Scanning force microscopy study of methanol-induced changes in the distribution of silver particles in colloidal metal films

Wolfgang Fritzsche; Jürgen Symanzik; Konstantin Sokolov; Therese M. Cotton; Eric Henderson

doi:10.1006/jcis.1996.4587

Scanning force microscopy study of methanol-induced changes in the distribution of silver particles in colloidal metal films

Wolfgang Fritzsche, Jürgen Symanzik, Konstantin Sokolov, Therese M. Cotton, Eric Henderson

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Colloidal silver particles were attached to a solid surface for use as a substrate for surface-enhanced Raman scattering and surface enhanced fluorescence spectroscopies. The enhancement of Raman scattering is dramatically increased after exposure of the substrates to methanol solution. Scanning force microscopy was used to visualize the substrate before and after the methanol treatment, and a statistical evaluation of the particle distribution revealed some differences. The nearest-neighbor distance was decreased after the exposure to methanol. This effect suggests that an aggregation of the particles occurred. This aggregation is probably based on increased attractive interactions and lateral mobility of the particles in methanol.

Original language	English (US)
Pages (from-to)	466-472
Number of pages	7
Journal	Journal of Colloid and Interface Science
Volume	185
Issue number	2
DOIs	https://doi.org/10.1006/jcis.1996.4587
State	Published - Jan 15 1997
Externally published	Yes

Keywords

Aggregation
Atomic force microscopy
Colloidal metal films
Nearest-neighbor distances
Silver particles
Spatial arrangement of circles

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Colloid and Surface Chemistry

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10.1006/jcis.1996.4587

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title = "Scanning force microscopy study of methanol-induced changes in the distribution of silver particles in colloidal metal films",

abstract = "Colloidal silver particles were attached to a solid surface for use as a substrate for surface-enhanced Raman scattering and surface enhanced fluorescence spectroscopies. The enhancement of Raman scattering is dramatically increased after exposure of the substrates to methanol solution. Scanning force microscopy was used to visualize the substrate before and after the methanol treatment, and a statistical evaluation of the particle distribution revealed some differences. The nearest-neighbor distance was decreased after the exposure to methanol. This effect suggests that an aggregation of the particles occurred. This aggregation is probably based on increased attractive interactions and lateral mobility of the particles in methanol.",

keywords = "Aggregation, Atomic force microscopy, Colloidal metal films, Nearest-neighbor distances, Silver particles, Spatial arrangement of circles",

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note = "Funding Information: This work was supported by the German Academic Exchange Service. Journal Paper No. J-17022 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Project No. 3064.",

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AU - Symanzik, Jürgen

AU - Sokolov, Konstantin

AU - Cotton, Therese M.

AU - Henderson, Eric

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AB - Colloidal silver particles were attached to a solid surface for use as a substrate for surface-enhanced Raman scattering and surface enhanced fluorescence spectroscopies. The enhancement of Raman scattering is dramatically increased after exposure of the substrates to methanol solution. Scanning force microscopy was used to visualize the substrate before and after the methanol treatment, and a statistical evaluation of the particle distribution revealed some differences. The nearest-neighbor distance was decreased after the exposure to methanol. This effect suggests that an aggregation of the particles occurred. This aggregation is probably based on increased attractive interactions and lateral mobility of the particles in methanol.

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KW - Nearest-neighbor distances

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KW - Spatial arrangement of circles

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Scanning force microscopy study of methanol-induced changes in the distribution of silver particles in colloidal metal films

Abstract

Keywords

ASJC Scopus subject areas

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