Metal-coated colloidal crystal film as surface-enhanced Raman scattering substrate

Shoichi Kubo; Zhong Ze Gu; Donald A. Tryk; Yoshihisa Ohko; Osamu Sato; Akira Fujishima

doi:10.1021/la020176+

Metal-coated colloidal crystal film as surface-enhanced Raman scattering substrate

Shoichi Kubo, Zhong Ze Gu, Donald A. Tryk, Yoshihisa Ohko, Osamu Sato, Akira Fujishima

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

53 Citations (Scopus)

Abstract

A dipping technique was developed to coat colloidal crystal films with metals. It was found that nanosized metallic particles could be simply immobilized onto the monodisperse spheres in the colloidal crystal film. As one of the application of such films, silver-coated colloidal crystal films were used as the surface-enhanced Raman scattering substrates. Very large enhancements were observed. In addition, it was also found that the enhancement factor varies very little from place to place on a particular substrate and even on different substrates. It can be anticipated that such substrates will find wide applications in Raman analysis and Raman imaging.

Original language	English
Pages (from-to)	5043-5046
Number of pages	4
Journal	Langmuir
Volume	18
Issue number	13
DOIs	https://doi.org/10.1021/la020176+
Publication status	Published - 2002 Jun 25

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la020176+

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AU - Gu, Zhong Ze

AU - Tryk, Donald A.

AU - Ohko, Yoshihisa

AU - Sato, Osamu

AU - Fujishima, Akira

PY - 2002/6/25

Y1 - 2002/6/25

N2 - A dipping technique was developed to coat colloidal crystal films with metals. It was found that nanosized metallic particles could be simply immobilized onto the monodisperse spheres in the colloidal crystal film. As one of the application of such films, silver-coated colloidal crystal films were used as the surface-enhanced Raman scattering substrates. Very large enhancements were observed. In addition, it was also found that the enhancement factor varies very little from place to place on a particular substrate and even on different substrates. It can be anticipated that such substrates will find wide applications in Raman analysis and Raman imaging.

AB - A dipping technique was developed to coat colloidal crystal films with metals. It was found that nanosized metallic particles could be simply immobilized onto the monodisperse spheres in the colloidal crystal film. As one of the application of such films, silver-coated colloidal crystal films were used as the surface-enhanced Raman scattering substrates. Very large enhancements were observed. In addition, it was also found that the enhancement factor varies very little from place to place on a particular substrate and even on different substrates. It can be anticipated that such substrates will find wide applications in Raman analysis and Raman imaging.

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Metal-coated colloidal crystal film as surface-enhanced Raman scattering substrate

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