Multiwalled carbon nanotube sheets as transparent electrodes in high brightness organic light-emitting diodes

被引：79

作者：

Williams, Christopher D. ^{[1
,2
]}

Robles, Raquel Ovalle ^{[1
,2
]}

Zhang, Mei ^{[1
]}

Li, Sergey ^{[1
]}

Baughman, Ray H. ^{[1
,3
]}

Zakhidov, Anvar A. ^{[1
,2
]}

机构：

[1] Univ Texas Dallas, NanoTech Inst, Richardson, TX 75083 USA

[2] Univ Texas Dallas, Dept Phys, Richardson, TX 75083 USA

[3] Univ Texas Dallas, Dept Chem, Richardson, TX 75083 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 18期

关键词：

carbon nanotubes; electrochemical electrodes; indium compounds; nanotube devices; organic light emitting diodes; polymers;

D O I：

10.1063/1.3006436

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have fabricated efficient organic light emitting diodes using strong, transparent carbon nanotube (CNT) sheets as the hole-injecting anode. These devices show a brightness of 4500 cd/m(2) and current efficiency near 2.5 cd/A, which is close to the efficiency we achieve with a similar device, which uses indium tin oxide (ITO) as the anode. We demonstrate that proper planarization of the electrode using the water-soluble polymer poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) is necessary for achieving high efficiency and can be accomplished by spin casting multiple layers. We believe that increased conductivity of the sheets could lead to CNT-based devices with efficiencies exceeding those on ITO.

引用

页数：3

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