Effects of nitrogen, oxygen, and moisture on the electron transport in tris(8-hydroxyquinoline) aluminum

被引：23

作者：

Fong, HH

So, SK ^{[1
]}

机构：

[1] Hong Kong Baptist Univ, Dept Phys, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Baptist Univ, Ctr Adv Luminescence Mat, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 98卷 / 02期

关键词：

D O I：

10.1063/1.1990258

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of nitrogen, oxygen, and moisture on the electron mobilities of tris(8-hydroxyquinoline) aluminum (Alq(3)) have been examined by time-of-flight (TOF) technique at room temperature under an applied electric-field range of 0.3-1 MV/cm. Our results suggest that both oxygen and water molecules can impede electron conduction in Alq(3). Detailed analysis suggests that water molecules induce electron traps even at very low dosages. Oxygen interacts with Alq(3) at high dosages and results in highly dispersive TOF signals. Moisture appears to be more detrimental than oxygen in hindering electron transport in Alq(3).

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页数：4

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