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Beyond universal volume scaling: tailoring two-photon absorption in nanomaterials by heterostructure design
dc.contributor.author | Alo, Arthur | |
dc.contributor.author | Barros, Leonardo | |
dc.contributor.author | Nagamine, Gabriel | |
dc.contributor.author | Cotrino Lemus, Jonathan | |
dc.contributor.author | Planelles, Josep | |
dc.contributor.author | Movilla, Jose L. | |
dc.contributor.author | Climente, Juan I. | |
dc.contributor.author | Lee, Hak June | |
dc.contributor.author | Bae, Wan Ki | |
dc.contributor.author | Padilha, Lazaro | |
dc.date.accessioned | 2023-09-13T11:01:19Z | |
dc.date.available | 2023-09-13T11:01:19Z | |
dc.date.issued | 2023-07-28 | |
dc.identifier.citation | Alo, A., Barros, L. W., Nagamine, G., Lemus, J. C., Planelles, J., Movilla, J. L., ... & Padilha, L. A. (2023). Beyond Universal Volume Scaling: Tailoring Two-Photon Absorption in Nanomaterials by Heterostructure Design. Nano Letters 23 (15), 7180-7187 | ca_CA |
dc.identifier.issn | 1530-6984 | |
dc.identifier.issn | 1530-6992 | |
dc.identifier.uri | http://hdl.handle.net/10234/204158 | |
dc.description.abstract | Colloidal semiconductor nanomaterials present broadband, with large cross-section, two-photon absorption (2PA) spectra, which turn them into an important platform for applications that benefit from a high nonlinear optical response. Despite that, to date, the only means to control the magnitude of the 2PA cross-section is by changing the nanoparticle volume, as it follows a universal volume scale, independent of the material composition. As the emission spectrum is connected utterly to the nanomaterial dimensions, for a given material, the magnitude of the nonlinear optical response is also coupled to the emission spectra. Here, we demonstrate a means to decouple both effects by exploring the 2PA response of different types of heterostructures, tailoring the volume dependence of the 2PA cross-section due to the different dependence of the density of final states on the nanoparticle volume. By heterostructure engineering, one can obtain 1 order of magnitude enhancement of the 2PA cross-section with minimum emission spectra shift. | ca_CA |
dc.format.extent | 20 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | ACS Publications (American Chemical Society) | ca_CA |
dc.relation.isPartOf | Nano Letters, Vol. 23 (15) (2023) | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | ca_CA |
dc.subject | nonlinear optics | ca_CA |
dc.subject | quantum dots | ca_CA |
dc.subject | nanocrystals | ca_CA |
dc.subject | CdSe | ca_CA |
dc.subject | up-conversion | ca_CA |
dc.subject | ultrafast spectroscopy | ca_CA |
dc.title | Beyond universal volume scaling: tailoring two-photon absorption in nanomaterials by heterostructure design | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1021/acs.nanolett.3c02131 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.type.version | info:eu-repo/semantics/acceptedVersion | ca_CA |
project.funder.name | São Paulo Research Foundation, FAPESP | ca_CA |
project.funder.name | Generalitat Valenciana | ca_CA |
project.funder.name | Universitat Jaume I | ca_CA |
oaire.awardNumber | grants 2018/15574-6, 2018/25339-4, 2019/22823-5 | ca_CA |
oaire.awardNumber | Prometeo project 22I235-CIPROM/2021/078 | ca_CA |
oaire.awardNumber | UJI-B2021-06 | ca_CA |
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