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dc.creatorTomović, Aleksandar
dc.creatorJovanović, Vladimir P.
dc.creatorDjurišić, Ivana
dc.creatorCerovski, Viktor
dc.creatorNastasijević, Branislav
dc.creatorVeličković, Suzana
dc.creatorRadulović, Katarina
dc.creatorŽikić, Radomir
dc.creatorSrdanov, Vojislav I.
dc.date.accessioned2023-04-19T08:04:06Z
dc.date.available2023-04-19T08:04:06Z
dc.date.issued2014
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/1902
dc.description.abstractWe studied degradation of 4,4′-bis(2,2′diphenyl vinyl)-1,1′-biphenyl (DPVBi), well know OLED material. Thermally evaporated thin films of DPVBi were irradiated with UV light in ambient, vacuum and under different oxygen pressures. The cause of degradation is reaction between UV excited DPVBi molecules and oxygen, via formation of singlet oxygen or electron transfer from excited DPVBi to molecular oxygen. Reaction rates depend on oxygen concentration and UV light intensity. These reactions lead to formation of oxidized species as evidenced by ASAP and MALDI-TOF mass spectroscopy. Photoluminescence quenching has two parts. One part is reversible and may imply formation of charge transfer complexes and the other is irreversible, caused by formation of oxidized species. IR and absorption spectra are studied by Density Functional Theory and results compared with the experiment.sr
dc.language.isoensr
dc.publisherMaterials Research Society of Serbiasr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/171033/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/41028/RS//sr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceTHE SIXTEENTH ANNUAL CONFERENCE YUCOMAT 2014 Programme and The Book of Abstractssr
dc.subjectsmall organic molecule DPVBi thin filmssr
dc.subjectUV-light induced film degradationsr
dc.subjectphotoluminescence quenchingsr
dc.subjectIR and UV-vis spectroscopysr
dc.subjectASAP and MALDI-TOF mass spectroscopysr
dc.titleDegradation of thin 4,4′-bis(2,2′diphenyl vinyl)-1,1′-biphenyl films by UV lightsr
dc.typecontributionToPeriodicalsr
dc.rights.licenseBY-NC-NDsr
dc.citation.spage100
dc.description.otherSIXTEENTH ANNUAL CONFERENCE YUCOMAT 2014 Hunguest Hotel Sun Resort Herceg Novi, Montenegro, September 1-5, 2014sr
dc.identifier.fulltexthttp://rimsi.imsi.bg.ac.rs/bitstream/id/4941/YUCOMAT_2014_abstract.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_rimsi_1902
dc.type.versionpublishedVersionsr


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