Impact of Alkyl Side Chains on Optoelectronic and Photovoltaic Properties of Novel Benzodithiophenedione-Based Conjugated Polymers

被引：5
作者：
Akkuratov, Alexander [1 ]
Martinov, Ilya [1 ]
Avilova, Irina [1 ]
Troshin, Pavel [1 ,2 ]
机构：
[1] RAS, IPCP, Academician Semenov Ave 1, Chernogolovka 142432, Moscow Region, Russia
[2] Skolkovo Inst Sci & Technol, Nobel St 3, Moscow 143025, Russia
来源：
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2019年 / 13卷 / 09期
基金：
俄罗斯科学基金会;
关键词：
benzodithiophene-4; 8-dione; benzothiadiazole; conjugated polymers; organic solar cells; photovoltaics; OPEN-CIRCUIT VOLTAGE; ORGANIC SOLAR-CELLS; EFFICIENT; DEGRADATION; ABSORPTION; GENERATION; ENABLES; ORIGIN; UNITS;
D O I：
10.1002/pssr.201900154
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two novel donor-acceptor conjugated polymers comprising benzo[1,2-c:4,5-c ']dithiophene-4,8-dione and an extended TTBTBTT system (thiophene-T, benzothiadiazole-B) with different alkyl side chains are synthesized and investigated. It is found that the length of alkyl side chains has a strong influence on energy levels, film morphology, and charge-carrier mobility of the designed polymers. Organic solar cells based on polymer P2 with bulky 2-hexyldecyl side chains demonstrate significantly improved photovoltaic performances as compared to the devices based on P1 bearing relatively small 2-ethylhexyl solubilizing groups.
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页数：7
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共 56 条
[51]   Efficient methano[70]fullerene/MDMO-PPV bulk heterojunction photovoltaic cells [J].
Wienk, MM ;
Kroon, JM ;
Verhees, WJH ;
Knol, J ;
Hummelen, JC ;
van Hal, PA ;
Janssen, RAJ .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (29) :3371-3375
[52]   Highly efficient random terpolymers for photovoltaic applications with enhanced absorption and molecular aggregation [J].
Xu, Xiao-peng ;
Zhang, Guang-jun ;
Zhao, Yun-zhe ;
Liu, Jiang ;
Li, Ying ;
Peng, Qiang .
CHINESE JOURNAL OF POLYMER SCIENCE, 2017, 35 (02) :249-260
[53]   Selenium-Containing Medium Bandgap Copolymer for Bulk Heterojunction Polymer Solar Cells with High Efficiency of 9.8% [J].
Xu, Zhuo ;
Fan, Qunping ;
Meng, Xiangyi ;
Guo, Xia ;
Su, Wenyan ;
Ma, Wei ;
Zhang, Maojie ;
Li, Yongfang .
CHEMISTRY OF MATERIALS, 2017, 29 (11) :4811-4818
[54]   Low band-gap conjugated polymer based on diketopyrrolopyrrole units and its application in organic photovoltaic cells [J].
Zhang, Hao ;
Zhang, Shaoqing ;
Gao, Ke ;
Liu, Feng ;
Yao, Huifeng ;
Yang, Bei ;
He, Chang ;
Russell, Thomas P. ;
Hou, Jianhui .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (21) :10416-10423
[55]   Efficient organic solar cells processed from hydrocarbon solvents [J].
Zhao, Jingbo ;
Li, Yunke ;
Yang, Guofang ;
Jiang, Kui ;
Lin, Haoran ;
Ade, Harald ;
Ma, Wei ;
Yan, He .
NATURE ENERGY, 2016, 1
[56]   Molecular Optimization Enables over 13% Efficiency in Organic Solar Cells [J].
Zhao, Wenchao ;
Li, Sunsun ;
Yao, Huifeng ;
Zhang, Shaoqing ;
Zhang, Yun ;
Yang, Bei ;
Hou, Jianhui .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (21) :7148-7151
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