Specifics of Substrate-Mediated Photo-Induced Chemical Processes on Supported nm-Sized Metal Particles Full article
Journal |
Journal of Physics Condensed Matter
ISSN: 0953-8984 , E-ISSN: 1361-648X |
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Output data | Year: 2004, Volume: 16, Number: 39, Pages: 7131-7141 Pages count : 11 DOI: 10.1088/0953-8984/16/39/044 | ||||
Tags | Adsorption; Catalysts; Electron scattering; Laser pulses; Lattice constants; Light absorption; Phonons; Single crystals; Substrates | ||||
Authors |
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Affiliations |
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Funding (1)
1 | Stiftelsen för strategisk forskning |
Abstract:
Substrate-mediated mechanism of photochemical reactions on metals includes direct and/or plasmon-related excitation of electron–hole pairs in the bulk by photons and subsequent chemical transformation due to interaction of excited (hot) electrons (or holes) with the adsorbate. In nm-sized metal particles, the excited electrons are confined. We show in detail that this factor is beneficial for photochemistry under low-intensity steady-state conditions (linear regime) and also during intensive sub-ps laser pulses (non-linear regime). In both cases, the confinement may increase the contribution of secondary hot electrons to the photochemical conversion. In addition, in the non-linear regime the decrease of electron temperature after heating may be much slower than that on the surfaces of bulk samples and accordingly photochemical reactions may be more probable.
Cite:
Zhdanov V.P.
, Kasemo B.
Specifics of Substrate-Mediated Photo-Induced Chemical Processes on Supported nm-Sized Metal Particles
Journal of Physics Condensed Matter. 2004. V.16. N39. P.7131-7141. DOI: 10.1088/0953-8984/16/39/044 WOS Scopus РИНЦ
Specifics of Substrate-Mediated Photo-Induced Chemical Processes on Supported nm-Sized Metal Particles
Journal of Physics Condensed Matter. 2004. V.16. N39. P.7131-7141. DOI: 10.1088/0953-8984/16/39/044 WOS Scopus РИНЦ
Dates:
Submitted: | Jun 1, 2004 |
Published online: | Sep 17, 2004 |
Published print: | Oct 6, 2004 |
Identifiers:
Web of science | WOS:000224768700047 |
Scopus | 2-s2.0-5744232483 |
Elibrary | 13451255 |
Chemical Abstracts | 2004:888184 |
Chemical Abstracts (print) | 142:65147 |
OpenAlex | W2008350766 |