Synthesis and luminescent properties of novel soluble quinacridones

Peihua Liu; Chen-Pin Chang; He Tian

doi:10.1117/12.457489

27 February 2002 Synthesis and luminescent properties of novel soluble quinacridones

Peihua Liu, Chen-Pin Chang, He Tian

Proceedings Volume 4464, Organic Light-Emitting Materials and Devices V; (2002) https://doi.org/10.1117/12.457489
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

Some novel 2, 5, 9, 12- tetra-substituted quinacridones were synthesized. The comparison of absorption spectra and fluorescence spectra of these soluble quinacridones between in solutions and in solid film indicated that the formation of intermolecular hydrogen bonds in the crystalline was obstructed by N-alkylation. These compounds have good solubility in common solvents such as dichloromethane, chloroform, acetone, DMF etc. The good solubility provides an opportunity for a higher doping concentration of the quinacridone fluorophore chromophore in the application of photoelectronic devices. The longer fluorescence lifetimes (ca. 20 ns) of these soluble quinacridones were measured by single-photon counting technique, which seems to be hopeful for the luminescence application. The EL device made with the soluble quinacridone show a luminance of 150 cd/m² and injected current as high as 400 mA/ cm² at 18 V.

Citation Download Citation

Peihua Liu, Chen-Pin Chang, and He Tian "Synthesis and luminescent properties of novel soluble quinacridones", Proc. SPIE 4464, Organic Light-Emitting Materials and Devices V, (27 February 2002); https://doi.org/10.1117/12.457489

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