Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor

被引:1125
作者
Zhang, Shaoqing [1 ,2 ]
Qin, Yunpeng [1 ,2 ]
Zhu, Jie [2 ]
Hou, Jianhui [1 ,2 ]
机构
[1] Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China
[2] Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
chlorinated polymer donors; fullerene-free acceptors; low-cost; polymer solar cells; TEMPERATURE-DEPENDENT AGGREGATION; ENERGY-LEVEL MODULATION; SMALL-MOLECULE ACCEPTOR; OPEN-CIRCUIT VOLTAGE; 13-PERCENT EFFICIENCY; BACKBONE CONFORMATION; PHOTOVOLTAIC POLYMER; ELECTRON-ACCEPTORS; FULLERENE; DESIGN;
D O I
10.1002/adma.201800868
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Fluorine-contained polymers, which have been widely used in highly efficient polymer solar cells (PSCs), are rather costly due to their complicated synthesis and low yields in the preparation of components. Here, the feasibility of replacing the critical fluorine substituents in high-performance photovoltaic polymer donors with chlorine is demonstrated, and two polymeric donors, PBDB-T-2F and PBDB-T-2Cl, are synthesized and compared in parallel. The synthesis of PBDB-T-2Cl is much simpler than that of PBDBT-2F. The two polymers have very similar optoelectronic and morphological properties, except the chlorinated polymer possess lower molecular energy levels than the fluorinated one. As a result, the PBDB-T-2Cl-based PSCs exhibit higher open circuit voltage (V-oc) than the PBDB-T-2F-based devices, leading to an outstanding power conversion efficiency of over 14%. This work establishes a more economical design paradigm of replacing fluorine with chlorine for preparing highly efficient polymer donors.
引用
收藏
页数:7
相关论文
共 39 条
[1]   Non-Fullerene Polymer Solar Cells Based on Alkylthio and Fluorine Substituted 2D-Conjugated Polymers Reach 9.5% Efficiency [J].
Bin, Haijun ;
Zhang, Zhi-Guo ;
Gao, Liang ;
Chen, Shanshan ;
Zhong, Lian ;
Xue, Lingwei ;
Yang, Changduk ;
Li, Yongfang .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2016, 138 (13) :4657-4664
[2]   Polymer solar cells with enhanced open-circuit voltage and efficiency [J].
Chen, Hsiang-Yu ;
Hou, Jianhui ;
Zhang, Shaoqing ;
Liang, Yongye ;
Yang, Guanwen ;
Yang, Yang ;
Yu, Luping ;
Wu, Yue ;
Li, Gang .
NATURE PHOTONICS, 2009, 3 (11) :649-653
[3]   Single-Junction Polymer Solar Cells Exceeding 10% Power Conversion Efficiency [J].
Chen, Jing-De ;
Cui, Chaohua ;
Li, Yan-Qing ;
Zhou, Lei ;
Ou, Qing-Dong ;
Li, Chi ;
Li, Yongfang ;
Tang, Jian-Xin .
ADVANCED MATERIALS, 2015, 27 (06) :1035-1041
[4]   Fine-Tuned Photoactive and Interconnection Layers for Achieving over 13% Efficiency in a Fullerene-Free Tandem Organic Solar Cell [J].
Cui, Yong ;
Yao, Huifeng ;
Gao, Bowei ;
Qin, Yunpeng ;
Zhang, Shaoqing ;
Yang, Bei ;
He, Chang ;
Xu, Bowei ;
Hou, Jianhui .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (21) :7302-7309
[5]   Fused Nonacyclic Electron Acceptors for Efficient Polymer Solar Cells [J].
Dai, Shuixing ;
Zhao, Fuwen ;
Zhang, Qianqian ;
Lau, Tsz-Ki ;
Li, Tengfei ;
Liu, Kuan ;
Ling, Qidan ;
Wang, Chunru ;
Lu, Xinhui ;
You, Wei ;
Zhan, Xiaowei .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (03) :1336-1343
[6]  
He ZC, 2015, NAT PHOTONICS, V9, P174, DOI [10.1038/NPHOTON.2015.6, 10.1038/nphoton.2015.6]
[7]   Design of Donor Polymers with Strong Temperature-Dependent Aggregation Property for Efficient Organic Photovoltaics [J].
Hu, Huawei ;
Chow, Philip C. Y. ;
Zhang, Guangye ;
Ma, Tingxuan ;
Liu, Jing ;
Yang, Guofang ;
Yan, He .
ACCOUNTS OF CHEMICAL RESEARCH, 2017, 50 (10) :2519-2528
[8]   Small-Molecule Acceptor Based on the Heptacyclic Benzodi(cyclopentadithiophene) Unit for Highly Efficient Nonfullerene Organic Solar Cells [J].
Kan, Bin ;
Feng, Huanran ;
Wan, Xiangjian ;
Liu, Feng ;
Ke, Xin ;
Wang, Yanbo ;
Wang, Yunchuang ;
Zhang, Hongtao ;
Li, Chenxi ;
Hou, Jianhui ;
Chen, Yongsheng .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (13) :4929-4934
[9]   Small bandgap polymers for organic solar cells (polymer material development in the last 5 years) [J].
Kroon, Renee ;
Lenes, Martijn ;
Hummelen, Jan C. ;
Blom, Paul W. M. ;
De Boer, Bert .
POLYMER REVIEWS, 2008, 48 (03) :531-582
[10]  
Li G, 2012, NAT PHOTONICS, V6, P153, DOI [10.1038/nphoton.2012.11, 10.1038/NPHOTON.2012.11]