The influence of side chains on solubility and photovoltaic performance of dithiophene-thienopyrazine small band gap copolymers

被引：50

作者：

Zoombelt, Arjan P. ^{[1
,2
]}

Leenen, Mark A. M. ^{[1
]}

Fonrodona, Marta ^{[1
,2
]}

Nicolas, Yohann ^{[1
,2
]}

Wienk, Martijn M. ^{[1
]}

Janssen, Rene A. J. ^{[1
]}

机构：

[1] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands

[2] Dutch Polymer Inst, NL-5600 AX Eindhoven, Netherlands

来源：

POLYMER | 2009年 / 50卷 / 19期

关键词：

Polymer synthesis; Polymer composite materials; Photovoltaics; POLYMER SOLAR-CELLS; OPEN-CIRCUIT VOLTAGE; SEMICONDUCTING POLYMERS; MORPHOLOGY; HETEROJUNCTIONS; POLYFLUORENE; EFFICIENCY; BLENDS;

D O I：

10.1016/j.polymer.2009.07.028

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Three small band gap copolymers based on alternating dithiophene and thienopyrazine units were synthesized via Yamamoto coupling and applied in bulk heterojunction solar cells as donor together with PCBM ([6,6]-phenyl C-61 butyric acid methyl ester) as acceptor. The polymers have an optical band gap of about 1.3 eV in the solid state and only vary by the chemical nature of the solubilizing side chains. The nature of the side chain has a major effect on solubility and processability of the polymer. Using n-butoxymethyl side chains a soluble, easy to process polymer was obtained that gave the best photovoltaic performance. With short-circuit currents up to 5.2 mA/cm(2) an efficiency of 0.8% was achieved under estimated standard solar light conditions (AM1.5G, 100 mW/cm(2)) with spectral response up to 950 nm. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：4564 / 4570

页数：7

共 43 条

[1]

Brabec CJ, 2001, ADV FUNCT MATER, V11, P374, DOI 10.1002/1616-3028(200110)11:5<374::AID-ADFM374>3.0.CO

[2]

2-W

[3] Extended photocurrent spectrum of a low band gap polymer in a bulk heterojunction solar cell [J].

Campos, LM ;

Tontcheva, A ;

Günes, S ;

Sonmez, G ;

Neugebauer, H ;

Sariciftci, NS ;

Wudl, F .

CHEMISTRY OF MATERIALS, 2005, 17 (16) :4031-4033

[4] X-ray scattering study of thin films of poly(2,5-bis(3-alkylthiophen-2-yl)thieno[3,2-b]thiophene) [J].

Chabinyc, Michael L. ;

Toney, Michael F. ;

Kline, R. Joseph ;

McCulloch, Iain ;

Heeney, Martin .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (11) :3226-3237

[5] High open-circuit voltage poly(ethynylene bithienylene):: Fullerene solar cells [J].

Cremer, Jens ;

Baeuerle, Peter ;

Wienk, Martijn M. ;

Janssen, Rene A. J. .

CHEMISTRY OF MATERIALS, 2006, 18 (25) :5832-5834

[6] Stability of n-type doped conducting polymers and consequences for polymeric microelectronic devices [J].

deLeeuw, DM ;

Simenon, MMJ ;

Brown, AR ;

Einerhand, REF .

SYNTHETIC METALS, 1997, 87 (01) :53-59

[7]

Dhanabalan A, 2001, ADV FUNCT MATER, V11, P255, DOI 10.1002/1616-3028(200108)11:4<255::AID-ADFM255>3.0.CO

[8]

2-I

[9] Correlation between oxidation potential and open-circuit voltage of composite solar cells based on blends of polythiophenes/fullerene derivative [J].

Gadisa, A ;

Svensson, M ;

Andersson, MR ;

Inganäs, O .

APPLIED PHYSICS LETTERS, 2004, 84 (09) :1609-1611

[10] The interplay of efficiency and morphology in photovoltaic devices based on interpenetrating networks of conjugated polymers with fullerenes [J].

Gebeyehu, D ;

Brabec, CJ ;

Padinger, F ;

Fromherz, T ;

Hummelen, JC ;

Badt, D ;

Schindler, H ;

Sariciftci, NS .

SYNTHETIC METALS, 2001, 118 (1-3) :1-9

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