Femtochemistry at Pt/aqueous solution interfaces as observed by transient reflectivity measurements

Akihide Hibara; Akira Harata; Tsuguo Sawada

doi:10.1016/S0009-2614(97)00496-X

Femtochemistry at Pt/aqueous solution interfaces as observed by transient reflectivity measurements

Akihide Hibara, Akira Harata, Tsuguo Sawada

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

11 Citations (Scopus)

Abstract

Photo-induced ultrafast responses of a polycrystalline Pt thin-film immersed in aqueous solutions were investigated by transient reflectivity measurements. Solvent dependence was observed to relate to the affinities solute anions had towards the metal surface. Numerical analysis showed a previously unknown relaxation component having a relaxation time of 20 fs. The experimental results were discussed in terms of an interface reaction between adsorbed solute anions and photoexcited electrons in the Pt film.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Chemical Physics Letters
Volume	272
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(97)00496-X
Publication status	Published - Jun 20 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Access to Document

10.1016/S0009-2614(97)00496-X

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abstract = "Photo-induced ultrafast responses of a polycrystalline Pt thin-film immersed in aqueous solutions were investigated by transient reflectivity measurements. Solvent dependence was observed to relate to the affinities solute anions had towards the metal surface. Numerical analysis showed a previously unknown relaxation component having a relaxation time of 20 fs. The experimental results were discussed in terms of an interface reaction between adsorbed solute anions and photoexcited electrons in the Pt film.",

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AU - Sawada, Tsuguo

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AB - Photo-induced ultrafast responses of a polycrystalline Pt thin-film immersed in aqueous solutions were investigated by transient reflectivity measurements. Solvent dependence was observed to relate to the affinities solute anions had towards the metal surface. Numerical analysis showed a previously unknown relaxation component having a relaxation time of 20 fs. The experimental results were discussed in terms of an interface reaction between adsorbed solute anions and photoexcited electrons in the Pt film.

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