Electrochemical Crystallization of Plasmonic Nanostructures

We show how gold recrystallizes when under the influence of electrochemical potentials. This “cold annealing” occurs without charge transfer reactions and preserves nanoscale structural features. By performing the process on plasmonic nanostructures, grain growth is monitored noninvasively by optica...

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Veröffentlicht in:Nano letters Jg. 11; H. 3; S. 1337 - 1343
Hauptverfasser: Dahlin, Andreas B, Sannomiya, Takumi, Zahn, Raphael, Sotiriou, Georgios A, Vörös, Janos
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Washington, DC American Chemical Society 09.03.2011
Schlagworte:
Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science; rheology
Crystallization
Electrochemistry - methods
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties
Materials science
Methods of nanofabrication
Microscopy, Atomic Force
Microscopy, Electron, Scanning
Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
Nanostructures
Physics
Structure of solids and liquids; crystallography
Surface and interface electron states
Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)
gold
grain
electrochemistry
plasmon
Crystal
Gold
Annealing
Grain growth
Crystallization
Nanostructures
Relaxation time
Nanometer scale
Calcium nitride
Plasmons
Resonance
Charge transfer
Nanomaterial synthesis
Crystal structure
ISSN:1530-6984, 1530-6992, 1530-6992
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:We show how gold recrystallizes when under the influence of electrochemical potentials. This “cold annealing” occurs without charge transfer reactions and preserves nanoscale structural features. By performing the process on plasmonic nanostructures, grain growth is monitored noninvasively by optical spectroscopy. In this way, the influence from crystal structure on plasmon resonances can be investigated independently. Observed spectral changes are in excellent agreement with analytical models and changes in electron relaxation time and plasma frequency are calculated.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1530-6984
1530-6992
1530-6992
DOI:10.1021/nl104424q