MyJournals Home  

RSS FeedsMaterials, Vol. 12, Pages 2305: Fabrication of Porous Gold Film Using Graphene Oxide as a Sacrificial Layer (Materials)

 
 

18 july 2019 22:00:47

 
Materials, Vol. 12, Pages 2305: Fabrication of Porous Gold Film Using Graphene Oxide as a Sacrificial Layer (Materials)
 


An original and simple fabrication process to produce thin porous metal films on selected substrates is reported. The fabrication process includes the deposition of a thin layer of gold on a substrate, spin coating of a graphene oxide dispersion, etching the gold film through the graphene oxide layer, and removing the graphene oxide layer. The porosity of the thin gold film is controlled by varying the etching time, the thickness of the gold film, and the concentration of the graphene oxide dispersion. Images by scanning electron and metallurgical microscopes show a continuous gold film with random porosity formed on the substrate with a porosity size ranging between hundreds of nanometers to tens of micrometers. This general approach enables the fabrication of porous metal films using conventional microfabrication techniques. The proposed process is implemented to fabricate electrodes with patterned porosity that are used in a microfluidic system to manipulate living cells under dielectrophoresis. Porous electrodes are found to enhance the magnitude and spatial distribution of the dielectrophoretic force.


 
164 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 19, Pages 3161: Joint Assimilation of Leaf Area Index and Soil Moisture from Sentinel-1 and Sentinel-2 Data into the WOFOST Model for Winter Wheat Yield Estimation (Sensors)
Materials, Vol. 12, Pages 2304: Desiccant Films Made of Low-Density Polyethylene with Dispersed Silica Gel--Water Vapor Absorption, Permeability (H2O, N2, O2, CO2), and Mechanical Properties (Materials)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics


Copyright © 2008 - 2024 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten