Synthesis and characterization of near-ir emissive tetra styryl-BODIPY based light harvesting energy transfer cassettes

buir.advisorAkkaya, Engin U.
dc.contributor.authorKöstereli, Ziya
dc.date.accessioned2016-01-08T18:15:08Z
dc.date.available2016-01-08T18:15:08Z
dc.date.issued2011
dc.descriptionAnkara : The Department of Chemistry and the Institute of Engineering and Sciences of Bilkent University, 2011.en_US
dc.descriptionThesis (Master's) -- Bilkent University, 2011.en_US
dc.descriptionIncludes bibliographical references leaves 55-58.en_US
dc.description.abstractLight harvesting antenna systems are being used to harvest light through its antenna units. Using these systems, light is channeled into an acceptor chromophore and much more concentrated energy is obtained in acceptor unit with a specific wavelength. In this study, we have rationally designed and synthesized two different novel Förster-type light harvesting energy transfer cassettes which have large stokes shifts and emit in near-IR region. The first cassette has four boradiazaindacene (BODIPY) as donor groups and one tetrastyryl-BODIPY as an acceptor group. The second cassette has four distyryl-BODIPY units as donor groups and one tetrastyryl-BODIPY as an acceptor group. Click chemistry is successfully used to combine donor and acceptor groups to each other. Efficient energy transfer from donor groups to acceptor group in both cassettes was observed and characterized using emission spectrum, quantum yields and lifetimes. Energy transfer efficiencies and rate of energy transfer were calculated and it is demonstrated that there is more efficient energy transfer in cassette that has better overlap in donor emission and acceptor absorption spectrum which is in accordiance with expected behaviour for Förster-type of energy transfer cassettes.en_US
dc.description.provenanceMade available in DSpace on 2016-01-08T18:15:08Z (GMT). No. of bitstreams: 1 0005066.pdf: 3766138 bytes, checksum: e581bb1631b45ba3e9ab61324c3ff928 (MD5)en
dc.description.statementofresponsibilityKöstereli, Ziyaen_US
dc.format.extentxiv, 80 leaves, illustrations, graphsen_US
dc.identifier.itemidB129457
dc.identifier.urihttp://hdl.handle.net/11693/15220
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBoradiazaindaceneen_US
dc.subjectLight harvestingen_US
dc.subjectEnergy transferen_US
dc.subjectFörster-type energy transferen_US
dc.subjectTetra-styryl BODIPYen_US
dc.subject.lccQC176.8.N35 K67 2011en_US
dc.subject.lcshNanostructured materials.en_US
dc.subject.lcshPhotochemistry.en_US
dc.subject.lcshEnergy transfer.en_US
dc.subject.lcshNanostructures.en_US
dc.subject.lcshLight emitting diodes.en_US
dc.titleSynthesis and characterization of near-ir emissive tetra styryl-BODIPY based light harvesting energy transfer cassettesen_US
dc.typeThesisen_US
thesis.degree.disciplineChemistry
thesis.degree.grantorBilkent University
thesis.degree.levelMaster's
thesis.degree.nameMS (Master of Science)

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