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dc.contributor.authorVezie, M. S.en
dc.contributor.authorFew, S.en
dc.contributor.authorMeager, I.en
dc.contributor.authorPieridou, Galatia K.en
dc.contributor.authorDörling, B.en
dc.contributor.authorAshraf, R. S.en
dc.contributor.authorGoñi, A. R.en
dc.contributor.authorBronstein, H.en
dc.contributor.authorMcCulloch, I.en
dc.contributor.authorHayes, Sophia C.en
dc.contributor.authorCampoy-Quiles, M.en
dc.contributor.authorNelson, J.en
dc.creatorVezie, M. S.en
dc.creatorFew, S.en
dc.creatorMeager, I.en
dc.creatorPieridou, Galatia K.en
dc.creatorDörling, B.en
dc.creatorAshraf, R. S.en
dc.creatorGoñi, A. R.en
dc.creatorBronstein, H.en
dc.creatorMcCulloch, I.en
dc.creatorHayes, Sophia C.en
dc.creatorCampoy-Quiles, M.en
dc.creatorNelson, J.en
dc.date.accessioned2019-11-21T06:23:30Z
dc.date.available2019-11-21T06:23:30Z
dc.date.issued2016
dc.identifier.issn1476-1122
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/56279
dc.description.abstractThe specific optical absorption of an organic semiconductor is critical to the performance of organic optoelectronic devices. For example, higher light-harvesting efficiency can lead to higher photocurrent in solar cells that are limited by sub-optimal electrical transport. Here, we compare over 40 conjugated polymers, and find that many different chemical structures share an apparent maximum in their extinction coefficients. However, a diketopyrrolopyrrole-thienothiophene copolymer shows remarkably high optical absorption at relatively low photon energies. By investigating its backbone structure and conformation with measurements and quantum chemical calculations, we find that the high optical absorption can be explained by the high persistence length of the polymer. Accordingly, we demonstrate high absorption in other polymers with high theoretical persistence length. Visible light harvesting may be enhanced in other conjugated polymers through judicious design of the structure. © 2016 Macmillan Publishers Limited. All rights reserved.en
dc.sourceNature Materialsen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84968680318&doi=10.1038%2fnmat4645&partnerID=40&md5=aaf107a80cb5879fb756bbec17f92191
dc.subjectOrganic polymersen
dc.subjectQuantum chemistryen
dc.subjectOptoelectronic devicesen
dc.subjectLighten
dc.subjectLight absorptionen
dc.subjectQuantum chemical calculationsen
dc.subjectConjugated polymersen
dc.subjectDiketopyrrolopyrrolesen
dc.subjectPersistence lengthen
dc.subjectBackbone structuresen
dc.subjectElectrical transporten
dc.subjectElectromagnetic wave absorptionen
dc.subjectExtinction coefficientsen
dc.subjectOrganic optoelectronicsen
dc.subjectOther conjugated polymersen
dc.subjectSemiconductor devicesen
dc.titleExploring the origin of high optical absorption in conjugated polymersen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1038/nmat4645
dc.description.volume15
dc.description.issue7
dc.description.startingpage746
dc.description.endingpage753
dc.author.faculty002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences
dc.author.departmentΤμήμα Χημείας / Department of Chemistry
dc.type.uhtypeArticleen
dc.description.notes<p>Cited By :29</p>en
dc.source.abbreviationNat.Mater.en
dc.contributor.orcidHayes, Sophia C. [0000-0002-2809-6193]
dc.gnosis.orcid0000-0002-2809-6193


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