dc.contributor.author | Cheng, Chaoqun | |
dc.contributor.author | Gustavsen, Kim Robert | |
dc.contributor.author | Wang, Kaiying | |
dc.date.accessioned | 2022-05-24T12:07:17Z | |
dc.date.available | 2022-05-24T12:07:17Z | |
dc.date.created | 2022-02-09T15:17:18Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Cheng, C., Gustavsen, K. R. & Wang, K. (2021). Plasmon-induced visible light absorption arising from edge-interfaces of titanium-oxides nanocomposites. Optical Materials, 113, Artikkel 110847. | en_US |
dc.identifier.issn | 0925-3467 | |
dc.identifier.uri | https://hdl.handle.net/11250/2995907 | |
dc.description.abstract | The efficient utilization of visible light on wide-bandgap metal-oxides is a long-term goal but is still a grand challenge for plasmon-driven chemistry. The plasmon-induced concentration of photons in adjacent materials provides a strategic pathway to extend the light-harvesting regime to sub-bandgap. With the abundant edge-spots in surface nanostructures, here, we report that the titanium-oxides nanocomposites composed of the metallic titanium coupled with its oxides exhibit significant resonant visible absorption. The experimental characterizations with computational analyses demonstrate that the excited plasmon resonance at edge-interfaces results in the unique visible absorption band. Localized field-enhancement, charge-scattering, and hot-electrons effects conclusively confirm that the visible absorption is derived from the plasmon resonance, rather than the narrowing of bandgap or energy levels of impurities or defects. The plasmon-induced absorption effectively enhances the separation and transfer of photogenerated charge carriers leading to improved photoactivity. Our results help to advance titanium-oxides nanocomposites towards plasmonic chemistry in the visible-light region and highlight a potential general route to harnessing photons beyond the bandgap limitation based on plasmonic metal-oxides nanocomposites. | en_US |
dc.language.iso | eng | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Plasmon-induced visible light absorption arising from edge-interfaces of titanium-oxides nanocomposites | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2021 The Author(s). | en_US |
dc.source.volume | 113 | en_US |
dc.source.journal | Optical materials (Amsterdam) | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.optmat.2021.110847 | |
dc.identifier.cristin | 1999624 | |
dc.source.articlenumber | 110847 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |