Synthesis of novel narrow-band-gap copolymers based on [1,2,5]thiadiazolo[3,4-f] benzotriazole and their application in bulk-heterojunction photovoltaic devices

被引：41

作者：

Dong, Yang ^{[1
]}

Cai, Wanzhu ^{[1
]}

Hu, Xiaowen ^{[1
]}

Zhong, Chengmei ^{[1
]}

Huang, Fei ^{[1
]}

Cao, Yong ^{[1
]}

机构：

[1] S China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China

来源：

POLYMER | 2012年 / 53卷 / 07期

关键词：

1,2,5]Thiadiazolo[3,4-f]benzotriazole; Alternating copolymer; Polymer solar cells; CONJUGATED POLYMER; SOLAR-CELLS; HOMO LEVEL; DONOR; EFFICIENCY; BENZOTHIADIAZOLE; CHROMOPHORES; POLYFLUORENE;

D O I：

10.1016/j.polymer.2012.02.014

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two novel conjugated alternating copolymers with [1,2,5]thiadiazolo[3,4-f]benzotriazole as acceptor and 9,9-dioctylfluorene or N-9'-heptadecanyl-carbazole as donors respectively, were synthesized by Suzuki polycondensation. Both of the two copolymers have nearly ideal band gaps and show excellent absorption spectra in near infrared region. Polymer solar cells based on the blends of them and [6,6]-phenyl-C-71 butyric acid methyl ester show excellent performance when using a water/alcohol soluble conjugated polymer as cathode interlayer, which exhibit a maximum power conversion efficiency of 3.17% with the short-circuit current density of 8.50 mA/cm(2), the open-circuit voltage of 0.70 V and the fill factor of 41%. Our results demonstrate that [1,2,5]thiadiazolo[3,4-f]benzotriazole is a promising acceptor unit for low band gap polymer donor materials design. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1465 / 1472

页数：8

共 53 条

[1] Synthesis and characterization of novel dipyridylbenzothiadiazole and bisbenzothiadiazole derivatives [J].

Akhtaruzzaman, M ;

Tomura, M ;

Nishida, J ;

Yamashita, Y .

JOURNAL OF ORGANIC CHEMISTRY, 2004, 69 (09) :2953-2958

[2] Processable Multipurpose Conjugated Polymer for Electrochromic and Photovoltaic Applications [J].

Baran, Derya ;

Balan, Abidin ;

Celebi, Selin ;

Esteban, Beatriz Meana ;

Neugebauer, Helmut ;

Sariciftci, N. Serdar ;

Toppare, Levent .

CHEMISTRY OF MATERIALS, 2010, 22 (09) :2978-2987

[3] 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-+

[4]

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

[5]

2-W

[6] Low-band-gap conjugated polymers based on thiophene, benzothiadiazole, and benzobis(thiadiazole) [J].

Bundgaard, E ;

Krebs, FC .

MACROMOLECULES, 2006, 39 (08) :2823-2831

[7] Development of Novel Conjugated Donor Polymers for High-Efficiency Bulk-Heterojunction Photovoltaic Devices [J].

Chen, Junwu ;

Cao, Yong .

ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (11) :1709-1718

[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] Conjugated polymer photovoltaic cells [J].

Coakley, KM ;

McGehee, MD .

CHEMISTRY OF MATERIALS, 2004, 16 (23) :4533-4542

[10] 9-Alkylidene-9H-Fluorene-Containing Polymer for High-Efficiency Polymer Solar Cells [J].

Du, Chun ;

Li, Cuihong ;

Li, Weiwei ;

Chen, Xiong ;

Bo, Zhishan ;

Veit, Clemens ;

Ma, Zaifei ;

Wuerfel, Uli ;

Zhu, Hongfei ;

Hu, Wenping ;

Zhang, Fengling .

MACROMOLECULES, 2011, 44 (19) :7617-7624

← 1 2 3 4 5 6 →