Abstract
The amphiphilic complex bis[2–( N–hexadecylcarbamoyl–8–hydroxyquinoline]magnesium (MgL 2) forms stable monolayer on pure water subphase and can be easily fabricated as stable uniform Langmuir–Blodgett (LB) films. Low-angle X-ray diffraction measurements showed MgL 2 LB films had good homogeneity with a bilayer thickness of ca. 4.92 nm. Anisotropy of conductivity was observed in the LB film. The in-plane conductivity parallel to the compression direction on quartz substrate and the vertical conductivity on ITO glass is found to be 4.50×10 −5 and 2.44×10 −9 S/m, respectively. Organic electroluminescent devices with a single layer structure (ITO/emitting layer (LB films)/Al) were constructed using MgL 2 LB films as the emitting material. The number of the layer of LB films and the deposited surface pressure had strong influence on the EL intensity and break-down voltage of the EL devices.
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