Efficient top-emitting polymer light-emitting diodes using chromium as anode

被引：1

作者：

Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, China ^{[1
]}

不详 ^{[2
]}

机构：

[1] Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology

[2] Key Laboratory of Specially Functional Materials (Ministry of Education), South China University of Technology

来源：

Chin. Phys. Lett. | 2007年 / 7卷 / 2097-2100期

关键词：

Organic light emitting diodes (OLED) - Efficiency - Electroluminescence - Light - Chromium - Conducting polymers;

D O I：

10.1088/0256-307X/24/7/086

中图分类号：

学科分类号：

摘要：

We demonstrate a high efficiency top-emitting polymer light-emitting diode (TPLED) with chromium (Cr) taking as the anode. The TPLED structure is Cr/poly-3, 4-ethylenedioxythiophene (PEDOT:PSS)/poly [2-(4-3′,7′- dimethyloctyloxy)-phenyl]-p-phenylenevinylene) (P-PPV)/Ba/Ag. The Cr (100 nm) anode is prepared by sputter-depositing in a vacuum chamber. It is found that the device emissive properties are affected dramatically by the thickness of both PEDOT:PSS and the Ag cathode. Optimized thicknesses of PEDOT:PSS and Ag layer are 60 nm and 15 nm, respectively. The diode exhibits excellent electroluminescence (EL) properties, such as a turn-on voltage of 3.32 V, luminous efficiency of 4.41 cd/A and luminance of 6989 cd/m2 at driving voltage of about 9 V. ©2007 Chinese Physical Society and IOP Publishing Ltd.

引用

页码：2097 / 2100

页数：3