Preparation and characterization of blue-luminescent tris(8-hydroxyquinoline) aluminum (Alq3)

被引：215

作者：

Cölle, M ^{[1
]}

Gmeiner, J ^{[1
]}

Milius, W ^{[1
]}

Hillebrecht, H ^{[1
]}

Brütting, W ^{[1
]}

机构：

[1] Univ Bayreuth, D-95440 Bayreuth, Germany

来源：

ADVANCED FUNCTIONAL MATERIALS | 2003年 / 13卷 / 02期

关键词：

PHASE; DFT;

D O I：

10.1002/adfm.200390015

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using differential scanning calorimetry (DSC) measurements in combination with structural and optical characterization we have investigated the formation conditions of different phases of tris(8-hydroxyquinoline)aluminium (Alq(3)). We have identified the delta-phase as a high-temperature phase of Alq(3) being composed of the facial stereoisomer, and report an efficient method to obtain blue luminescent Alq(3) by a simple annealing process. This allows the preparation of large amounts of pure delta-Alq(3) by choosing appropriate annealing conditions, which is necessary for further characterization of this blue-luminescent phase, and offers the possibility of fabricating blue organic light-emitting devices (OLEDs) from this material.

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页码：108 / 112

页数：5

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