Synthesis, optical and electroluminescent properties of a novel Indacene

• Published in: Synthetic metals Vol. 139; no. 2; pp. 529 - 534
• Main Authors: Chen, H.Z., Jin, Y.D., Xu, R.S., Peng, B.X., Desseyn, H., Janssens, J., Heremans, P., Borghs, G., Geise, H.J.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 05.09.2003; Amsterdam Elsevier Science; New York, NY
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electroluminescence; Exact sciences and technology; Indacene; Luminescence; Madelung reaction; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Organic light-emitting diodes; Other luminescence and radiative recombination; Photoluminescence; Physics; Solid organic materials; Organic light-emitting diodes; Indacene; Madelung reaction; Luminescence; Indacene derivatives; Photoluminescence; Light emitting diodes; Electroluminescence; Experimental study; Quantum yield; Absorption spectra; Chemical synthesis; Application; IV characteristic; Organic compounds
• ISSN: 0379-6779; 1879-3290
• DOI: 10.1016/S0379-6779(03)00338-2

A novel compound 2,6-diphenyl-1,5-diaza-1,5-dihydro- s-indacene (Indacene) was synthesized by means of the Madelung reaction starting from 2,5-dimethyl-1,4-phenylenediamine. The structure was characterised by NMR, IR, MS, and elemental analysis. The UV/Vis absorption and photoluminescence spectra were investigated. The electroluminescent behaviour of the new compound was studied in ITO/PEDOT-PSS/Indacene-CNPPP/Mg–Ag(10:1)/Ag devices. The electroluminescent maximum was recorded at 504 nm corresponding to a greenish blue emission. The results demonstrate the potential application of Indacene in OLEDs.