Efficient inverted polymer solar cells incorporating doped organic electron transporting layer

被引：56

作者：

Xu, Zai-Quan ^{[1
]}

Yang, Jin-Peng ^{[1
]}

Sun, Fu-Zhou ^{[1
]}

Lee, Shuit-Tong ^{[2
]}

Li, Yan-Qing ^{[1
]}

Tang, Jian-Xin ^{[1
]}

机构：

[1] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China

[2] City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

来源：

ORGANIC ELECTRONICS | 2012年 / 13卷 / 04期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

Polymer solar cell; Inverted structure; Organic electron transporting layer; n-Type doping; PERFORMANCE; OXIDE;

D O I：

10.1016/j.orgel.2012.01.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An efficient inverted polymer solar cell is enabled by incorporating an n-type doped wide-gap organic electron transporting layer (ETL) between the indium tin oxide cathode and the photoactive layer for electron extraction. The ETL is formed by a thermal-deposited cesium carbonate-doped 4,7-diphenyl-1,10-phenanthroline (Cs2CO3:BPhen) layer. The cell response parameters critically depended on the doping concentration and film thickness of the Cs2CO3:BPhen ETL. Inverted polymer solar cell with an optimized Cs2CO3:BPhen ETL exhibits a power conversion efficiency of 4.12% as compared to 1.34% for the device with a pristine BPhen ETL. The enhanced performance in the inverted device is associated with the favorable energy level alignment between Cs2CO3:BPhen and the electron-acceptor material, as well as increased conductivity in the doped organic ETL for electron extraction. The method reported here provides a facile approach to optimize the performance of inverted polymer solar cells in terms of easy control of film morphology, chemical composition, conductivity at low processing temperature, as well as compatibility with fabrication on flexible substrates. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：697 / 704

页数：8

共 35 条

[1] Electronic structures of MoO3-based charge generation layer for tandem organic light-emitting diodes [J].

Bao, Q. Y. ;

Yang, J. P. ;

Li, Y. Q. ;

Tang, J. X. .

APPLIED PHYSICS LETTERS, 2010, 97 (06)

[2] Toward a rational design of poly(2,7-carbazole) derivatives for solar cells [J].

Blouin, Nicolas ;

Michaud, Alexandre ;

Gendron, David ;

Wakim, Salem ;

Blair, Emily ;

Neagu-Plesu, Rodica ;

Belletete, Michel ;

Durocher, Gilles ;

Tao, Ye ;

Leclerc, Mario .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (02) :732-742

[3] Polymer-Fullerene Bulk-Heterojunction Solar Cells [J].

Brabec, Christoph J. ;

Gowrisanker, Srinivas ;

Halls, Jonathan J. M. ;

Laird, Darin ;

Jia, Shijun ;

Williams, Shawn P. .

ADVANCED MATERIALS, 2010, 22 (34) :3839-3856

[4] Effect of LiF/metal electrodes on the performance of plastic solar cells [J].

Brabec, CJ ;

Shaheen, SE ;

Winder, C ;

Sariciftci, NS ;

Denk, P .

APPLIED PHYSICS LETTERS, 2002, 80 (07) :1288-1290

[5] Mechanism of Cs2CO3 as an n-type dopant in organic electron-transport film [J].

Cai, Y. ;

Wei, H. X. ;

Li, J. ;

Bao, Q. Y. ;

Zhao, X. ;

Lee, S. T. ;

Li, Y. Q. ;

Tang, J. X. .

APPLIED PHYSICS LETTERS, 2011, 98 (11)

[6] Efficient organic photovoltaic devices using a combination of exciton blocking layer and anodic buffer layer [J].

Chan, M. Y. ;

Lee, C. S. ;

Lai, S. L. ;

Fung, M. K. ;

Wong, F. L. ;

Sun, H. Y. ;

Lau, K. M. ;

Lee, S. T. .

JOURNAL OF APPLIED PHYSICS, 2006, 100 (09)

[7] Recent Progress in Polymer Solar Cells: Manipulation of Polymer: Fullerene Morphology and the Formation of Efficient Inverted Polymer Solar Cells [J].

Chen, Li-Min ;

Hong, Ziruo ;

Li, Gang ;

Yang, Yang .

ADVANCED MATERIALS, 2009, 21 (14-15) :1434-1449

[8] Electrical and Optical Properties of ZnO Processed by Atomic Layer Deposition in Inverted Polymer Solar Cells [J].

Cheun, Hyeunseok ;

Fuentes-Hernandez, Canek ;

Zhou, Yinhua ;

Potscavage, William J., Jr. ;

Kim, Sung-Jin ;

Shim, Jaewon ;

Dindar, Amir ;

Kippelen, Bernard .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (48) :20713-20718

[9] n-Doping of thermally polymerizable fullerenes as an electron transporting layer for inverted polymer solar cells [J].

Cho, Namchul ;

Yip, Hin-Lap ;

Hau, Steven K. ;

Chen, Kung-Shih ;

Kim, Tae-Wook ;

Davies, Joshua A. ;

Zeigler, David F. ;

Jen, Alex K. -Y. .

JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (19) :6956-6961

[10] Polymer-Fullerene Bulk-Heterojunction Solar Cells [J].

Dennler, Gilles ;

Scharber, Markus C. ;

Brabec, Christoph J. .

ADVANCED MATERIALS, 2009, 21 (13) :1323-1338

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