Evolution of nanomorphology and anisotropic conductivity in solvent-modified PEDOT:PSS films for polymeric anodes of polymer solar cells

被引：273

作者：

Na, Seok-In ^{[1
]}

Wang, Gunuk ^{[1
]}

Kim, Seok-Soon ^{[3
]}

Kim, Tae-Wook ^{[1
]}

Oh, Seung-Hwan ^{[2
]}

Yu, Byung-Kwan ^{[1
]}

Lee, Takhee ^{[1
]}

Kim, Dong-Yu ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Mat Sci & Engn, Dept Nanobio Mat & Elect, Kwangju 500712, South Korea

[2] Res Inst Solar & Sustainable Energies, Kwangju 500712, South Korea

[3] Kunsan Natl Univ, Dept Nano & Chem Engn, Kunsan 753701, Jeollabuk Do, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 47期

关键词：

SURFACE-COMPOSITION; THIN-FILMS; EFFICIENT; MORPHOLOGY; ENHANCEMENT; IMPROVEMENT; BLENDS;

D O I：

10.1039/b915756e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A highly conductive poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) film, obtained by addition of a polar solvent, dimethylsulfoxide (DMSO), to an aqueous solution of PEDOT:PSS, was thoroughly investigated to gain a deeper understanding of the fundamental characteristics of the solvent-modified PEDOT:PSS film. Use of the DMSO-modified PEDOT:PSS film as a transparent anode to achieve low-cost and high-efficiency ITO-free organic solar cells (OSCs) based on poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C-61 (PCBM) was also examined. Changes in the conductivity, morphology, surface composition, work-function, and anisotropic conductivity in both the parallel and perpendicular directions of solventtreated PEDOT:PSS films that resulted from the addition of various amounts of DMSO were investigated to better understand the nature of the solvent-modified PEDOT:PSS film and the origin of its dramatically enhanced conductivity. Furthermore, the effects of using the modified PEDOT:PSS films as polymer anodes on solar cell performance were investigated by addition of various amounts of DMSO and by the use of PEDOT:PSS films with different thicknesses. The ITO-free OSCs with optimized PEDOT:PSS anodes had a high power conversion efficiency that was comparable to that of conventional ITO-based devices.

引用

页码：9045 / 9053

页数：9

共 50 条

[1] Printable anodes for flexible organic solar cell modules [J].

Aernouts, T ;

Vanlaeke, P ;

Geens, W ;

Poortmans, J ;

Heremans, P ;

Borghs, S ;

Mertens, R ;

Andriessen, R ;

Leenders, L .

THIN SOLID FILMS, 2004, 451 :22-25

[2] Highly efficient organic solar cells with printable low-cost transparent contacts [J].

Ahlswede, Erik ;

Muehleisen, Wolfgang ;

Wahi, Mohd Wahinuddin bin Moh ;

Hanisch, Jonas ;

Powalla, Michael .

APPLIED PHYSICS LETTERS, 2008, 92 (14)

[3]

Brabec CJ, 2001, ADV FUNCT MATER, V11, P15, DOI 10.1002/1616-3028(200102)11:1<15::AID-ADFM15>3.0.CO

[4]

2-A

[5] A mechanical assessment of flexible optoelectronic devices [J].

Chen, Z ;

Cotterell, B ;

Wang, W ;

Guenther, E ;

Chua, SJ .

THIN SOLID FILMS, 2001, 394 (1-2) :201-205

[6] The origin of the high conductivity of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT- PSS) plastic electrodes [J].

Crispin, X. ;

Jakobsson, F. L. E. ;

Crispin, A. ;

Grim, P. C. M. ;

Andersson, P. ;

Volodin, A. ;

van Haesendonck, C. ;

Van der Auweraer, M. ;

Salaneck, W. R. ;

Berggren, M. .

CHEMISTRY OF MATERIALS, 2006, 18 (18) :4354-4360

[7]

Elschner A., 2008, ORGANIC PHOTOVOLTAIC

[8] Self-assembly of a conducting polymer nanostructure by physical crosslinking:: applications to conducting blends and modified electrodes [J].

Ghosh, S ;

Inganäs, O .

SYNTHETIC METALS, 1999, 101 (1-3) :413-416

[9] Characterization of the PEDOT-PSS system by means of X-ray and ultraviolet photoelectron spectroscopy [J].

Greczynski, G ;

Kugler, T ;

Salaneck, WR .

THIN SOLID FILMS, 1999, 354 (1-2) :129-135

[10] Photoelectron spectroscopy of thin films of PEDOT-PSS conjugated polymer blend: a mini-review and some new results [J].

Greczynski, G ;

Kugler, T ;

Keil, M ;

Osikowicz, W ;

Fahlman, M ;

Salaneck, WR .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2001, 121 (1-3) :1-17

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