Actuating and Sensing Properties of Nanoporous Gold

E. Detsi, Z. G. Chen, W. P. Vellinga, P. R. Onck, J. T. M. De Hosson*

*Bijbehorende auteur voor dit werk

Onderzoeksoutput: ArticleAcademicpeer review

40 Citaten (Scopus)


We show that variations in the relative humidity give rise to reversible macroscopic dimensional changes in nanoporous gold exposed to ambient air. The macroscopic strain is the consequence of changes in the nanoporous gold surface stress. We have measured reversible strain amplitudes up to 0.02% in response to a 15% change in relative humidity. The direct conversion into mechanical work of the energy involved in the liquid to vapor phase transition of water is attractive for environmentally friendly short-stroke actuator and sensor applications.

Originele taal-2English
Pagina's (van-tot)4951-4955
Aantal pagina's5
TijdschriftJournal of Nanoscience and Nanotechnology
Nummer van het tijdschrift6
StatusPublished - jun-2012

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