Relationship between surface roughness of indium tin oxide and leakage current of organic light-emitting diode

被引:100
作者
Kim, KB
Tak, YH
Han, YS
Baik, KH
Yoon, MH
Lee, MH
机构
[1] Yeungnam Univ, Dept Appl Elect, Kyongsan 712749, South Korea
[2] LG Elect, LG Elite, OLED Div, Kumi 730030, South Korea
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2003年 / 42卷 / 4B期
关键词
indium tin oxide; organic light emitting diode; surface roughness; leakage current;
D O I
10.1143/JJAP.42.L438
中图分类号
O59 [应用物理学];
学科分类号
摘要
The relationship between surface roughness of indium tin oxide (ITO) and leakage current of organic light-emitting diode (OLED) was investigated. The surface roughness of ITO was measured with atomic force microscope (AFM) before the device fabrication by using these substrates, OLEDs were fabricated and their electrical properties were measured. leakage current of OLEDs depending on the surface roughness of the substrate. In this letter, we report that leakage currents of OLEDs are highly dependent on the peak-to-valley roughness (Rpv) of ITO.
引用
收藏
页码:L438 / L440
页数:3
相关论文
共 6 条
[1]   Effect of indium tin oxide substrate roughness on the morphology, structural and optical properties of CdS thin films [J].
Castro-Rodríguez, R ;
Oliva, AI ;
Sosa, V ;
Caballero-Briones, F ;
Peña, JL .
APPLIED SURFACE SCIENCE, 2000, 161 (3-4) :340-346
[2]   The initial state of dark spots in degradation of polymer lighting-emitting diodes [J].
Do, LM ;
Hwang, DH ;
Chu, HY ;
Kim, SH ;
Lee, JI ;
Park, H ;
Zyung, T .
SYNTHETIC METALS, 2000, 111 :249-251
[3]   Electroluminescence in conjugated polymers [J].
Friend, RH ;
Gymer, RW ;
Holmes, AB ;
Burroughes, JH ;
Marks, RN ;
Taliani, C ;
Bradley, DDC ;
Dos Santos, DA ;
Brédas, JL ;
Lögdlund, M ;
Salaneck, WR .
NATURE, 1999, 397 (6715) :121-128
[4]  
JONDA C, 2000, J MATER SCI, V35, P5635
[5]   ORGANIC ELECTROLUMINESCENT DIODES [J].
TANG, CW ;
VANSLYKE, SA .
APPLIED PHYSICS LETTERS, 1987, 51 (12) :913-915
[6]   Surface modification of indium tin oxide by plasma treatment: An effective method to improve the efficiency, brightness, and reliability of organic light emitting devices [J].
Wu, CC ;
Wu, CI ;
Sturm, JC ;
Kahn, A .
APPLIED PHYSICS LETTERS, 1997, 70 (11) :1348-1350