Electron Acceptors Based on α-Substituted Perylene Diimide (PDI) for Organic Solar Cells
The ortho-position functionalized perylene diimide derivatives (αPPID, αPBDT) were synthesized and used as the electron acceptors in nonfullerene organic photovoltaics. Due to the good planarity of ortho-position functionalized PDI, the αPPID and αPBDT show strong tendency to form aggregate because of their enhanced intermolecular pie-pie interaction. Moreover, they maintain the pure domains and the same packing order as in the pure film if they are blended with PBT7-TH and the SCLC measurement also shows the high electron mobility. The inverted OPVs employing αPDI-based compounds as acceptor and PBT7-TH as the donor give the highest PCE of 4.92 % for αPBDT based device and 3.61 % for αPPID based device, which is 39 % and 4 % higher than that for their counterpart βPBDT and βPPID. The charge separation study shows the more efficient exciton dissociation at interfaces between PDI based compounds and PBT7-TH. In conclusion, the results suggest that compared to beta-substituted ones, alpha-substituted PDI derivatives are more promising electron acceptors for OPV.
- Authors:
-
[1]
; [1]
; [1]
; [1]
; [2]
; [1]
; [1]
- Univ. of Chicago, IL (United States). James Franck Inst., Dept. of Chemistry
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Univ. of Chicago, IL (United States). Inst. for Molecular Engineering
- Publication Date:
- Grant/Contract Number:
- AC02-06CH11357; SC0001059; DMR-1263006; KC020301
- Type:
- Accepted Manuscript
- Journal Name:
- Chemistry of Materials
- Additional Journal Information:
- Journal Volume: 28; Journal Issue: 4; Journal ID: ISSN 0897-4756
- Publisher:
- American Chemical Society (ACS)
- Research Org:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); National Institute of Standards and Technology (NIST)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 14 SOLAR ENERGY
- OSTI Identifier:
- 1245464
Zhao, Donglin, Wu, Qinghe, Cai, Zhengxu, Zheng, Tianyue, Chen, Wei, Lu, Jessica, and Yu, Luping. Electron Acceptors Based on α-Substituted Perylene Diimide (PDI) for Organic Solar Cells. United States: N. p.,
Web. doi:10.1021/acs.chemmater.5b04570.
Zhao, Donglin, Wu, Qinghe, Cai, Zhengxu, Zheng, Tianyue, Chen, Wei, Lu, Jessica, & Yu, Luping. Electron Acceptors Based on α-Substituted Perylene Diimide (PDI) for Organic Solar Cells. United States. doi:10.1021/acs.chemmater.5b04570.
Zhao, Donglin, Wu, Qinghe, Cai, Zhengxu, Zheng, Tianyue, Chen, Wei, Lu, Jessica, and Yu, Luping. 2016.
"Electron Acceptors Based on α-Substituted Perylene Diimide (PDI) for Organic Solar Cells". United States.
doi:10.1021/acs.chemmater.5b04570. https://www.osti.gov/servlets/purl/1245464.
@article{osti_1245464,
title = {Electron Acceptors Based on α-Substituted Perylene Diimide (PDI) for Organic Solar Cells},
author = {Zhao, Donglin and Wu, Qinghe and Cai, Zhengxu and Zheng, Tianyue and Chen, Wei and Lu, Jessica and Yu, Luping},
abstractNote = {The ortho-position functionalized perylene diimide derivatives (αPPID, αPBDT) were synthesized and used as the electron acceptors in nonfullerene organic photovoltaics. Due to the good planarity of ortho-position functionalized PDI, the αPPID and αPBDT show strong tendency to form aggregate because of their enhanced intermolecular pie-pie interaction. Moreover, they maintain the pure domains and the same packing order as in the pure film if they are blended with PBT7-TH and the SCLC measurement also shows the high electron mobility. The inverted OPVs employing αPDI-based compounds as acceptor and PBT7-TH as the donor give the highest PCE of 4.92 % for αPBDT based device and 3.61 % for αPPID based device, which is 39 % and 4 % higher than that for their counterpart βPBDT and βPPID. The charge separation study shows the more efficient exciton dissociation at interfaces between PDI based compounds and PBT7-TH. In conclusion, the results suggest that compared to beta-substituted ones, alpha-substituted PDI derivatives are more promising electron acceptors for OPV.},
doi = {10.1021/acs.chemmater.5b04570},
journal = {Chemistry of Materials},
number = 4,
volume = 28,
place = {United States},
year = {2016},
month = {2}
}
- Free Publicly Accessible Full Text
-
Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.1021/acs.chemmater.5b04570