Nonsinusoidal buckling of thin gold films on elastomeric substrates

Huiyang Fei; Hanqing Jiang; Dahl Young Khang

doi:10.1116/1.3089244

Nonsinusoidal buckling of thin gold films on elastomeric substrates

Huiyang Fei, Hanqing Jiang, Dahl Young Khang

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	L9-L13
Journal	Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume	27
Issue number	3
DOIs	https://doi.org/10.1116/1.3089244
Publication status	Published - 2009 May 18

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

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Fei, H., Jiang, H., & Khang, D. Y. (2009). Nonsinusoidal buckling of thin gold films on elastomeric substrates. Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, 27(3), L9-L13. https://doi.org/10.1116/1.3089244

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