Sticking Coefficients of Silver on Metal and Oxide Substrates from 20 to 575 °C

Benck, Ralph F.; Crisco, Carl; Spies, H

doi:10.1116/1.1318064

Cited by 10 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the initial interface between the plasmonic structure and the overlayer was a metal/metal (Ag/Al) interface rather than a metal/oxide (Ag/Al 2 O 3 ) interface. We conjecture that this leads to a stronger interface than one would be able to achieve if the aluminum oxide were directly deposited onto the silver . In any case, the adhesion between silver and the protective coating achieved is sufficient for the protective layer to stay attached to the underlying metal even under mechanical stress.…”

Section: Resultsmentioning

confidence: 98%

Protecting TERS probes from degradation: extending mechanical and chemical stability

Agapov

Sokolov

Foster

2013

J Raman Spectroscopy

View full text Add to dashboard Cite

The detailed surface chemistry of aluminum oxide protected silver films for use specifically in surface enhanced Raman spectroscopy and tip enhanced Raman spectroscopy (TERS) was investigated. We have demonstrated that increased storage and scanning use lifetimes for silver plasmonic structures are directly connected with the elimination of chemical degradation at the plasmonic structure surface. X‐ray photoelectron spectroscopy of the metal films confirmed that a 2–3 nm thick coating of aluminum oxide prevented chemical attack of the underlying silver film for three months of storage in a desiccator, significantly increasing the storage lifetime of current probes. The scanning lifetime of a TERS probe when used to image a hard patterned silicon substrate was doubled with the addition of this protective coating. These measurements were performed without laser illumination in order to separate laser‐induced heating degradation from pure mechanical degradation of the metallized probe currently encountered during TERS data collection. Copyright © 2013 John Wiley & Sons, Ltd.

show abstract

Section: Resultsmentioning

confidence: 98%

Protecting TERS probes from degradation: extending mechanical and chemical stability

Agapov

Sokolov

Foster

2013

J Raman Spectroscopy

View full text Add to dashboard Cite

show abstract

“…The aluminum oxide is formed after the interface with the silver is formed, and metal-to-metal adhesion is typically better than metal-to-oxide adhesion. 32 The detailed structure of the interface or interphase next to silver after the aluminum has oxidized remains to be elucidated.…”

Section: Resultsmentioning

confidence: 99%

Highly Stable, Protected Plasmonic Nanostructures for Tip Enhanced Raman Spectroscopy

et al. 2009

View full text Add to dashboard Cite

An ultrathin aluminum oxide (Al 2 O 3 ) coating improves significantly the stability of plasmonic structures used in tip enhanced Raman spectroscopy (TERS). The coating does not alter the favorable optical properties of metallic structures yet improves wear resistance and inhibits degradation, so that signal enhancement remains constant over 40 days for structures with a 3 nm thick protective coating. Most unprotected structures show substantial losses in enhancement over periods as short as 10 days when stored and used in ambient conditions.

show abstract

“…For example, Benck et al (16) reported the sticking of Ag deposited on some oxides as a function of the substrate temperature. It is interesting to note that the significant amount of Ag was deposited at glancing angles in their experimental set up.…”

Section: Effects Of Local Deposition Geometry On Growth Of Nanowhiskersmentioning

confidence: 98%

Growth of Metal Nanowhiskers on Patterned Substrate by High-Temperature Glancing Angle Deposition

Suzuki¹,

Hara²,

Kita³

et al. 2009

ECS Trans.

View full text Add to dashboard Cite

In this study, we carry out high-temperature glancing angle deposition (HT-GLAD) of Fe and Al on a heated substrate with trench patterns. When vapor is incident perpendicular to the trench direction, nanowhiskers grow only on the surface exposed to the vapor and not inside the trenches. On the other hand, when vapor is incident at a glancing angle on the sidewall of the trench and not on the substrate surface, nanowhiskers grow only on the sidewall, since the condition of deposition at high temperature and a glancing angle is satisfied only for the sidewall. Thus, we succeed the selective growth of nanowhiskers by controlling the geometrical deposition conditions. Further, we also discuss the effect of the local deposition geometry on the growth process. Geometrically selective growth by HT-GLAD is expected to be useful for growing nanowhiskers on nano- and microstructured substrates.

show abstract

Sticking Coefficients of Silver on Metal and Oxide Substrates from 20 to 575 °C

Cited by 10 publications

References 0 publications

Protecting TERS probes from degradation: extending mechanical and chemical stability

Protecting TERS probes from degradation: extending mechanical and chemical stability

Highly Stable, Protected Plasmonic Nanostructures for Tip Enhanced Raman Spectroscopy

Growth of Metal Nanowhiskers on Patterned Substrate by High-Temperature Glancing Angle Deposition

Contact Info

Product

Resources

About