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Proceedings Paper

Synthesis and luminescent properties of novel soluble quinacridones
Author(s): Peihua Liu; Chen-Pin Chang; He Tian
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Paper 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.

Paper Details

Date Published: 27 February 2002
PDF: 8 pages
Proc. SPIE 4464, Organic Light-Emitting Materials and Devices V, (27 February 2002); doi: 10.1117/12.457489
Show Author Affiliations
Peihua Liu, East China Univ. of Science and Technology (China)
Chen-Pin Chang, Fu Jen Catholic Univ. (Taiwan)
He Tian, East China Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4464:
Organic Light-Emitting Materials and Devices V
Zakya H. Kafafi, Editor(s)

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