ITO-free inverted organic solar cells fabricated with transparent and low resistance ZnO/Ag/ZnO multilayer electrode

被引：16
作者：
Kim, Jun Ho [1 ]
Kang, Tae-Woon [2 ,3 ]
Na, Seok-In [2 ,3 ]
Yoo, Young-Zo [4 ]
Seong, Tae-Yeon [1 ]
机构：
[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea
[2] Chonbuk Natl Univ, Profess Grad Sch Flexible & Printable Elect, Jeonju 561756, Jeollabuk Do, South Korea
[3] Chonbuk Natl Univ, Polymer Mat Fus Res Ctr, Jeonju 561756, Jeollabuk Do, South Korea
[4] Duksan Hi Met Co Ltd, Ulsan 683804, South Korea
来源：
CURRENT APPLIED PHYSICS | 2015年 / 15卷 / 07期
关键词：
ZnO; Ag; Multilayer; Transparent conducting electrode; Organic solar cell; THIN-FILMS; POLYMER; DESIGN;
D O I：
10.1016/j.cap.2015.05.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Inverted organic solar cells (OSCs) based on poly (3-hexylthiophene) (P3HT):[ 6,6]-phenyl-C61 butyric acid methyl ester (PCBM) bulk heterojunctions (BHJ) were fabricated with optimized ZnO/Ag/ZnO multilayer and conventional indium-tin oxide (ITO) cathode electrodes and their performance was compared. The ZnO/Ag/ZnO multilayer films showed sheet resistances in the range 3.6-3.9 Omega/sq, while ITO exhibited 14.2 Omega/sq. On the one hand, the carrier concentration gradually decreased from 1.74 x 10(22) to 4.33 x 10(21) cm(-3) as the ZnO thickness increased from 8 to 80 nm, respectively. The transmittance of the ZnO(40 nm)/Ag(19 nm)/ZnO(40 nm) films was similar to 95% at 550 nm, which is comparable to that of ITO (similar to 96%). The multilayer films were smooth with a root mean square (RMS) roughness of 0.81 nm. OSCs fabricated with the ZnO(40 nm)/Ag(19 nm)/ZnO(40 nm) film showed a power conversion efficiency (2.63%) comparable to that of OSCs with a conventional ITO cathode (2.71%). (C) 2015 Elsevier B.V. All rights reserved.
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收藏
页码：829 / 832
页数：4
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