Hot carrier generation in two-dimensional silver nanoparticle arrays at different excitation wavelengths under on-resonant conditions

Simple item page
dc.check.date2021-05-30
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorTakeuchi, Yuki
dc.contributor.authorViolas, Antoine
dc.contributor.authorFujita, Tetsuya
dc.contributor.authorKumamoto, Yasuaki
dc.contributor.authorModreanu, Mircea
dc.contributor.authorTanaka, Takuo
dc.contributor.authorFujita, Katsumasa
dc.contributor.authorTakeyasu, Nobuyuki
dc.contributor.funderHorizon 2020en
dc.date.accessioned2020-07-03T09:27:26Z
dc.date.available2020-07-03T09:27:26Z
dc.date.issued2020-05-30
dc.date.updated2020-07-03T09:16:23Z
dc.description.abstractWe evaluated the hot carrier generation in two-dimensional (2D) silver nanoparticle (AgNP) arrays under light illumination at different wavelengths, 458, 532, 671, and 785 nm. The 2D AgNP arrays were tailored to match the plasmon resonance to each excitation wavelength in order to fulfill the on-resonant condition. We selected para-aminothiophenol (p-ATP) as a probe molecule, which is chemically transformed into 4,4'-dimercaptoazobenzene (DMAB) upon light illumination. The reaction is driven by hot carriers emitted from a plasmonic surface. For evaluation of hot carrier generation, we monitored the chemical transformation from p-ATP into DMAB with surface-enhanced Raman scattering. The normalized Raman intensity of DMAB was plotted against the total exposure, where the peak intensity increased as the total exposure increased because of the increase of the number of DMAB molecules. The saturation of the peak growth was observed, indicating that the chemical transformation was completed, at different exposures for each wavelength. The total exposure required for completing the chemical transformation was smaller at 458 nm by at least ~105 times than that at 785 nm, although the difference of the photon energy was only 1.7 times. The growth of the Raman peak was related to the laser intensity as well, where the higher laser intensity showed a more rapid growth. These results indicated that more hot carriers with sufficient energy for the chemical transformation were generated at shorter excitation wavelengths as well as at higher laser intensities.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationTakeuchi, Y., Violas, A., Fujita, T., Kumamoto, Y., Modreanu, M., Tanaka, T., Fujita, K. and Takeyasu, N. (2020) 'Hot carrier generation in two-dimensional silver nanoparticle arrays at different excitation wavelengths under on-resonant conditions', Journal of Physical Chemistry C, 124(25), pp. 13936-13941. doi: 10.1021/acs.jpcc.0c04034en
dc.identifier.doi10.1021/acs.jpcc.0c04034en
dc.identifier.eissn1932-7455
dc.identifier.endpage13941en
dc.identifier.issn1932-7447
dc.identifier.issued25en
dc.identifier.journaltitleJournal of Physical Chemistry Cen
dc.identifier.startpage13936en
dc.identifier.urihttps://hdl.handle.net/10468/10205
dc.identifier.volume124en
dc.language.isoenen
dc.publisherACS Publicationsen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::RIA/899598/EU/Active Optical Phase-Change Plasmonic Transdimensional Systems Enabling Femtojoule and Femtosecond Extreme Broadband Adaptive Reconfigurable Devices/PHEMTRONICSen
dc.rights© 2020, American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry C after technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.0c04034en
dc.subjectHot carrieren
dc.subjectTwo-dimensionalen
dc.subject2Den
dc.subjectSilver nanoparticleen
dc.subjectAgNPen
dc.subjectLight illuminationen
dc.subjectPlasmon resonanceen
dc.subjectExcitation wavelengthen
dc.subject~Tyndall National Institute - Journal Articles~en
dc.titleHot carrier generation in two-dimensional silver nanoparticle arrays at different excitation wavelengths under on-resonant conditionsen
dc.typeArticle (peer-reviewed)en
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
acs.jpcc.0c04034_MModreanu.pdf
Size:
1.14 MB
Format:
Adobe Portable Document Format
Description:
Accepted Version
Download
Thumbnail Image
Name:
jp0c04034_si_001.pdf
Size:
640.94 KB
Format:
Adobe Portable Document Format
Description:
Supporting Information
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Tyndall National Institute - Journal Articles