Biphasic Metal Films: Intrinsically Stretchable Biphasic (Solid-Liquid) Thin Metal Films (Adv. Mater. 22/2016)

Arthur Hirsch; Hadrien O Michaud; Aaron P Gerratt; Séverine de Mulatier; Stéphanie P Lacour

doi:10.1002/adma.201670153

Biphasic Metal Films: Intrinsically Stretchable Biphasic (Solid-Liquid) Thin Metal Films (Adv. Mater. 22/2016)

Adv Mater. 2016 Jun;28(22):4506. doi: 10.1002/adma.201670153.

Authors

Arthur Hirsch¹, Hadrien O Michaud¹, Aaron P Gerratt¹, Séverine de Mulatier¹, Stéphanie P Lacour¹

Affiliation

¹ Bertarelli Foundation Chair in Neuroprosthetic Technology, Laboratory for Soft Bioelectronic Interfaces, Institute of Microengineering, Institute of Bioengineering, Centre for Neuroprosthetics, École Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland.

PMID: 27273441
DOI: 10.1002/adma.201670153

Abstract

On page 4507, S. P. Lacour and co-workers present highly conductive and stretchable solid-liquid films that are formed by physical vapor deposition of gallium onto an alloying gold layer. The image shows patterns defined by lift-off on an elastomer membrane. The magnified view is a false-color scanning electron microscopy (SEM) image (×5000) of the surface of the films under 50% applied strain, showing the liquid Ga (blue-gray) flowing between the AuGa2 /Ga clusters (gold).

Keywords: elasticity; elastomers; electrical conductivity; liquid metals; thin metal films.