Enhanced Performance of Bulk Heterojunction Solar Cells Using Block Copoly(3-alkylthiophene)s

被引：95

作者：

Ren, Guoqiang ^{[1
]}

Wu, Pei-Tzu ^{[1
]}

Jenekhe, Samson A. ^{[1
,2
]}

机构：

[1] Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA

[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA

来源：

CHEMISTRY OF MATERIALS | 2010年 / 22卷 / 06期

关键词：

CHARGE-TRANSPORT; PHOTOVOLTAIC PROPERTIES; CONJUGATED COPOLYMERS; MICROPHASE SEPARATION; DIBLOCK COPOLYMER; CHAIN-LENGTH; MORPHOLOGY; DONOR; METHANOFULLERENE; NANOSTRUCTURES;

D O I：

10.1021/cm903783w

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：

The photovoltaic properties, charge transport, and morphology of a series of diblock conjugated copolymers, poly(3-butylthiophene)-b-poly(3-octylthiophene) (P3BT-b-P3OT), were investigated as a functional of block composition. Bulk heterojunction solar cells comprising blends of P3BT-b-P3OT and [6,6]-phenyl-C-71-butyric acid methyl ester (PC71BM) were found to have power conversion effeciencies as high as 3.0% which represents factors of 1.6-9 enhancements compared to those of the homopolymers made under simiar conditions. Imaging of P3BT-b-P3OT/PC71BM blends by atomic force microscopy and transmission electron microscopy revealed interpenetrating network with 11-18 nm crystalline polymer domains. The zero-field spae charge limited current mobility of holes(similar to(1-3) x 10(-4) cm(2) V-1 s(-1)) was similarly enhanced in the diblock copolymer solar cells compared to the homopolymers. These results demonstrate that block conjugated copolymers offer a promising approach to advanced materials for polymer solar cells and that the block composition is an attractive means to optimize the materials.

引用

页码：2020 / 2026

页数：7

共 44 条

[1] Efficient solar cells from layered nanostructures of donor and acceptor conjugated polymers [J].

Alam, MM ;

Jenekhe, SA .

CHEMISTRY OF MATERIALS, 2004, 16 (23) :4647-4656

[2] Alkyl chain length dependence of the field-effect carrier mobility in regioregular poly(3-alkylthiophene)s [J].

Babel, A ;

Jenekhe, SA .

SYNTHETIC METALS, 2005, 148 (02) :169-173

[3] Device physics of polymer:fullerene bulk heterojunction solar cells [J].

Blom, Paul W. M. ;

Mihailetchi, Valentin D. ;

Koster, L. Jan Anton ;

Markov, Denis E. .

ADVANCED MATERIALS, 2007, 19 (12) :1551-1566

[4] 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

[5] Self-Assembly of Poly(3-hexylthiophene)-block-polylactide Block Copolymer and Subsequent Incorporation of Electron Acceptor Material [J].

Botiz, Ioan ;

Darling, Seth B. .

MACROMOLECULES, 2009, 42 (21) :8211-8217

[6] The Role of Mesoscopic PCBM Crystallites in Solvent Vapor Annealed Copolymer Solar Cells [J].

Bull, Tricia A. ;

Pingree, Liam S. C. ;

Jenekhe, Samson A. ;

Ginger, David S. ;

Luscombe, Christine K. .

ACS NANO, 2009, 3 (03) :627-636

[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] Block conjugated copolymers: Toward quantum-well nanostructures for exploring spatial confinement effects on electronic, optoelectronic, and optical phenomena [J].

Chen, XL ;

Jenekhe, SA .

MACROMOLECULES, 1996, 29 (19) :6189-6192

[9] Block Copolymer Morphologies in Dye-Sensitized Solar Cells: Probing the Photovoltaic Structure-Function Relation [J].

Crossland, Edward J. W. ;

Nedelcu, Mihaela ;

Ducati, Caterina ;

Ludwigs, Sabine ;

Hillmyer, Marc A. ;

Steiner, Ullrich ;

Snaith, Henry J. .

NANO LETTERS, 2009, 9 (08) :2813-2819

[10] A Bicontinuous Double Gyroid Hybrid Solar Cell [J].

Crossland, Edward J. W. ;

Kamperman, Marleen ;

Nedelcu, Mihaela ;

Ducati, Caterina ;

Wiesner, Ulrich ;

Smilgies, Detlef -M. ;

Toombes, Gilman E. S. ;

Hillmyer, Marc A. ;

Ludwigs, Sabine ;

Steiner, Ullrich ;

Snaith, Henry J. .

NANO LETTERS, 2009, 9 (08) :2807-2812

← 1 2 3 4 5 →