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 › peer-review

14 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

Bibliographical note

Funding Information:
H. Jiang acknowledges the support from the National Science Foundation under Grant No. DMI-0328162. D.-Y. Khang acknowledges financial support from the Yonsei University Research Fund of 2008, and “System IC 2010” project of Korea Ministry of Commerce, Industry and Economy.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1116/1.3089244

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

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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