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Crystalline Medium-Bandgap Light-Harvesting Donor Material Based on beta-Naphthalene Asymmetric-Modified Benzodithiophene Moiety toward Efficient Polymer Solar Cells
Li, Yonghai1; Liu, Deyu1,4; Wang, Junyi1,4; Zhang, Zhi-Guo3; Li, Yongfang3; Liu, Yanfang1; Zhu, Tingting2; Bao, Xichang1; Sun, Mingliang2; Yang, Renqiang1
2017-10-10
发表期刊CHEMISTRY OF MATERIALS
卷号29期号:19页码:8249-8257
摘要In this paper, we reported a crystalline p-type medium-bandgap conjugated D-A polymer asy-PBDBTN based on a symmetry-breaking-modified BDT moiety to combine the advantages of both one-dimension (1D) and two-dimension (2D) symmetric BDTs. Polymer asy-PBDBTN is a highly efficient light-harvesting donor material. Single BHJ PSCs exhibit PCE of 8.88% with PC71BM as acceptor. Also, PCE values of 10.50% are achieved with the use of ITIC as an acceptor to couple asy-PBDBTN with V-oc of 0.942 V, J(SC) of 16.81 mA cm(-2), and FF of 0.663. It is worth noting that lower energy loss is obtained in fullerene-free-based PSCs, which is essential to overcome the trade-off between Voc and J(SC) and boost these two parameters simultaneously for high photovoltaic performance. The combination process of additive and thermal annealing is critical to enhance and retain the pi-pi stacking behavior of donor and fullerene-free acceptor; as a result, the trap-assisted recombination was greatly suppressed. This work demonstrates a great prospect for the construction of the symmetry-breaking BDT-based D-A conjugated polymers toward high-performance PSCs, especially with fullerene-free acceptor material.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acs.chemmater.7b02495
关键词[WOS]POWER CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGE ; ELECTRON-ACCEPTORS ; PHOTOVOLTAIC POLYMERS ; ORGANIC ELECTRONICS ; SINGLE-JUNCTION ; EXCITED-STATES ; ENERGY-LOSSES ; PERFORMANCE ; FULLERENE
收录类别SCI
语种英语
WOS研究方向Chemistry ; Materials Science
项目资助者National Natural Science Foundation of China(21502205 ; China Postdoctoral Science Foundation(2016T90656) ; Youth Innovation Promotion Association CAS(2016194) ; 51573205)
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号WOS:000412965800026
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9561
专题先进有机功能材料团队
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Li, Yonghai,Liu, Deyu,Wang, Junyi,et al. Crystalline Medium-Bandgap Light-Harvesting Donor Material Based on beta-Naphthalene Asymmetric-Modified Benzodithiophene Moiety toward Efficient Polymer Solar Cells[J]. CHEMISTRY OF MATERIALS,2017,29(19):8249-8257.
APA Li, Yonghai.,Liu, Deyu.,Wang, Junyi.,Zhang, Zhi-Guo.,Li, Yongfang.,...&Yang, Renqiang.(2017).Crystalline Medium-Bandgap Light-Harvesting Donor Material Based on beta-Naphthalene Asymmetric-Modified Benzodithiophene Moiety toward Efficient Polymer Solar Cells.CHEMISTRY OF MATERIALS,29(19),8249-8257.
MLA Li, Yonghai,et al."Crystalline Medium-Bandgap Light-Harvesting Donor Material Based on beta-Naphthalene Asymmetric-Modified Benzodithiophene Moiety toward Efficient Polymer Solar Cells".CHEMISTRY OF MATERIALS 29.19(2017):8249-8257.
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