中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Synergistic effect of fluorination on both donor and acceptor materials for high performance non-fullerene polymer solar cells with 13.5% efficiency

文献类型:期刊论文

作者Fan, Qunping1; Su, Wenyan1; Wang, Yan1; Guo, Bing1; Jiang, Yufeng3; Guo, Xia1; Liu, Feng2; Russell, Thomas P.3; Zhang, Maojie1; Li, Yongfang4
刊名SCIENCE CHINA-CHEMISTRY
出版日期2018-05-01
卷号61期号:5页码:531-537
关键词Polymer Solar Cells Fluorine Substitution Non-fullerene Wide Bandgap Conjugated Polymer Power Conversion Efficiency
ISSN号1674-7291
DOI10.1007/s11426-017-9199-1
英文摘要A high performance polymer solar cells (PSCs) based on polymer donor PM6 containing fluorinated thienyl benzodithiophene unit and n-type organic semiconductor acceptor IT-4F containing fluorinated end-groups were developed. In addition to complementary absorption spectra (300-830 nm) with IT-4F, the PM6 also has a deep HOMO (the highest occupied molecular) level (-5.50 eV), which will lower the open-circuit voltage (V-oc) sacrifice and reduce the E-loss of the IT-4F-based PSCs. Moreover, the strong crystallinity of PM6 is beneficial to form favorable blend morphology and hence to suppress recombination. As a result, in comparison with the PSCs based on a non-fluorinated D/A pair of PBDB-T:ITIC with a medium PCE of 11.2%, the PM6:IT-4Fbased PSCs yielded an impressive PCE of 13.5% due to the synergistic effect of fluorination on both donor and acceptor, which is among the highest values recorded in the literatures for PSCs to date. Furthermore, a PCE of 12.2% was remained with the active layer thickness of up to 285 nm and a high PCE of 11.4% was also obtained with a large device area of 1 cm(2). In addition, the devices also showed good storage, thermal and illumination stabilities with respect to the efficiency. These results indicate that fluorination is an effective strategy to improve the photovoltaic performance of materials, as well as the both fluorinated donor and acceptor pair-PM6:IT-4F is an ideal candidate for the large scale roll-to-roll production of efficient PSCs in the future.
语种英语
WOS记录号WOS:000431179300007
出版者SCIENCE PRESS
源URL[http://ir.iccas.ac.cn/handle/121111/43181]  
专题中国科学院化学研究所
通讯作者Zhang, Maojie
作者单位1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, State & Local Joint Engn Lab Novel Funct Polymer, Lab Adv Optoelect Mat, Suzhou 215123, Peoples R China
2.Shanghai Jiao Tong Univ, Dept Phys & Astron, Collaborat Innovat Ctr IFSA, Shanghai 200240, Peoples R China
3.Lawrence Berkeley Natl Lab, Mat Sci Div, Berkeley, CA 94720 USA
4.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
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Fan, Qunping,Su, Wenyan,Wang, Yan,et al. Synergistic effect of fluorination on both donor and acceptor materials for high performance non-fullerene polymer solar cells with 13.5% efficiency[J]. SCIENCE CHINA-CHEMISTRY,2018,61(5):531-537.
APA Fan, Qunping.,Su, Wenyan.,Wang, Yan.,Guo, Bing.,Jiang, Yufeng.,...&Li, Yongfang.(2018).Synergistic effect of fluorination on both donor and acceptor materials for high performance non-fullerene polymer solar cells with 13.5% efficiency.SCIENCE CHINA-CHEMISTRY,61(5),531-537.
MLA Fan, Qunping,et al."Synergistic effect of fluorination on both donor and acceptor materials for high performance non-fullerene polymer solar cells with 13.5% efficiency".SCIENCE CHINA-CHEMISTRY 61.5(2018):531-537.

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来源:化学研究所

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