Post on 12-Jan-2016
Photo-Induced Au versus Ag Deposition on Periodically Poled Lithium Niobate: Concentration Dependence
Veronica MeeksAnna Zaniewski, Brandon Palafox,
Robert Nemanich
Arizona Space Grant SymposiumApril 18th 2015
Motivation
• High demand for metal nanostructures• Unique electrical and optical properties • Utilizing new technique of depositing gold
nanoparticles onto periodically poled lithium niobate (PPLN) using ultraviolet (UV) light
Production
Analysis
Results
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Series1
Ave
rage
Dia
met
er (n
m)
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ber o
f Par
ticl
es P
er u
m^2
Interpretation
Gold Ion Reduction:
Silver Ion Reduction: €
[AuCl4 ]− + 3e−→ Au + 4Cl−
€
Ag+ + e−→ Ag
Next Steps
• Looking into the physics of the gold concentration graph
• Analyze deposition patterns of other metal solutions such as copper
Acknowledgments
• In collaboration with Anna Zaniewski, Robert Nemanich, Brandon Palafox
• Funding from ASU/NASA Space Grant Program and the National Science Foundation