Photoluminescence dynamics of aluminumquinoline/oxadiazole multilayer structures

被引：6

作者：

Nakazawa, T ^{[1
]}

Asano, M ^{[1
]}

Fujita, S ^{[1
]}

机构：

[1] Kyoto Univ, Dept Elect Sci & Engn, Kyoto 6068501, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1999年 / 38卷 / 2B期

关键词：

aluminumquinoline; oxadiazole; multilayer structure; type-I energy lineup; photoluminescence dynamics; decay time;

D O I：

10.1143/JJAP.38.L206

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescence (PL) dynamics of aluminumquinoline/oxadiazole (AIq(3)/PBD) multilayer structures, which may possess a carrier confinement type-I energy lineup, has been investigated by time-resolved PL spectroscopy with a mode-locked Ti-sapphire laser. The decay time of the emission from PBD in the multilayer structure was as fast as several picoseconds, in contrast to that from a PBD single layer, 1.7 ns, and tended to increase with an increase in PBD thickness. For the emission from Alq(3), on the other hand, only a slight increase in the decay time was observed in the multilayer structure compared to a single layer. These results indicate the rapid energy transfer from PBD to Alq3, similar to that in semiconductor quantum well structures with the type-I energy lineup.

引用

页码：L206 / L208

页数：3

共 6 条

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