التفاصيل البيبلوغرافية
| العنوان: |
Medium Bandgap Nonfullerene Acceptor for Efficient Ternary Polymer Solar Cells with High Open-Circuit Voltage |
| المؤلفون: |
Mukhamed L. Keshtov (3186294), Alexei R. Khokhlov (1759603), Dimitriy Y. Shikin (14317134), Vladimir Alekseev (14317137), Giriraj Chayal (12739168), Hemraj Dahiya (9756207), Manish Kumar Singh (4376503), Fang Chung Chen (14317140), Ganesh D. Sharma (1533934) |
| سنة النشر: |
2023 |
| مصطلحات موضوعية: |
Genetics, Molecular Biology, Physiology, Biotechnology, Developmental Biology, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, power conversion efficiency, polymer solar cells, lumo energy levels, compact stacking distance, binary bhj devices, >- cyclopenta [<, high electron mobility, molecule acceptor consisting, cl nonfullerene acceptors, cl active layer, achieving high open, 2 -( 6, showed higher crystallinity, 34 %, respectively, p :< b, tc , high open, significantly higher, 44 %, h <, guest acceptor, c < |
| الوصف: |
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-4 H -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. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Medium_Bandgap_Nonfullerene_Acceptor_for_Efficient_Ternary_Polymer_Solar_Cells_with_High_Open-Circuit_Voltage/21803910 |
| DOI: |
10.1021/acsomega.2c05141.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsomega.2c05141.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.EF5F0EFC |
| قاعدة البيانات: |
BASE |