BLUE-LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT DEVICES WITH OXADIAZOLE DIMER DYES AS AN EMITTER

被引：268

作者：

HAMADA, Y

ADACHI, C

TSUTSUI, T

SAITO, S

机构：

[1] Department of Materials Science and Technology, Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1992年 / 31卷 / 6A期

关键词：

ELECTROLUMINESCENCE; CHARGE INJECTION; BLUE EMISSION; ORGANIC DYES; OXADIAZOLE DIMER; MULTILAYER STRUCTURE;

D O I：

10.1143/JJAP.31.1812

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Multilayer thin-film electroluminescent devices with blue emission color have been fabricated using new oxadiazole dimer dyes for both emission and electron transport layers. Emission characteristics of three types of cells, SH-A: ITO/HTL/EML/MgAg, SH-B: ITO/EML/ETL/MgAg and DH: ITO/HTL/EML/ETL/MgAg, in which ITO, HTL, EML, ETL and MgAg represent indium-tin-oxide cathode, hole transport layer, emission layer, electron transport layer and magnesium-silver alloy anode, respectively, are compared. Luminances exceeding 1000 cd/m2 are observed and emission peaks are located at 470-480 nm. Among the three cells, the DH cell shows the best performance. The DH cell is stable for more than 40-day storage and can also be continuously driven for more than one hour at room temperature and 7 h at liquid nitrogen temperature.

引用

页码：1812 / 1816

页数：5

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