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- W2018625703 abstract "Electric field applied to indium-tin oxide (ITO)/organic layer/Au thin-film structure has been shown to strongly (up to 40%) reduce the photoluminescence (PL) of organic films composed of Eu3+ complexes-doped diamine derivative (TPD): Polycarbonate thin layers used as red light electroluminescent emitters. Two components of this effect can be extracted from the experiment: (i) electric-field enhanced dissociation of excited states, and (ii) quenching of excited states due to the injected charge. While component (i) reduces PL irrespective of the nature of electrode contacts, the negative values of component (ii) have been observed for some emitters with ITO/organic emitter/Au structures, tending to an enhancement of the PL. The latter is assigned to the recombination of holes generated by the thermionic emission from ITO (Au) anode and electrons created by exciton reactions at Au (ITO) cathode. The strong PL quenching effects have been attributed to the field increasing occupation of ligands by electrons, competing with excitation energy transfer to them from TPD, the latter being the process responsible for the population of emissive Eu3+ ion states." @default.
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- W2018625703 date "2006-01-30" @default.
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- W2018625703 title "Large electric field effects on photoluminescence of organic Eu3+ complex-based electroluminescent emitters" @default.
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