Ultrafast energy transfer of silver ultrafine particles in aqueous solutions as investigated by the ultrafast lensing effect technique

Kazuki Ito, Isao Tsuyumoto, Akira Harata, Tsuguo Sawada

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    Abstract

    Ultrafast relaxation dynamics of silver ultrafine particles in aqueous solutions was measured by an ultrafast lensing effect (ULE) method using two types of samples with SDS (sodium dodecyl sulfate) and without SDS. The fit to the ULE time evolution required three exponential components: one for the increase and two others for the decrease. The time constants were estimated as 1, 3, 7 ps for the sample without SDS and as 1, 2, and 23 ps for the sample with SDS. The ultrafast relaxation dynamics was discussed in connection with the behavior of photoexcited electrons.

    Original languageEnglish
    Pages (from-to)1-6
    Number of pages6
    JournalChemical Physics Letters
    Volume318
    Issue number1-3
    DOIs
    Publication statusPublished - Feb 18 2000

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    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)
    • Physical and Theoretical Chemistry

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