Effect of molecular weight on the properties and organic solar cell device performance of a donor-acceptor conjugated polymer

被引：72

作者：

Xiao, Zeyun ^{[1
]}

Sun, Kuan ^{[1
]}

Subbiah, Jegadesan ^{[1
]}

Qin, Tianshi ^{[2
]}

Lu, Shirong ^{[1
]}

Purushothaman, Balaji ^{[1
]}

Jones, David J. ^{[1
]}

Holmes, Andrew B. ^{[1
,2
]}

Wong, Wallace W. H. ^{[1
]}

机构：

[1] Univ Melbourne, Inst Bio21, Sch Chem, Parkville, Vic 3010, Australia

[2] CSIRO Mat Sci & Engn, Clayton, Vic 3169, Australia

来源：

POLYMER CHEMISTRY | 2015年 / 6卷 / 12期

基金：

澳大利亚研究理事会;

关键词：

STILLE COUPLING REACTION; FIELD-EFFECT MOBILITY; FLUORINATED BENZOTHIADIAZOLE; PHOTOVOLTAIC PROPERTIES; EFFICIENCY; BANDGAP; BENZODITHIOPHENE; COPOLYMER; DESIGN; ABSORPTION;

D O I：

10.1039/c4py01631a

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Donor-acceptor conjugated polymers with 2-(2-ethylhexyl)-3-hexyl thienyl substituted benzo[1,2-b:4,5-b'] dithiophene (BDT) as donor building block and 5,6-difluorobenzo[c][1,2,5] thiadiazole as acceptor building block have been synthesized by Stille coupling polymerization. The polymerization conditions were optimized to achieve high molecular weight polymers (number-average molecular weight, M-n, up to 139 kg mol(-1)). The molecular weight dependent polymer properties were studied and compared. Photovoltaic applications of the polymers in bulk heterojunction (BHJ) solar cells revealed that the power conversion efficiency increased significantly (from 0.9% to 4.1%) as the M-n increased from 10 kg mol(-1) to 73 kg mol(-1) while further increase of the molecular weight had less influence on the solar cell performance.

引用

页码：2312 / 2318

页数：7

共 51 条

[1]

Asawapirom U, 2002, SYNTHESIS-STUTTGART, P1136

[2] Exploration of the Stille coupling reaction for the syntheses of functional polymers [J].

Bao, ZN ;

Chan, WK ;

Yu, LP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (50) :12426-12435

[3] SYNTHESIS OF CONJUGATED POLYMER BY THE STILLE COUPLING REACTION [J].

BAO, ZN ;

CHAN, WK ;

YU, LP .

CHEMISTRY OF MATERIALS, 1993, 5 (01) :2-3

[4] Poly(diketopyrrolopyrrole-terthiophene) for Ambipolar Logic and Photovoltaics [J].

Bijleveld, Johan C. ;

Zoombelt, Arjan P. ;

Mathijssen, Simon G. J. ;

Wienk, Martijn M. ;

Turbiez, Mathieu ;

de Leeuw, Dago M. ;

Janssen, Rene A. J. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (46) :16616-+

[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] Stille Polycondensation for Synthesis of Functional Materials [J].

Carsten, Bridget ;

He, Feng ;

Son, Hae Jung ;

Xu, Tao ;

Yu, Luping .

CHEMICAL REVIEWS, 2011, 111 (03) :1493-1528

[8] Synthesis of Conjugated Polymers for Organic Solar Cell Applications [J].

Cheng, Yen-Ju ;

Yang, Sheng-Hsiung ;

Hsu, Chain-Shu .

CHEMICAL REVIEWS, 2009, 109 (11) :5868-5923

[9] Effects of the Molecular Weight and the Side-Chain Length on the Photovoltaic Performance of Dithienosilole/Thienopyrrolodione Copolymers [J].

Chu, Ta-Ya ;

Lu, Jianping ;

Beaupre, Serge ;

Zhang, Yanguang ;

Pouliot, Jean-Remi ;

Zhou, Jiayun ;

Najari, Ahmed ;

Leclerc, Mario ;

Tao, Ye .

ADVANCED FUNCTIONAL MATERIALS, 2012, 22 (11) :2345-2351

[10]

Coffin RC, 2009, NAT CHEM, V1, P657, DOI [10.1038/NCHEM.403, 10.1038/nchem.403]

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