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Synthesis and photovoltaic properties of new D-A copolymers based on 5,6-bis(2-ethylhexyl)naphtha[2,1-b:3,4-b]dithiophene-2,9-diyl] donor and fluorine substituted 6,7-bis(9,9-didodecyl-9h-fluoren-2-yl)[1,2,5] thiadiazolo[3,4-g]quinoxaline acceptor units
Keshtov, Mukhamed L.1; Konstantinov, Igor O.1; Kuklin, Sergei A.1; Khokhlov, Alexei R.1; Nekrasova, Natalia V.2; Xie, Zhi-Yuan3; Koukaras, Emmanuel N.4,5; Sharma, Ganesh D.6
2018-06-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume56Issue:12Pages:1297-1307
AbstractTwo low band gap D-A copolymers 5,6-bis(2-ethylhexyl)naphtha[2,1-b:3,4-b]dithiophene-2,9-diyl] donor and without (P1) and with (P2) fluorine substituted 6,7-bis(9,9-didodecyl-9H-fluoren-2-yl)[1,2,5]thiadiazolo[3,4-g]quinoxaline were synthesized and their optical and electrochemical properties were investigated. These copolymers were employed as donor along with PC71BM as acceptor for the fabrication of solution processed bulk heterojunction polymer solar cells. After the optimization of the active layer, that is, different donor-to-acceptor weight ratios and concentration of DIO solvent additive, the resultant polymer solar cells showed overall PCE of 5.44% and 8.14% for P1 and P2, respectively, with low voltage loss of 0.40 eV. The higher value of power conversion efficiency of P2 based polymer solar cells as compared to P1 counterparts, my be related to the deeper highest occupied molecular orbital energy level of P2, higher hole mobility, balanced charge transport, suppressed bimolecular recombination and small - stacking distance and higher crystallinity of P2:PC71BM active layer. Although the dipole moment of P2 is slightly lower than P1, the enhanced values of power conversion efficiency of P2 may be related to improve stacking. (c) 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 1297-1307
KeywordD-a Copolymers Low Band Gap Low Energy Loss Polymer Solar Cells Power Conversion Efficiency
DOI10.1002/pola.29011
Indexed BySCI
Language英语
WOS IDWOS:000431658400011
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/43174
Collection中国科学院化学研究所
Corresponding AuthorKeshtov, Mukhamed L.; Sharma, Ganesh D.
Affiliation1.Russian Acad Sci, Inst Organoelement Cpds, Vavilova St 28, Moscow 119991, Russia
2.Russian Acad Sci, Inst Phys Chem & Electrochem, LeninskyProspect 31, Moscow 119071, Russia
3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China
4.Univ Patras, Dept Chem Engn, Nanotechnol & Adv Mat Lab, Patras 26500, Western Greece, Greece
5.Univ Patras, Dept Phys, Mol Engn Lab, Patras 26500, Western Greece, Greece
6.LNM Inst Informat Technol, Dept Phys, Jaipur, Rajasthan, India
Recommended Citation
GB/T 7714
Keshtov, Mukhamed L.,Konstantinov, Igor O.,Kuklin, Sergei A.,et al. Synthesis and photovoltaic properties of new D-A copolymers based on 5,6-bis(2-ethylhexyl)naphtha[2,1-b:3,4-b]dithiophene-2,9-diyl] donor and fluorine substituted 6,7-bis(9,9-didodecyl-9h-fluoren-2-yl)[1,2,5] thiadiazolo[3,4-g]quinoxaline acceptor units[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2018,56(12):1297-1307.
APA Keshtov, Mukhamed L..,Konstantinov, Igor O..,Kuklin, Sergei A..,Khokhlov, Alexei R..,Nekrasova, Natalia V..,...&Sharma, Ganesh D..(2018).Synthesis and photovoltaic properties of new D-A copolymers based on 5,6-bis(2-ethylhexyl)naphtha[2,1-b:3,4-b]dithiophene-2,9-diyl] donor and fluorine substituted 6,7-bis(9,9-didodecyl-9h-fluoren-2-yl)[1,2,5] thiadiazolo[3,4-g]quinoxaline acceptor units.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,56(12),1297-1307.
MLA Keshtov, Mukhamed L.,et al."Synthesis and photovoltaic properties of new D-A copolymers based on 5,6-bis(2-ethylhexyl)naphtha[2,1-b:3,4-b]dithiophene-2,9-diyl] donor and fluorine substituted 6,7-bis(9,9-didodecyl-9h-fluoren-2-yl)[1,2,5] thiadiazolo[3,4-g]quinoxaline acceptor units".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 56.12(2018):1297-1307.
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