Improved efficiency by a fluorescent dye in red organic light-emitting devices based on a europium complex

Junfeng Fang,Han You,Jia Gao,Dongge Ma

doi:10.1016/j.cplett.2004.05.040

Improved efficiency by a fluorescent dye in red organic light-emitting devices based on a europium complex

Junfeng Fang, Han You + Show 2 more

https://doi.org/10.1016/j.cplett.2004.05.040

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Journal: Chemical physics letters	Publication Date: Jun 8, 2004
Citations: 48

Affiliation: State Key Laboratory of Polymer Physics and Chemistry, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry

#Efficient Red Organic Light-emitting Diodes #Europium Complex + Show 8 more

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Abstract

By doping a fluorescent dye in the emissive layer, we realized high efficient red organic light-emitting diodes (OLEDs) based on a europium complex. The OLEDs realized by this method showed pure red emission at 612 nm with a full width at half maximum of 3 nm. The Commission International de L`Eclairage Coordination keeps approximately the same as the emission of pure Eu 3+. The maximum brightness and EL efficiency reached 2450 cd/m 2 at 20 V and 9.0 cd/A (6.0 lm/w) at a current density of 0.012 mA/cm 2, respectively. At the brightness of 100 cd/m 2, the current efficiency reached 4.4 cd/A.

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