Energy transfer processes among emitters dispersed in a single polymer layer for colour tuning in OLEDs

Georgiadou, DG; Vasilopoulou, M; Pistolis, G; Palilis, L; Dimotikali, D; Argitis, P

dc.contributor.author	Georgiadou, DG	en
dc.contributor.author	Vasilopoulou, M	en
dc.contributor.author	Pistolis, G	en
dc.contributor.author	Palilis, L	en
dc.contributor.author	Dimotikali, D	en
dc.contributor.author	Argitis, P	en
dc.date.accessioned	2014-03-01T02:45:15Z
dc.date.available	2014-03-01T02:45:15Z
dc.date.issued	2008	en
dc.identifier.issn	1862-6300	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32235
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Physics, Applied	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Blue shifts	en
dc.subject.other	Emission tuning	en
dc.subject.other	Emitting areas	en
dc.subject.other	Energy transfer processes	en
dc.subject.other	Exposure doses	en
dc.subject.other	Green emitters	en
dc.subject.other	Hexatriene	en
dc.subject.other	Photoacid generators	en
dc.subject.other	Polymeric layers	en
dc.subject.other	Red , green and blues	en
dc.subject.other	Red emitters	en
dc.subject.other	Relative concentrations	en
dc.subject.other	Single polymers	en
dc.subject.other	Wide bands	en
dc.subject.other	ABS resins	en
dc.subject.other	Color	en
dc.subject.other	Energy transfer	en
dc.subject.other	Fluorescence	en
dc.subject.other	Light emission	en
dc.subject.other	Luminescence	en
dc.subject.other	Optical properties	en
dc.subject.other	Photoresistors	en
dc.subject.other	Photoresists	en
dc.subject.other	Polymers	en
dc.subject.other	Tuning	en
dc.subject.other	Biodegradable polymers	en
dc.title	Energy transfer processes among emitters dispersed in a single polymer layer for colour tuning in OLEDs	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1002/pssa.200780204	en
heal.identifier.secondary	http://dx.doi.org/10.1002/pssa.200780204	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The energy transfer processes taking place in a single polymeric layer that enable the definition of the three primary colours (red, green and blue) in selected areas via photochemically induced emission tuning are discussed. The polymers used as hosts are two wide band gap polymers, PVK and a polyfluorenyl derivative. In the polymer matrix are dispersed the green emitter, 1-(4'-dimethyl-aminophenyl)-6phenyl-1,3,5-hexatriene (DMA-DPH), the red emitter, 4dimethylamino-4'-nitrostilbene (DANS) and a photoacid generator (PAG). Upon irradiation, protons are released from the PAG and they react gradually with the two emitters, causing the blue shift of the green emitter fluorescence and the extinction of the red emitter fluorescence. Depending on the protonation extent, the relative concentrations of the emitters and the exposure dose the energy transfer processes occurring inside the matrix result in definition of different colour emitting areas. The understanding of the energy transfer processes with photoluminescence experiments is a necessary first step in order to rationalize the selection of suitable components enabling the definition of the three primary colours in OLEDs. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim	en
heal.publisher	WILEY-V C H VERLAG GMBH	en
heal.journalName	Physica Status Solidi (A) Applications and Materials Science	en
dc.identifier.doi	10.1002/pssa.200780204	en
dc.identifier.isi	ISI:000261088200007	en
dc.identifier.volume	205	en
dc.identifier.issue	11	en
dc.identifier.spage	2526	en
dc.identifier.epage	2531	en