reproduced the experiments well qualitatively.",
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Nonsinusoidal buckling of thin gold films on elastomeric substrates. / Fei, Huiyang; Jiang, Hanqing; Khang, Dahl Young.

In: Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, Vol. 27, No. 3, 18.05.2009, p. L9-L13.

Research output: Contribution to journalArticle

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