Issue 4, 2005
From the journal:

Journal of Materials Chemistry

Organic light-emitting diodes based on charge-neutral Os(ii) emitters: generation of saturated red emission with very high external quantum efficiency

Yung-Liang Tung,a   Shin-Wun Lee,a   Yun Chi,*a   Yu-Tai Tao,*b   Chin-Hsiung Chien,b   Yi-Ming Cheng,c   Pi-Tai Chou,*c   Shie-Ming Pengc  and  Chao-Shiuan Liud  

* Corresponding authors

a Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan
E-mail: ychi@mx.nthu.edu.tw

b Institute of Chemistry, Academia Sinica, Taipei, Taiwan
E-mail: ytt@chem.sinica.edu.tw

c Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei, Taiwan
E-mail: chop@ntu.edu.tw

d Department of Chemistry, SooChow University, Taipei, Taiwan

Abstract

The OLED device using 6% of Os(fptz)2(PPh2Me)2 as the dopant emitter in a CBP host and BPAPF as hole transporting material shows an external quantum efficiency of 15.3% and luminous efficiency of 21.3 cd A−1, power efficiency of 6.3 lm W−1 at 20 mA cm−2. An even higher external quantum efficiency of ∼20% was achieved at a low current density of ∼1 mA cm−2.

Graphical abstract: Organic light-emitting diodes based on charge-neutral Os(ii) emitters: generation of saturated red emission with very high external quantum efficiency

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Article information

DOI
https://doi.org/10.1039/B414636K
Article type
Communication
Submitted
21 Sep 2004
Accepted
10 Nov 2004
First published
01 Dec 2004

J. Mater. Chem., 2005,15, 460-464

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Organic light-emitting diodes based on charge-neutral Os(II) emitters: generation of saturated red emission with very high external quantum efficiency

Y. Tung, S. Lee, Y. Chi, Y. Tao, C. Chien, Y. Cheng, P. Chou, S. Peng and C. Liu, J. Mater. Chem., 2005, 15, 460 DOI: 10.1039/B414636K

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