Cucurbit [7] uril-threaded fluorene-thiophene-based conjugated polyrotaxanes

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buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage98116en_US
dc.citation.issueNumber100en_US
dc.citation.spage98109en_US
dc.citation.volumeNumber6en_US
dc.contributor.authorIdris, M.en_US
dc.contributor.authorBazzar, M.en_US
dc.contributor.authorGuzelturk, B.en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.contributor.authorTuncel, D.en_US
dc.date.accessioned2018-04-12T10:47:56Z
dc.date.available2018-04-12T10:47:56Z
dc.date.issued2016en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentDepartment of Chemistryen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractHere we investigate the effect of cucurbit[7]uril (CB7) on the thermal and optical properties of fluorene-thiophene based conjugated polyelectrolytes. For this purpose, poly(9,9′-bis(6′′-(N,N,N-trimethylammonium)hexyl)fluorene-alt-co-thiophenelene) P1 and poly(9,9′-bis(6′′-(N,N,N-trimethylammonium)propyl)fluorene-alt-co-thiophenelene) P2 and their CB7-based polyrotaxane counterparts, P1CB7 and P2CB7, are synthesized by threading the part of the conjugated backbone of these polymers with CB7 during their synthesis. Threading efficiency in the P1CB7 containing hexyl pendant of as high as 50% is achieved, but in the case of P2, with the propyl pendant, only around 15% is achieved. We observed significant changes in the optical properties of both P1CB7 and P2CB7 with respect to their polymers P1 and P2. Fluorescent quantum yields of P1 and P2 which are 0.11 and 0.35 have increased to 0.46 and 0.55 for P1CB7 (>4 fold) and P2CB7, respectively. Moreover, polyrotaxanes compared to their polymers exhibit longer fluorescence lifetimes in the solution and the solid state thanks to the suppressed overall nonradiative recombination via encapsulation of the conjugated polymer backbone. Thermal analysis also indicates that polyrotaxanes have higher thermal stabilities than their polymer counterparts. In order to demonstrate the applicability of the synthesized materials, we also fabricated proof-of-concept light emitting diodes from P1 and its CB7-based polyrotaxane counterpart P1CB7. The CB7-integrating polymer showed lower turn-on voltages with high electroluminescence colour purity due to balanced charge injection in P1CB7 as compared to the P1 polymer.en_US
dc.identifier.doi10.1039/c6ra21622fen_US
dc.identifier.issn2046-2069
dc.identifier.urihttp://hdl.handle.net/11693/36671
dc.language.isoEnglishen_US
dc.publisherRoyal Society of Chemistryen_US
dc.relation.isversionofhttp://dx.doi.org/10.1039/c6ra21622fen_US
dc.source.titleRSC Advancesen_US
dc.subjectFluorescenceen_US
dc.subjectHydrogelsen_US
dc.subjectLight emitting diodesen_US
dc.subjectOptical propertiesen_US
dc.subjectPolyelectrolytesen_US
dc.subjectThermoanalysisen_US
dc.subjectThiopheneen_US
dc.subjectBalanced charge injectionen_US
dc.subjectConjugated backbonesen_US
dc.subjectConjugated polyelectrolytesen_US
dc.subjectFluorene-thiopheneen_US
dc.subjectFluorescence lifetimesen_US
dc.subjectNon-radiative recombinationsen_US
dc.subjectProof of concepten_US
dc.subjectSynthesized materialsen_US
dc.subjectConjugated polymersen_US
dc.titleCucurbit [7] uril-threaded fluorene-thiophene-based conjugated polyrotaxanesen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)
Department of Chemistry
Department of Electrical and Electronics Engineering
Department of Physics