Simple accurate system for measuring absolute photoluminescence quantum efficiency in organic solid-state thin films

被引：238

作者：

Kawamura, Y

Sasabe, H

Adachi, C

机构：

[1] Japan Sci & Technol Agcy JST, CREST Program, Tokyo 1500011, Japan

[2] CIST, Dept Photon Mat Sci, Chitose, Hokkaido 0668655, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 11A期

关键词：

photoluminescence; electroluminescence; quantum efficiency; integrating sphere; organic light emitting diode; organic thin film;

D O I：

10.1143/JJAP.43.7729

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We accurately measured the absolute photoluminescence (PL) quantum efficiency (eta(PL)) of organic solid-state thin films using an integrating sphere. We particularly measured the eta(PL) of conventional organic materials used in organic light emitting. diodes, such as a tris(8-quinolionolato)aluminum(III) complex (Alq(3)), and a 2 wt%-fac-tris(2-phenylpyridyl)iridium(III): 4,4'-bis(carbazol-9-yl)-2,2'-biphenyl [Ir(ppy)(3):CBP] co-deposited film. Alq(3) and Ir(ppy)(3):CBP showed a eta(PL) = 20 +/- 1% and 97 +/- 2%, which corresponded well to external electroluminescence efficiency using these materials. We also measured their transient PL decay and determined the radiative rate constants with their eta(PL).

引用

页码：7729 / 7730

页数：2

共 16 条

[1] Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].