The OLED emitter Ir(btp)_1tn2(acac) [Elektronische Ressource] : photophysical properties of the triplet state studied by highly-resolving spectroscopy / vorgelegt von Walter J. Finkenzeller

The OLED Emitter Ir(btp) (acac) –2Photophysical Properties of the Triplet StateStudied byHighly Resolving SpectroscopyDissertationzurErlangungdesDoktorgradesderNaturwissenschaften(Dr. rer. nat.)anderNaturwissenschaftlichenFakultat¨ IV–ChemieundPharmazie–derUniversitat¨ RegensburgvorgelegtvonWalterJ.FinkenzellerausIngolstadtRegensburg,2008Promotionsgesucheingereichtam26.03.2008DieArbeitwurdeangeleitetvonProf. Dr. H.YersinamInstitutfur¨ PhysikalischeundTheoretischeChemiederUniversitat¨ Regensburg.Prufungsausschuss:¨ Prof. Dr. R.Winter,VorsitzenderProf. Dr. H.Yersin,1. GutachterProf. Dr. B.Dick,2.Prof. Dr. A.PenzkoferPartsofthisworkarealreadypublished:Bauer,R;Finkenzeller,W.J.;Bogner,U.;Thompson,M.E.;Yersin,H.Matrix Influence on the OLED Emitter Ir(btp) (acac) in Polymeric Host Materials2–StudiesbyPersistentSpectralHoleBurningOrganicElectronics2008,inpress.Yersin,H;Finkenzeller,W.J.In Highly Efficient OLEDs with Phosphorescent Materials; Yersin, H., Ed.; Wiley VCH:Weinheim,2007,p.1.Finkenzeller,W.J.;Thompson,M.E.,Yersin,H.PhosphorescenceDynamicsandSpin LatticeRelaxationoftheOLEDEmitterIr(btp) (acac)2ChemicalPhysicsLetters2007,444,273.Finkenzeller,W.J.;Hofbeck,T.;Thompson,M.E.,Yersin,H.Triplet State Properties of the OLED Emitter Ir(btp) (acac) – Characterization by2Site SelectiveSpectroscopyandApplicationofHighMagneticFieldsInorganicChemistry2007,46,5076.ContentsIntroduction 51 OLEDs–AnIntroduction 91.1 Basicworkingprinciple . . . . . . . . .