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Mixed ligands 8-hydroxyquinoline aluminum complex with high electron mobility for organic light-emitting diodes
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FIG. 1.

Oak Ridge Thermal Ellipsoid Plot (ORTEP) (20% ellipsoids) (a) of and scattered x-ray intensity as a function of diffraction angle [see (b)] [shown are the observed patterns (curve a) and the best Rietveld-fit profiles (curve b)].

Image of FIG. 2.

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FIG. 2.

Voltage dependence of the transient EL of type A device (a) and electron mobilities of the as a function of the square root of the bias field (b).

Image of FIG. 3.

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FIG. 3.

Luminance-voltage curves (a) and current density-voltage curves [see Fig. 3(b)] of type B devices. The inset (a) shows the comparison of the EL efficiency as function of current density for -based device (solid squares) and -based device (empty squares).

Image of FIG. 4.

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FIG. 4.

Two-dimensional AFM images for the (a) and (b) thin films.

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/content/aip/journal/apl/92/10/10.1063/1.2885708
2008-03-10
2014-04-21

Abstract

A mixed ligands 8-hydroxyquinoline complex with improved electron mobility was designed for organic light-emitting diodes. The electron mobility in was determined via transient electroluminescence(EL) from bilayer devices with structure of indium tin oxide/4,-bis[-(1-naphthyl)--Phenyl amino]biphenyl/. It was found that the electron mobility in is between at electric fields ranging between and , which is higher than that in . The also shows a higher EL efficiency in steady-state EL studies, which is considered to be derived from (1) improved electron mobility, (2) high fluorescene efficiency, and (3) good film-forming.

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Scitation: Mixed ligands 8-hydroxyquinoline aluminum complex with high electron mobility for organic light-emitting diodes
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/10/10.1063/1.2885708
10.1063/1.2885708
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