Atomically flat gold on elastomeric substrate

We present a procedure to fabricate extremely smooth Au films supported on thin elastomeric (PDMS) substrates. Minimum rms roughness and largest grain size are obtained using Si wafers, coated with native oxide and release layers, as templates for the growth of thermally evaporated Au films. The waf...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 22(2006), 10 vom: 09. Mai, Seite 4734-40
1. Verfasser: Atmaja, Bayu (VerfasserIn)
Weitere Verfasser: Frommer, Jane, Scott, J Campbell
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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245 1 0 |a Atomically flat gold on elastomeric substrate 
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520 |a We present a procedure to fabricate extremely smooth Au films supported on thin elastomeric (PDMS) substrates. Minimum rms roughness and largest grain size are obtained using Si wafers, coated with native oxide and release layers, as templates for the growth of thermally evaporated Au films. The wafers are held at a temperature of 300 degrees C during deposition. The Au films, up to 200 nm thick, are then transferred onto poly(dimethylsiloxane) substrates which have been previously surface-functionalized with a (3-mercaptopropyl)trimethoxysilane adhesion layer. The resulting Au films have been found by AFM to be extremely smooth with rms-roughness 2.5-4 angstroms and to exhibit a crystalline morphology with flat grains >500 nm in size. Thinner films, down to 20 nm, are grown at lower temperature and are comparably smooth, but with a loss in crystalline morphology. We compare the results of this optimized procedure with other gold films grown on mica sheets as templates and to those produced using Ti-O-Si interfacial chemistry 
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700 1 |a Frommer, Jane  |e verfasserin  |4 aut 
700 1 |a Scott, J Campbell  |e verfasserin  |4 aut 
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