Phonon-Assisted Hot Carrier Generation in Plasmonic Semiconductor Systems

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dc.citation.firstpage1083
dc.citation.issueNumber2
dc.citation.journalTitleNano Letters
dc.citation.lastpage1089
dc.citation.volumeNumber21
dc.contributor.authorHattori, Yocefu
dc.contributor.authorMeng, Jie
dc.contributor.authorZheng, Kaibo
dc.contributor.authorMeier de Andrade, Ageo
dc.contributor.authorKullgren, Jolla
dc.contributor.authorBroqvist, Peter
dc.contributor.authorNordlander, Peter
dc.contributor.authorSá, Jacinto
dc.date.accessioned2021-02-24T19:15:47Z
dc.date.available2021-02-24T19:15:47Z
dc.date.issued2021
dc.description.abstractPlasmonic materials have optical cross sections that exceed by 10-fold their geometric sizes, making them uniquely suitable to convert light into electrical charges. Harvesting plasmon-generated hot carriers is of interest for the broad fields of photovoltaics and photocatalysis; however, their direct utilization is limited by their ultrafast thermalization in metals. To prolong the lifetime of hot carriers, one can place acceptor materials, such as semiconductors, in direct contact with the plasmonic system. Herein, we report the effect of operating temperature on hot electron generation and transfer to a suitable semiconductor. We found that an increase in the operation temperature improves hot electron harvesting in a plasmonic semiconductor hybrid system, contrasting what is observed on photodriven processes in nonplasmonic systems. The effect appears to be related to an enhancement in hot carrier generation due to phonon coupling. This discovery provides a new strategy for optimization of photodriven energy production and chemical synthesis.
dc.identifier.citationHattori, Yocefu, Meng, Jie, Zheng, Kaibo, et al.. "Phonon-Assisted Hot Carrier Generation in Plasmonic Semiconductor Systems." <i>Nano Letters,</i> 21, no. 2 (2021) American Chemical Society: 1083-1089. https://doi.org/10.1021/acs.nanolett.0c04419.
dc.identifier.digitalacs-nanolett-0c04419
dc.identifier.doihttps://doi.org/10.1021/acs.nanolett.0c04419
dc.identifier.urihttps://hdl.handle.net/1911/110088
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.rightsThis is an open access article published under a Creative Commons Attribution (CC-BY)License, which permits unrestricted use, distribution and reproduction in any medium,provided the author and source are cited.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titlePhonon-Assisted Hot Carrier Generation in Plasmonic Semiconductor Systems
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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