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Photophysical and structural characterisation of in situ formed quantum dots

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dc.contributor.authorBansal, A. K.
dc.contributor.authorAntolini, F.
dc.contributor.authorSajjad, M. T.
dc.contributor.authorStroea, L.
dc.contributor.authorMazzaro, R.
dc.contributor.authorRamkumar, S. G.
dc.contributor.authorKass, K. -J.
dc.contributor.authorAllard, S.
dc.contributor.authorScherf, U.
dc.contributor.authorSamuel, I. D. W.
dc.date.accessioned2014-08-20T14:31:04Z
dc.date.available2014-08-20T14:31:04Z
dc.date.issued2014-04-11
dc.identifier135294086
dc.identifierb7d7e126-ec2f-4796-9e1f-b9b1ef35d1b2
dc.identifier000335818600040
dc.identifier84899498629
dc.identifier000335818600040
dc.identifier.citationBansal , A K , Antolini , F , Sajjad , M T , Stroea , L , Mazzaro , R , Ramkumar , S G , Kass , K -J , Allard , S , Scherf , U & Samuel , I D W 2014 , ' Photophysical and structural characterisation of in situ formed quantum dots ' , Physical Chemistry Chemical Physics , vol. 16 , no. 20 , pp. 9556-9564 . https://doi.org/10.1039/c4cp00727aen
dc.identifier.issn1463-9076
dc.identifier.urihttps://hdl.handle.net/10023/5196
dc.descriptionThe authors acknowledge financial support from FP7 project “Laser Induced Synthesis of Polymeric Nanocomposite Materials and Development of Micro-patterned Hybrid Light Emitting Diodes (LED) and Transistors (LET)” – LAMP project (G.A. 247928). AKB and IDWS also acknowledge financial support from EPSRC Programme grant “Challenging the limits of photonics: Structured light” EP/J01771X/1.en
dc.description.abstractConjugated polymer-semiconductor quantum dot (QD) composites are attracting increasing attention due to the complementary properties of the two classes of materials. We report a convenient method for in situ formation of QDs, and explore the conditions required for light emission of nanocomposite blends. In particular we explore the properties of nanocomposites of the blue emitting polymer poly[9,9-bis(3,5-di-tert-butylphenyl)-9H-fluorene] together with cadmium sulphide (CdS) and cadmium selenide (CdSe) precursors. We show the formation of emissive quantum dots of CdSe from thermally decomposed precursor. The dots are formed inside the polymer matrix and have a photoluminescence quantum yield of 7.5%. Our results show the importance of appropriate energy level alignment, and are relevant to the application of organic-inorganic systems in optoelectronic devices.
dc.format.extent9
dc.format.extent2999995
dc.language.isoeng
dc.relation.ispartofPhysical Chemistry Chemical Physicsen
dc.subjectOrganic-inorganic nanocompositesen
dc.subjectEnergy-transferen
dc.subjectSolar-cellsen
dc.subjectEmitting polymersen
dc.subjectCharge separationen
dc.subjectNanocrystalsen
dc.subjectNanoparticlesen
dc.subjectCDSEen
dc.subjectPrecursorsen
dc.subjectDevicesen
dc.subjectQC Physicsen
dc.subjectQD Chemistryen
dc.subject.lccQCen
dc.subject.lccQDen
dc.titlePhotophysical and structural characterisation of in situ formed quantum dotsen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorEuropean Commissionen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.identifier.doi10.1039/c4cp00727a
dc.description.statusPeer revieweden
dc.identifier.grantnumberEP/J01771X/1en
dc.identifier.grantnumber247928en


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