Alkyl Chain Tuning of Small Molecule Acceptors for Efficient Organic Solar Cells

被引:854
作者
Jiang, Kui [1 ,2 ,3 ]
Wei, Qingya [1 ]
Lai, Joshua Yuk Lin [2 ,3 ]
Peng, Zhengxing [4 ,5 ]
Kim, Ha Kyung [2 ,3 ]
Yuan, Jun [1 ]
Ye, Long [4 ,5 ]
Ade, Harald [4 ,5 ]
Zou, Yingping [1 ]
Yan, He [2 ,3 ,6 ]
机构
[1] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China
[2] HKUST, Dept Chem, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
[3] HKUST, Hong Kong Branch, Chinese Natl Engn Res Ctr Tissue Restorat & Recon, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
[4] North Carolina State Univ, Dept Phys, Raleigh, NC USA
[5] North Carolina State Univ, ORaCEL, Raleigh, NC USA
[6] eFlexPV Ltd, Jinxiu Sci Pk, Shenzhen, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
POLYMER PHOTOVOLTAIC CELLS; DONOR POLYMER; ORIENTATION; PERFORMANCE; MISCIBILITY; DESIGN;
D O I
10.1016/j.joule.2019.09.010
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The field of organic solar cells has seen rapid developments after the report of a high-efficiency (15.7%) small molecule acceptor (SMA) named Y6. In this paper, we design and synthesize a family of SMAs with an aromatic backbone identical to that of Y6 but with different alkyl chains to investigate the influence of alkyl chains on the properties and performance of the SMAs. First, we show that it is beneficial to use branched alkyl chains on the nitrogen atoms of the pyrrole motif of the Y6. In addition, the branching position of the alkyl chains also has a major influence on material and device properties. The SMA with 3rd-position branched alkyl chains (named N3) exhibits optimal solubility and electronic and morphological properties, thus yielding the best performance. Further device optimization using a ternary strategy allows us to achieve a high efficiency of 16.74% (and a certified efficiency of 16.42%).
引用
收藏
页码:3020 / 3033
页数:14
相关论文
共 49 条
[1]   A road map to stable, soluble, easily crystallized pentacene derivatives [J].
Anthony, JE ;
Eaton, DL ;
Parkin, SR .
ORGANIC LETTERS, 2002, 4 (01) :15-18
[2]   Reduced voltage losses yield 10% efficient fullerene free organic solar cells with >1 V open circuit voltages [J].
Baran, D. ;
Kirchartz, T. ;
Wheeler, S. ;
Dimitrov, S. ;
Abdelsamie, M. ;
Gorman, J. ;
Ashraf, R. S. ;
Holliday, S. ;
Wadsworth, A. ;
Gasparini, N. ;
Kaienburg, P. ;
Yan, H. ;
Amassian, A. ;
Brabec, C. J. ;
Durrant, J. R. ;
McCulloch, I. .
ENERGY & ENVIRONMENTAL SCIENCE, 2016, 9 (12) :3783-3793
[3]  
Baran D, 2017, NAT MATER, V16, P363, DOI [10.1038/NMAT4797, 10.1038/nmat4797]
[4]   Alkyl Chain Regiochemistry of Benzotriazole-Based Donor Polymers Influencing Morphology and Performances of Non-Fullerene Organic Solar Cells [J].
Chen, Shangshang ;
Zhang, Lin ;
Ma, Chao ;
Meng, Dong ;
Zhang, Jianquan ;
Zhang, Guangye ;
Li, Zhengke ;
Chow, Philip C. Y. ;
Ma, Wei ;
Wang, Zhaohui ;
Wong, Kam Sing ;
Ade, Harald ;
Yan, He .
ADVANCED ENERGY MATERIALS, 2018, 8 (11)
[5]   A Wide-Bandgap Donor Polymer for Highly Efficient Non-fullerene Organic Solar Cells with a Small Voltage Loss [J].
Chen, Shangshang ;
Liu, Yuhang ;
Zhang, Lin ;
Chow, Philip C. Y. ;
Wang, Zheng ;
Zhang, Guangye ;
Ma, Wei ;
Yan, He .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (18) :6298-6301
[6]   Counterion-tunable n-type conjugated polyelectrolytes for the interface engineering of efficient polymer solar cells [J].
Chen, Zhiming ;
Hu, Zhicheng ;
Wu, Zhihong ;
Liu, Xiang ;
Jin, Yaocheng ;
Xiao, Manjun ;
Huang, Fei ;
Cao, Yong .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (36) :19447-19455
[7]   Absolute Measurement of Domain Composition and Nanoscale Size Distribution Explains Performance in PTB7:PC71BM Solar Cells [J].
Collins, Brian A. ;
Li, Zhe ;
Tumbleston, John R. ;
Gann, Eliot ;
McNeill, Christopher R. ;
Ade, Harald .
ADVANCED ENERGY MATERIALS, 2013, 3 (01) :65-74
[8]   Over 16% efficiency organic photovoltaic cells enabled by a chlorinated acceptor with increased open-circuit voltages [J].
Cui, Yong ;
Yao, Huifeng ;
Zhang, Jianqi ;
Zhang, Tao ;
Wang, Yuming ;
Hong, Ling ;
Xian, Kaihu ;
Xu, Bowei ;
Zhang, Shaoqing ;
Peng, Jing ;
Wei, Zhixiang ;
Gao, Feng ;
Hou, Jianhui .
NATURE COMMUNICATIONS, 2019, 10 (1)
[9]   25th Anniversary Article: A Decade of Organic/Polymeric Photovoltaic Research [J].
Dou, Letian ;
You, Jingbi ;
Hong, Ziruo ;
Xu, Zheng ;
Li, Gang ;
Street, Robert A. ;
Yang, Yang .
ADVANCED MATERIALS, 2013, 25 (46) :6642-6671
[10]   Interplay Between Side Chain Pattern, Polymer Aggregation, and Charge Carrier Dynamics in PBDTTPD:PCBM Bulk-Heterojunction Solar Cells [J].
Dyer-Smith, Clare ;
Howard, Ian A. ;
Cabanetos, Clement ;
El Labban, Abdulrahman ;
Beaujuge, Pierre M. ;
Laquai, Frederic .
ADVANCED ENERGY MATERIALS, 2015, 5 (09)