Inkjet-printing of hybrid transparent conducting electrodes for organic solar cells

被引：18

作者：

Murali, Bissannagari ^{[1
]}

Kim, Do-Geun ^{[2
]}

Kang, Jae-Wook ^{[3
]}

Kim, Jihoon ^{[1
]}

机构：

[1] Kongju Natl Univ, Div Adv Mat Engn, Cheonan 331717, Chungchungnam D, South Korea

[2] Korea Inst Mat Sci, Surface Technol Div, Chang Won 641831, South Korea

[3] Chonbuk Natl Univ, Dept Flexible & Printable Elect, Jeonju 561756, South Korea

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2014年 / 211卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

inkjet printing; organic solar cells; silver; transparent conducting electrodes; CURRENT COLLECTING GRIDS;

D O I：

10.1002/pssa.201330463

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We developed metal-grid hybrid transparent conducting electrodes (TCEs) by combining a metal grid with a conducting polymer. Metal-grid hybrid TCEs were prepared by inkjet-printing with both PEDOT: PSS and Ag nanoparticle inks and applied to the fabrication of organic solar cells (OSCs) instead of indium tin oxide (ITO). The electrical and optical properties of the metal-grid hybrid TCEs were optimized by modulating the Ag grid's line-to-line spacing (pitch). With a Ag-grid pitch of 1 mm, the metal-grid hybrid TCEs exhibited a sheet resistance of 10.3 Omega sq(-1) and an optical transmittance of 73% which represented <= 10% reduction when compared to the optical transmittance of inkjet-printed PEDOT: PSS films without Ag grids. Ag covering factor (ACF) was defined using the geometry of the Ag-grid and incorporated in a theoretical model to calculate the electrical and optical properties of the inkjet-printed metal-grid hybrid TCEs. It was found that the experimental values of the TCEs' electrical and optical properties were in good agreement with the calculation results based on the ACF-incorporated theoretical model. OSCs fabricated with the metal-grid hybrid TCEs showed a power-conversion cell efficiency comparable to those of conventional OCSs using ITO. This indicates that the inkjet-printed metal-grid hybrid TCE is a promising replacement for ITO to realize cost-effective OSCs. (C) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：1801 / 1806

页数：6

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