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dc.contributor.authorLiu, Guohua
dc.contributor.authorDao, Nguyen Duy Phuong
dc.contributor.authorNguyen, Vy
dc.contributor.authorDu, Kang
dc.contributor.authorCheng, Chaoqun
dc.contributor.authorXu, Jinliang
dc.contributor.authorWang, Kaiying
dc.date.accessioned2020-03-25T14:05:15Z
dc.date.available2020-03-25T14:05:15Z
dc.date.created2019-05-02T13:30:21Z
dc.date.issued2019
dc.identifier.citationJournal of Alloys and Compounds. 2019, 776 149-155.en_US
dc.identifier.issn0925-8388
dc.identifier.urihttps://hdl.handle.net/11250/2648631
dc.description.abstractOne-dimensional zinc oxide (ZnO) nanorods have excellent electron mobility and exhibit great potential for photoelectric or photochemical applications. However, poor visible light absorption and rapid surface charge recombination are bottleneck for promoting its applications. In this work, plasmonic gold nanoparticles (Au NPs) and dielectric silicon oxide (SiO2) are deposited on the surface of ZnO nanorods to tune their photoelectric performance. The localized surface plasmon resonance of Au NPs extends the absorption spectrum to visible region. The surface passivation with dielectric SiO2 layer suppresses the photoexcited electron-hole recombination. By rational integration of the configuration, it is found that dielectric spacer (ZnO-SiO2-Au) shows obvious photocurrent improvement. While dielectric shell-coating (ZnO-Au-SiO2) dramatically leads to an outstanding photocurrent enhancement, which is ∼4–28 times higher than that of the other counterparts. The enhanced performance is ascribed to its effectiveness for spatially separating electron-hole pairs and optimizing photo-absorption properties of the metal-semiconductor system. This strategy provides new insights into fabrication of high performance light harvesting antenna, and stands for a basis to design solar-active systems.en_US
dc.language.isoengen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleEnhanced photoelectric response of plasmon-active ZnO nanorods by spatial modulation of dielectric environmenten_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber149-155en_US
dc.source.volume776en_US
dc.source.journalJournal of Alloys and Compoundsen_US
dc.identifier.doi10.1016/j.jallcom.2018.10.233
dc.identifier.cristin1695154
dc.relation.projectNorges forskningsråd: 245963en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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