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Appl. Sci. 2018, 8(4), 539;

Organic Light-Emitting Diodes Based on Phthalimide Derivatives: Improvement of the Electroluminescence Properties

Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire ICR, UMR 7273, F-13397 Marseille, France
Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, F-13397 Marseille, France
Author to whom correspondence should be addressed.
Received: 4 March 2018 / Revised: 28 March 2018 / Accepted: 29 March 2018 / Published: 31 March 2018
PDF [22824 KB, uploaded 3 May 2018]


In this study, a phthalimide-based fluorescent material has been examined as a green emitter for multilayered organic light-emitting diodes (OLEDs). By optimizing the device stacking, a maximum brightness of 28,450 cd/m2 at 11.0 V and a maximum external quantum efficiency of 3.11% could be obtained. Interestingly, OLEDs fabricated with Fluo-2 presented a 20-fold current efficiency improvement compared to the previous results reported in the literature, evidencing the crucial role of the device stacking in the electroluminescence (EL) performance of a selected emitter. Device lifetime was also examined and an operational stability comparable to that reported for a standard triplet emitter i.e., bis(4-methyl-2,5-diphenyl-pyridine)iridium(III) acetylacetonate [(mdppy)2Iracac] was evidenced. View Full-Text
Keywords: OLED; fluorescence; phosphorescence; green; device architecture OLED; fluorescence; phosphorescence; green; device architecture

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Dumur, F.; Ibrahim-Ouali, M.; Gigmes, D. Organic Light-Emitting Diodes Based on Phthalimide Derivatives: Improvement of the Electroluminescence Properties. Appl. Sci. 2018, 8, 539.

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