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An ovel of cyclometalated iridium (Ⅲ) complex, [Ir(dmpq)2(Br2bpy)]+PF6-(dmpq=2-(3,5-dimethylphenyl) quinoline, Br2bpy=4,4'-dibromo-2,2'-bipyridine) was synthesized with quinoline compound as cyclometalated ligand and 4,4'- dibromo-2,2'-bipyridine as ancillary ligand. New ridium (Ⅲ) complex was characterized by the elemental analysis, NMR (¹H and 13C), MS and FT-IR. Photophysical property of this complex was investigated. Single crystals of complex was prepared, via a solvent evaporation technique, and was subjected to X-ray diffraction analysis. The results show complex was in the monoclinic system with a space group of P21/n. A strong red-emission at 649 nm was observed in photoluminescence absorption spectra of the compound. [ABSTRACT FROM AUTHOR]

Luminescence block copolymer poly (p-phenylene vinylene) with polyethylene oxide (PPVPEO600) was successfully synthesized through the Wittig reaction. PPVPEO600 is highly soluble in common organic solvents and can be spin-coated onto various-substrates to give highly homogeneous thin films. It is amorphous at room temperature. PPVPEO600 shows a glass transition at -46.3 °C and its degradation temperature is 359 °C under nitrogen atmosphere. The PLECs device based on this copolymer was successfully fabricated and the structure is ITO/PPVPEO (LiClO4)/Au. It shows a turn-on voltage at 2.6 V for both current and light emission. Its EL maximum emission peaks appear at 458 nma nd 485 nm respectively. PPVPEO600 can be used as a blue light emission material. [ABSTRACT FROM AUTHOR]