Skip to main navigation Skip to search Skip to main content

Large strain deformation and cracking of nano-scale gold films on PDMS substrate

  • Onobu Akogwu
  • , David Kwabi
  • , Swaminadham Midturi
  • , Marcus Eleruja
  • , Babaniyi Babatope
  • , W. O. Soboyejo
  • Princeton University
  • University of Arkansas at Little Rock
  • Obafemi Awolowo University
  • Engineering Materials Development Institute

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

This paper presents the results of an experimental study of large strain tensile and cyclic damage in nano-scale gold (Au) thin films that were electron-beam deposited onto a 1mm thick polymeric substrate of poly-di-methyl-siloxane (PDMS). The effects of Au film thickness are examined for films with thicknesses of 50, 75 and 100 nm. Large strain deformation (up to 100%) is shown to give rise to grain boundary cracking that results in significant changes in film resistance under monotonic and cyclic loading. The implications of the results are discussed for development of flexible electronic structures.

Original languageEnglish
Pages (from-to)32-40
Number of pages9
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume170
Issue number1-3
DOIs
StatePublished - Jun 15 2010

Keywords

  • Flexible electronics
  • Grain boundary cracking
  • Large strain deformation
  • Resistance changes
  • Tensile and cyclic damage

Fingerprint

Dive into the research topics of 'Large strain deformation and cracking of nano-scale gold films on PDMS substrate'. Together they form a unique fingerprint.

Cite this