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Ultrafast Dynamics of Plasmon-Mediated Charge Transfer in Ag@CeO2 Studied by Free Electron Laser Time-Resolved X-ray Absorption Spectroscopy

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  • معلومة اضافية
    • Contributors:
      Cresi J.S.P.; Principi E.; Spurio E.; Catone D.; O'Keeffe P.; Turchini S.; Benedetti S.; Vikatakavi A.; D'Addato S.; Mincigrucci R.; Foglia L.; Kurdi G.; Nikolov I.P.; de Ninno G.; Masciovecchio C.; Nannarone S.; Kesavan J.K.; Boscherini F.; Luches P.
    • بيانات النشر:
      American Chemical Society (ACS), 2021.
    • الموضوع:
      2021
    • نبذة مختصرة :
      Expanding the activity of wide bandgap semiconductors from the UV into the visible range has become a central goal for their application in green solar photocatalysis. The hybrid plasmonic/semiconductor system, based on silver nanoparticles (Ag NPs) embedded in a film of CeO2, is an example of a functional material developed with this aim. In this work, we take advantage of the chemical sensitivity of free electron laser (FEL) time-resolved soft X-ray absorption spectroscopy (TRXAS) to investigate the electron transfer process from the Ag NPs to the CeO2 film generated by the NPs plasmonic resonance photoexcitation. Ultrafast changes (
    • File Description:
      STAMPA
    • ISSN:
      1530-6992
      1530-6984
    • الرقم المعرف:
      10.1021/acs.nanolett.0c04547
    • Rights:
      OPEN
    • الرقم المعرف:
      edsair.doi.dedup.....8bc7ad6ae3f9f2ea3ae196d38e1f3e08