Controlling the morphology of gold films on poly(dimethylsiloxane)

Oliver Graudejus, Patrick Görrn, Sigurd Wagner

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

Gold films on poly(dimethylsiloxane) (PDMS) have applications in stretchable electronics, tunable diffraction gratings, soft lithography and as neural interfaces. The electrical and optical properties of these films depend critically on the morphology of the gold. Therefore, we examine qualitatively and quantitatively the factors that affect the morphology of the gold film. Three morphologies can be produced controllably: microcracked, buckled, and smooth. Which morphology a gold film will adopt depends on the film stress and the growth mode of the film. The factors that affect the film stress and growth mode, and thus the morphology, are as follows: deposition temperature, film thickness, elastic modulus, adhesion layer thickness, surface properties of the PDMS, and mechanical prestrain applied during deposition. We discuss how the different components of the film stress and growth mode of the film affect the morphology.

Original languageEnglish (US)
Pages (from-to)1927-1933
Number of pages7
JournalACS Applied Materials and Interfaces
Volume2
Issue number7
DOIs
StatePublished - Jul 28 2010
Externally publishedYes

Fingerprint

Polydimethylsiloxane
Gold
baysilon
Diffraction gratings
Lithography
Surface properties
Film thickness
Electric properties
Electronic equipment
Adhesion
Optical properties
Elastic moduli

Keywords

  • flexible electronics
  • gold
  • stress elastomers
  • thin films

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Controlling the morphology of gold films on poly(dimethylsiloxane). / Graudejus, Oliver; Görrn, Patrick; Wagner, Sigurd.

In: ACS Applied Materials and Interfaces, Vol. 2, No. 7, 28.07.2010, p. 1927-1933.

Research output: Contribution to journalArticle

Graudejus, Oliver ; Görrn, Patrick ; Wagner, Sigurd. / Controlling the morphology of gold films on poly(dimethylsiloxane). In: ACS Applied Materials and Interfaces. 2010 ; Vol. 2, No. 7. pp. 1927-1933.
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