Highly flexible, transparent, and low resistance indium zinc oxide-Ag-indium zinc oxide multilayer anode on polyethylene terephthalate substrate for flexible organic light-emitting diodes

被引：80

作者：

Cho, Sung-Woo ^{[1
]}

Jeong, Jin-A ^{[1
]}

Bae, Jung-Hyeok ^{[1
]}

Moon, Jong-Min ^{[1
]}

Choi, Kwang-Hyuk ^{[1
]}

Jeong, Soon Wook ^{[1
]}

Park, No-Jin ^{[1
]}

Kim, Jang-Joo ^{[2
,3
]}

Lee, Se Hyung ^{[2
,3
]}

Kang, Jae-Wook ^{[4
]}

Yi, Min-Su ^{[5
]}

Kim, Han-Ki ^{[1
]}

机构：

[1] Kumoh Natl Inst Technol KIT, Sch Adv Mat & Syst Engn, Gumi 730701, South Korea

[2] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151741, South Korea

[3] Organ Light Emitting Diodes Ctr, Seoul 151741, South Korea

[4] Korea Inst Machinery & Mat, Surface Technol Res Ctr, Changwon Si 641831, Gyeongnam, South Korea

[5] Kyungpook Natl Univ, Dept Mat Sci & Engn, Sangju 742711, Gyeongbuk, South Korea

来源：

THIN SOLID FILMS | 2008年 / 516卷 / 21期

关键词：

indium zinc oxide; IZO-Ag-IZO; anode; polyethylene terephthalate; flexible organic light-emitting diodes;

D O I：

10.1016/j.tsf.2008.06.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The characteristics of indium zinc oxide (IZO)-Ag-IZO multilayer grown on a polyethylene terephthalate (PET) substrate were investigated for flexible organic light-emitting diodes (OLEDs). The IZO-Ag-IZO (IAI) multilayer anode exhibited a remarkably reduced sheet resistance of 6.93 Omega/square and a high transmittance of 84.8%, despite the very thin thickness of the IZO (30 nm) layer. In addition, it was shown that electrical and optical properties of [A] anodes are critically dependent on the thickness of the Ag layer, due to the transition of Ag atoms from distinct islands to continuous films at a critical thickness (12 nm). Moreover, the IAI/PET sample showed more stable mechanical properties than an amorphous ITO/PET sample during the bending test due to the existence of a ductile Ag layer. The current density-voltage-luminance characteristics of flexible OLEDs fabricated on an IAI/PET substrate was better than those of flexible OLEDs fabricated on an ITO/PET substrate. This indicates that IAI multilayer anodes are promising flexible and transparent electrodes for flexible OLEDs. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：7881 / 7885

页数：5

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