Mechanical integrity of flexible InZnO/Ag/InZnO multilayer electrodes grown by continuous roll-to-roll sputtering

被引：64

作者：

Choa, Sung-Hoon ^{[2
]}

Cho, Chung-Ki ^{[1
]}

Hwang, Woo-Jin ^{[2
]}

Eun, Kyung Tae ^{[2
]}

Kim, Han-Ki ^{[1
]}

机构：

[1] Kyung Hee Univ, Dept Adv Mat Engn Informat & Elect, Yongin 446701, Gyeonggi Do, South Korea

[2] Seoul Natl Univ Sci & Technol, Grad Sch NID Fus Technol, Seoul 139743, South Korea

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2011年 / 95卷 / 12期

关键词：

Mechanical integrity; IZO/Ag/IZO; Roll-to-roll sputtering; Flexibility; Bending test; Flexible electrode; DOPED INDIUM OXIDE; THIN-FILMS; TRANSPARENT; RESISTANCE; SUBSTRATE; EFFICIENT;

D O I：

10.1016/j.solmat.2011.08.001

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The mechanical integrity of a flexible ZnO-doped In2O3 (IZO)/Ag/IZO multilayer electrode deposited onto a flexible PET substrate using a continuous roll-to-roll (R2R) sputtering system was investigated by means of outer/inner bending, twisting and stretching tests. The R2R-sputtered flexible IZO (40 nm)/Ag (12 nm)/IZO (40 nm) electrode with a sheet resistance of 5.37 Omega/sq and an optical transmittance of 87.3% exhibited superior flexibility due to existence of a ductile Ag layer with high strain failure. It was noteworthy that the failure bending radius (5.5 mm) of the inner bending test was lower than that (6.5 mm) of the outer bending test due to complete separation of the cracks on the top IZO layer during the outer bending test. In addition, the twisting test showed that the resistance of the flexible IZO/Ag/IZO electrode began to increase at an angle of 26 degrees. Furthermore the stretching test demonstrated that the strain failure of the IZO/Ag/IZO multilayer was 2.4%, which is higher than those of conventional flexible ITO electrodes. The mechanical integrity of the R2R-sputtered IZO/Ag/IZO multilayer indicated that hybridization of an oxide and Ag metal is a promising flexible electrode scheme for next generation flexible organic solar cells. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：3442 / 3449

页数：8