Rhodamine 6G and 800 intermolecular heteroaggregates embedded in PMMA for near-infrared wavelength shifting

dc.bibliographicCitation.firstPage7119eng
dc.bibliographicCitation.issue18eng
dc.bibliographicCitation.journalTitleJournal of materials chemistry : C, Materials for optical and electronic deviceseng
dc.bibliographicCitation.lastPage7131eng
dc.bibliographicCitation.volume10eng
dc.contributor.authorCastillo-Seoane, Javier
dc.contributor.authorGonzalez-Garcia, Lola
dc.contributor.authorObrero-Perez, José M.
dc.contributor.authorAparicio, Francisco J.
dc.contributor.authorBorrás, Ana
dc.contributor.authorGonzález-Elipe, Agustín R.
dc.contributor.authorBarranco, Ángel
dc.contributor.authorSanchez-Valencia, Juan R.
dc.date.accessioned2022-07-14T06:29:01Z
dc.date.available2022-07-14T06:29:01Z
dc.date.issued2022
dc.description.abstractThe opto-electronic properties of small-molecules and functional dyes usually differ when incorporated into solid matrices with respect to their isolated form due to an aggregation phenomenon that alters their optical and fluorescent properties. These spectroscopic modifications are studied in the framework of the exciton theory of aggregates, which has been extensively applied in the literature for the study of molecular aggregates of the same type of molecules (homoaggregation). Despite the demonstrated potential of the control of the heteroaggregation process (aggregation of different types of molecules), most of the reported works are devoted to intramolecular aggregates, complex molecules formed by several chromophores attached by organic linkers. The intramolecular aggregates are specifically designed to hold a certain molecular structure that, on the basis of the exciton theory, modifies their optical and fluorescent properties with respect to the isolated chromophores that form the molecule. The present article describes in detail the incorporation of Rhodamine 6G (Rh6G) and 800 (Rh800) into polymeric matrices of poly-(methyl methacrylate), PMMA. The simultaneous incorporation of both dyes results in an enhanced fluorescent emission in the near-infrared (NIR), originating from the formation of ground-state Rh6G–Rh800 intermolecular heteroaggregates. The systematic control of the concentration of both rhodamines provides a model system for the elucidation of the heteroaggregate formation. The efficient energy transfer between Rh6G and Rh800 molecules can be used as wavelength shifters to convert effectively the light from visible to NIR, a very convenient wavelength range for many practical applications which make use of inexpensive commercial detectors and systems.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/9734
dc.identifier.urihttps://doi.org/10.34657/8771
dc.language.isoengeng
dc.publisherLondon [u.a.] : RSCeng
dc.relation.doihttps://doi.org/10.1039/D1TC06167D
dc.relation.essn2050-7534
dc.rights.licenseCC BY-NC 3.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/eng
dc.subject.ddc540eng
dc.subject.ddc530eng
dc.subject.ddc620eng
dc.subject.otherAgglomerationeng
dc.subject.otherAggregateseng
dc.subject.otherChromophoreseng
dc.subject.otherElectronic propertieseng
dc.subject.otherEnergy transfereng
dc.titleRhodamine 6G and 800 intermolecular heteroaggregates embedded in PMMA for near-infrared wavelength shiftingeng
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccesseng
wgl.contributorINMeng
wgl.subjectChemieeng
wgl.typeZeitschriftenartikeleng
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