A Nonfullerene Acceptor with Alkylthio- and Dimethoxy-Thiophene-Groups Yielding High-Performance Ternary Organic Solar Cells

被引:29
作者
Zeng, Anping [1 ,2 ,3 ]
Pan, Mingao [2 ,3 ]
Lin, Baojun [4 ]
Lau, Tsz-Ki [5 ]
Qin, Minchao [5 ]
Li, Kun [2 ]
Ma, Wei [4 ]
Lu, Xinhui [5 ]
Zhan, Chuanlang [1 ,2 ]
Yan, He [3 ]
机构
[1] Inner Mongolia Normal Univ, Coll Chem & Environm Sci, Hohhot 010022, Peoples R China
[2] Chinese Acad Sci, Inst Chem, CAS Key Lab Photochem, Beijing 100190, Peoples R China
[3] Hong Kong Univ Sci & Technol, Chinese Natl Engn Res Ctr Tissue Restorat & Recon, Hong Kong Branch, Dept Chem,Kowloon, Clear Water Bay, Hong Kong, Peoples R China
[4] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
[5] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China
基金
中国国家自然科学基金;
关键词
fullerene-free; nonfullerene acceptors; organic solar cells; polymer solar cells; ternary solar cells; POLYMER; EFFICIENCY; FULLERENE; MORPHOLOGY; DESIGN; LAYER;
D O I
10.1002/solr.201900353
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Herein, an A-D-A-type nonfullerene acceptor (named IDTS-4F) with an alkyl thiophenyl side chain and dimethoxy thiophene bridging unit is reported. The use of an alkyl thiophenyl group is important, as the insertion of sulfur atoms can slightly downshift the highest occupied molecular orbital (HOMO) level of the molecule and allows IDTS-4F to match with state-of-the-art donor polymer PM6 (or PM7). Compared with conventional nonfullerene acceptors, IT-4F, the IDTS-4F molecule, has a smaller optical bandgap and higher lowest unoccupied molecular orbital (LUMO) level, which are beneficial to increase the V-oc and J(sc) of the devices. Nonfullerene organic solar cell devices are fabricated using IDTS-4F. Although the binary device based on IDTS-4F exhibits a lower fill factor (FF, 70%), the ternary device by incorporating 0.2 of IDTS-4F and 0.8 of IT-4F (with PM6 as the donor polymer) can simultaneously achieve a higher V-oc and J(sc), while maintaining the high FF (77%) of IT-4F based system. Morphology characterizations indicate the formation of homogeneous film morphology, the large increase in phase purity and crystallinity, and the reduction in domain size upon addition of crystalline IDTS-4F, while the electron/hole mobilities and recombination losses of the IT-4F system are both maintained.
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页数:9
相关论文
共 53 条
[1]   Impact of Nonfullerene Acceptor Core Structure on the Photophysics and Efficiency of Polymer Solar Cells [J].
Alamoudi, Maha A. ;
Khan, Jafar I. ;
Firdaus, Yuliar ;
Wang, Kai ;
Andrienko, Denis ;
Beaujuge, Pierre M. ;
Laquai, Frederic .
ACS ENERGY LETTERS, 2018, 3 (04) :802-811
[2]   Organic Ternary Solar Cells: A Review [J].
Ameri, Tayebeh ;
Khoram, Parisa ;
Min, Jie ;
Brabec, Christoph J. .
ADVANCED MATERIALS, 2013, 25 (31) :4245-4266
[3]  
Baran D, 2017, NAT MATER, V16, P363, DOI [10.1038/NMAT4797, 10.1038/nmat4797]
[4]   Angular-Shaped 4,9-Dialkylnaphthodithiophene-Based Octacyclic Ladder-Type Non-Fullerene Acceptors for High Efficiency Ternary-Blend Organic Photovoltaics [J].
Cao, Fong-Yi ;
Huang, Wen-Chia ;
Chang, Shao-Ling ;
Cheng, Yen-Ju .
CHEMISTRY OF MATERIALS, 2018, 30 (15) :4968-4977
[5]   14%-efficiency fullerene-free ternary solar cell enabled by designing a short side-chain substituted small-molecule acceptor [J].
Chang, Yuan ;
Zhang, Xin ;
Tang, Yabing ;
Gupta, Monika ;
Su, Dan ;
Liang, Jiaen ;
Yan, Dong ;
Li, Kun ;
Guo, Xuefeng ;
Ma, Wei ;
Yan, He ;
Zhan, Chuanlang .
NANO ENERGY, 2019, 64
[6]   Achieving High-Performance Ternary Organic Solar Cells through Tuning Acceptor Alloy [J].
Chen, Yusheng ;
Ye, Pan ;
Zhu, Zhen-Gang ;
Wang, Xinlong ;
Yang, Lei ;
Xu, Xiaozhou ;
Wu, Xiaoxi ;
Dong, Tao ;
Zhang, Hao ;
Hou, Jianhui ;
Liu, Feng ;
Huang, Hui .
ADVANCED MATERIALS, 2017, 29 (06)
[7]   Origin of Effects of Additive Solvent on Film-Morphology in Solution-Processed Nonfullerene Solar Cells [J].
Chen, Yuxia ;
Zhang, Xin ;
Zhan, Chuanlang ;
Yao, Jiannian .
ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (12) :6462-6471
[8]   Modulation of End Groups for Low-Bandgap Nonfullerene Acceptors Enabling High-Performance Organic Solar Cells [J].
Chen, Yuzhong ;
Liu, Tao ;
Hu, Huawei ;
Ma, Tingxuan ;
Lai, Joshua Yuk Lin ;
Zhang, Jianquan ;
Ade, Harald ;
Yan, He .
ADVANCED ENERGY MATERIALS, 2018, 8 (27)
[9]   Unique Energy Alignments of a Ternary Material System toward High-Performance Organic Photovoltaics [J].
Cheng, Pei ;
Wang, Jiayu ;
Zhang, Qianqian ;
Huang, Wenchao ;
Zhu, Jingshuai ;
Wang, Rui ;
Chang, Sheng-Yung ;
Sun, Pengyu ;
Meng, Lei ;
Zhao, Hongxiang ;
Cheng, Hao-Wen ;
Huang, Tianyi ;
Liu, Yuqiang ;
Wang, Chaochen ;
Zhu, Chenhui ;
You, Wei ;
Zhan, Xiaowei ;
Yang, Yang .
ADVANCED MATERIALS, 2018, 30 (28)
[10]   Achieving Over 15% Efficiency in Organic Photovoltaic Cells via Copolymer Design [J].
Cui, Yong ;
Yao, Huifeng ;
Hong, Ling ;
Zhang, Tao ;
Xu, Ye ;
Xian, Kaihu ;
Gao, Bowei ;
Qin, Jinzhao ;
Zhang, Jianqi ;
Wei, Zhixiang ;
Hou, Jianhui .
ADVANCED MATERIALS, 2019, 31 (14)