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Medium Bandgap Nonfullerene Acceptor for Efficient Ternary Polymer Solar Cells with High Open-Circuit Voltage
[Image: see text] We have designed a new medium bandgap non-fullerene small-molecule acceptor consisting of an IDT donor core flanked with 2-(6-oxo-5,6-dihydro-4H-cyclopenta[c]-thiophene-4-ylidene) malononitrile (TC) acceptor terminal groups (IDT-TC) and compared its optical and electrochemical prop...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9850470/ https://www.ncbi.nlm.nih.gov/pubmed/36687083 http://dx.doi.org/10.1021/acsomega.2c05141 |
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author | Keshtov, Mukhamed L. Khokhlov, Alexei R. Shikin, Dimitriy Y. Alekseev, Vladimir Chayal, Giriraj Dahiya, Hemraj Singh, Manish Kumar Chen, Fang Chung Sharma, Ganesh D. |
author_facet | Keshtov, Mukhamed L. Khokhlov, Alexei R. Shikin, Dimitriy Y. Alekseev, Vladimir Chayal, Giriraj Dahiya, Hemraj Singh, Manish Kumar Chen, Fang Chung Sharma, Ganesh D. |
author_sort | Keshtov, Mukhamed L. |
collection | PubMed |
description | [Image: see text] We have designed a new medium bandgap non-fullerene small-molecule acceptor consisting of an IDT donor core flanked with 2-(6-oxo-5,6-dihydro-4H-cyclopenta[c]-thiophene-4-ylidene) malononitrile (TC) acceptor terminal groups (IDT-TC) and compared its optical and electrochemical properties with the IDT-IC acceptor. IDT-TC showed an absorption profile from 300 to 760 nm, and it has an optical bandgap of 1.65 eV and HOMO and LUMO energy levels of −5.55 and −3.83 eV, respectively. In contrast to IDT-IC, IDT-TC has an upshifted LUMO energy level, which is advantageous for achieving high open-circuit voltage. Moreover, IDT-TC showed higher crystallinity and high electron mobility than IDT-IC. Using a wide bandgap D–A copolymer P as the donor, we compared the photovoltaic performance of IDT-TC, IDT-IC, and IDT-IC-Cl nonfullerene acceptors (NFAs). Polymer solar cells (PSCs) using P: IDT-TC, P: IDT-IC, and P:IDT-IC-Cl active layers achieved a power conversion efficiency (PCE) of 14.26, 11.56, and 13.34%, respectively. As the absorption profiles of IDT-IC-Cl and IDT-TC are complementary to each other, we have incorporated IDT-TC as the guest acceptor in the P: IDT-IC-Cl active layer to fabricate the ternary (P:IDT-TC: IDT-IC-Cl) PSC, demonstrating a PCE of 16.44%, which is significantly higher than that of the binary BHJ devices. The improvement in PCE for ternary PSCs is attributed to the efficient exploitation of excitons via energy transfer from IDT-TC to IDT-IC-Cl, suitable nanoscale phase separation, compact stacking distance, and more evenly distributed charge transport. |
format | Online Article Text |
id | pubmed-9850470 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-98504702023-01-20 Medium Bandgap Nonfullerene Acceptor for Efficient Ternary Polymer Solar Cells with High Open-Circuit Voltage Keshtov, Mukhamed L. Khokhlov, Alexei R. Shikin, Dimitriy Y. Alekseev, Vladimir Chayal, Giriraj Dahiya, Hemraj Singh, Manish Kumar Chen, Fang Chung Sharma, Ganesh D. ACS Omega [Image: see text] We have designed a new medium bandgap non-fullerene small-molecule acceptor consisting of an IDT donor core flanked with 2-(6-oxo-5,6-dihydro-4H-cyclopenta[c]-thiophene-4-ylidene) malononitrile (TC) acceptor terminal groups (IDT-TC) and compared its optical and electrochemical properties with the IDT-IC acceptor. IDT-TC showed an absorption profile from 300 to 760 nm, and it has an optical bandgap of 1.65 eV and HOMO and LUMO energy levels of −5.55 and −3.83 eV, respectively. In contrast to IDT-IC, IDT-TC has an upshifted LUMO energy level, which is advantageous for achieving high open-circuit voltage. Moreover, IDT-TC showed higher crystallinity and high electron mobility than IDT-IC. Using a wide bandgap D–A copolymer P as the donor, we compared the photovoltaic performance of IDT-TC, IDT-IC, and IDT-IC-Cl nonfullerene acceptors (NFAs). Polymer solar cells (PSCs) using P: IDT-TC, P: IDT-IC, and P:IDT-IC-Cl active layers achieved a power conversion efficiency (PCE) of 14.26, 11.56, and 13.34%, respectively. As the absorption profiles of IDT-IC-Cl and IDT-TC are complementary to each other, we have incorporated IDT-TC as the guest acceptor in the P: IDT-IC-Cl active layer to fabricate the ternary (P:IDT-TC: IDT-IC-Cl) PSC, demonstrating a PCE of 16.44%, which is significantly higher than that of the binary BHJ devices. The improvement in PCE for ternary PSCs is attributed to the efficient exploitation of excitons via energy transfer from IDT-TC to IDT-IC-Cl, suitable nanoscale phase separation, compact stacking distance, and more evenly distributed charge transport. American Chemical Society 2023-01-02 /pmc/articles/PMC9850470/ /pubmed/36687083 http://dx.doi.org/10.1021/acsomega.2c05141 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Keshtov, Mukhamed L. Khokhlov, Alexei R. Shikin, Dimitriy Y. Alekseev, Vladimir Chayal, Giriraj Dahiya, Hemraj Singh, Manish Kumar Chen, Fang Chung Sharma, Ganesh D. Medium Bandgap Nonfullerene Acceptor for Efficient Ternary Polymer Solar Cells with High Open-Circuit Voltage |
title | Medium Bandgap
Nonfullerene Acceptor for Efficient
Ternary Polymer Solar Cells with High Open-Circuit Voltage |
title_full | Medium Bandgap
Nonfullerene Acceptor for Efficient
Ternary Polymer Solar Cells with High Open-Circuit Voltage |
title_fullStr | Medium Bandgap
Nonfullerene Acceptor for Efficient
Ternary Polymer Solar Cells with High Open-Circuit Voltage |
title_full_unstemmed | Medium Bandgap
Nonfullerene Acceptor for Efficient
Ternary Polymer Solar Cells with High Open-Circuit Voltage |
title_short | Medium Bandgap
Nonfullerene Acceptor for Efficient
Ternary Polymer Solar Cells with High Open-Circuit Voltage |
title_sort | medium bandgap
nonfullerene acceptor for efficient
ternary polymer solar cells with high open-circuit voltage |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9850470/ https://www.ncbi.nlm.nih.gov/pubmed/36687083 http://dx.doi.org/10.1021/acsomega.2c05141 |
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