Surface modification of indium tin oxide with Ni-doped indium tin oxide coated by pyrosol process

被引：5
|
作者：
Adachi, M
Nakasa, A
Usami, H
Suzuki, E
Hirata, A
Taniguchi, Y
机构：
[1] Shinshu Univ, Fac Text Sci & Technol, Dept Fine Mat Engn, Nagano 3868567, Japan
[2] Shinshu Univ, Fac Text Sci & Technol, Dept Funct Polymer Sci, Nagano 3868567, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2006年 / 45卷 / 1B期
关键词：
work function; indium tin oxide; pyrosol process; organic light-emitting diode;
D O I：
10.1143/JJAP.45.584
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Indium tin oxide (ITO) is the most popular anode material of organic light-emitting diodes (OLEDs). To improve the performance of OLEDs, we coated ITO anodes prepared by a pyrosol process with Ni-doped ITO also using the pyrosol process. The pyrosol process, pyrolysis of an aerosol of source materials at atmospheric pressure, is a simple method of preparing ITO, in comparison with other methods that require high-vacuum operation. The work function was markedly increased from 4.7 to 5.52 eV and the sheet resistance was decreased from 20 to 9.2 Omega/rectangle, by coating ITO with Ni-doped ITO. The surface morphology and sutructure of Ni-doped ITO were studied by field-emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). Coating with Ni-doped ITO reduced turn-on voltage by 3 V and enhanced the luminance of OLEDs.
引用
收藏
页码：584 / 587
页数：4
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