Low band gap polymers based on 1,4-dialkoxybenzene, thiophene, bithiophene donors and the benzothiadiazole acceptor

被引：43

作者：

Carle, Jon Eggert ^{[1
]}

Andreasen, Jens Wenzel ^{[1
]}

Jorgensen, Mikkel ^{[1
]}

Krebs, Frederik Christian ^{[1
]}

机构：

[1] Tech Univ Denmark, Riso Natl Lab Sustainable Energy, Solar Energy Program, DK-4000 Roskilde, Denmark

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2010年 / 94卷 / 05期

关键词：

Polymer photovoltaics; Low band gap; SOLAR-CELLS; LARGE-AREA; PERFORMANCE;

D O I：

10.1016/j.solmat.2009.12.023

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Four new copolymers of 1,4-dialkoxybenzene, thiophene, bithiophene and benzothiadiazole have been prepared and investigated for optical properties and in photovoltaic devices. The structures were chosen to show the effect of successively introducing an acceptor moiety, longer alkoxy side chains and finally, substituting thiophene for bithiophene. The absorption spectra and IPCE showed that these are low band gap polymers that can harvest light in the visible spectrum (400 to 700 nm) and that photoelectrons are generated in the whole range. The photovoltaic devices produced short circuit current densities (J(sc)) of 2.6 to 4.6 mA/cm(2) under AM1.5 G illumination. The open circuit voltage (V-oc) was 0.56 to 0.64 V and the efficiencies (eta) of 0.8% to 2.2% depending on the structure. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：774 / 780

页数：7

共 41 条

[1] Investigation of chromophore-chromophore interaction by electro-optic measurements, linear dichroism, x-ray scattering, and density-functional calculations [J].

Apitz, D ;

Bertram, RP ;

Benter, N ;

Hieringer, W ;

Andreasen, JW ;

Nielsen, MM ;

Johansen, PM ;

Buse, K .

PHYSICAL REVIEW E, 2005, 72 (03)

[2] A low-bandgap poly(2,7-carbazole) derivative for use in high-performance solar cells [J].

Blouin, Nicolas ;

Michaud, Alexandre ;

Leclerc, Mario .

ADVANCED MATERIALS, 2007, 19 (17) :2295-+

[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]

Brabec CJ, 2002, ADV FUNCT MATER, V12, P709, DOI 10.1002/1616-3028(20021016)12:10<709::AID-ADFM709>3.0.CO

[6]

2-N

[7] Poly(thiophenes) derivatized with oligo(oxyethylene) chains as donor materials for organic solar cells [J].

Bricaud, Quentin ;

Cravino, Antonio ;

Leriche, Philippe ;

Roncali, Jean .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2009, 93 (09) :1624-1629

[8] A comparison of the photovoltaic response of head-to-head and head-to-tail coupled poly{(benzo-2,1,3-thiadiazol-4,7-diyl)-(dihexyl[2,2′]dithiophene-5,5′-diyl} [J].

Bundgaard, E ;

Krebs, FC .

POLYMER BULLETIN, 2005, 55 (03) :157-164

[9] Bulk heterojunctions based on a low band gap copolymer of thiophene and benzothiadiazole [J].

Bundgaard, Eva ;

Shaheen, Sean E. ;

Krebs, Frederik C. ;

Ginley, David S. .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2007, 91 (17) :1631-1637

[10] Low band gap polymers for organic photovoltaics [J].

Bundgaard, Eva ;

Krebs, Frederik C. .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2007, 91 (11) :954-985

← 1 2 3 4 5 →