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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
Source PublicationCHEMISTRY OF MATERIALS
Volume29Issue:19Pages:8249-8257
AbstractIn 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/acs.chemmater.7b02495
WOS KeywordPOWER CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGE ; ELECTRON-ACCEPTORS ; PHOTOVOLTAIC POLYMERS ; ORGANIC ELECTRONICS ; SINGLE-JUNCTION ; EXCITED-STATES ; ENERGY-LOSSES ; PERFORMANCE ; FULLERENE
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Materials Science
Funding OrganizationNational Natural Science Foundation of China(21502205 ; China Postdoctoral Science Foundation(2016T90656) ; Youth Innovation Promotion Association CAS(2016194) ; 51573205)
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000412965800026
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/9561
Collection先进有机功能材料团队
Affiliation1.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
Recommended Citation
GB/T 7714
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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