LAPSE:2023.33034
Published Article
LAPSE:2023.33034
Branched Electron-Donor Core Effect in D-π-A Star-Shaped Small Molecules on Their Properties and Performance in Single-Component and Bulk-Heterojunction Organic Solar Cells †
April 20, 2023
Abstract
Star-shaped donor-acceptor molecules are full of promise for organic photovoltaics and electronics. However, the effect of the branching core on physicochemical properties, charge transport and photovoltaic performance of such donor-acceptor materials in single-component (SC) and bulk heterojunction (BHJ) organic solar cells has not been thoroughly addressed. This work shows the comprehensive investigation of six star-shaped donor-acceptor molecules with terminal hexyldicyanovinyl blocks linked through 2,2′-bithiophene π-conjugated bridge to different electron-donating cores such as the pristine and fused triphenylamine, tris(2-methoxyphenyl)amine, carbazole- and benzotriindole-based units. Variation of the branching core strongly impacts on such important properties as the solubility, highest occupied molecular orbital energy, optical absorption, phase behavior, molecular packing and also on the charge-carrier mobility. The performance of SC or BHJ organic solar cells are comprehensively studied and compared. The results obtained provide insight on how to predict and fine-tune photovoltaic performance as well as properties of donor-acceptor star-shaped molecules for organic solar cells.
Keywords
benzotriindole, bulk-heterojunction organic solar cells, carbazole, donor-acceptor small molecules, single-component organic solar cells, star-shaped molecules, triphenylamine
Suggested Citation
Solodukhin AN, Luponosov YN, Mannanov AL, Savchenko PS, Bakirov AV, Shcherbina MA, Chvalun SN, Paraschuk DY, Ponomarenko SA. Branched Electron-Donor Core Effect in D-π-A Star-Shaped Small Molecules on Their Properties and Performance in Single-Component and Bulk-Heterojunction Organic Solar Cells †. (2023). LAPSE:2023.33034
Author Affiliations
Solodukhin AN: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia [ORCID]
Luponosov YN: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia [ORCID]
Mannanov AL: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia; Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1/62, 119991 Moscow, Russia [ORCID]
Savchenko PS: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia
Bakirov AV: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia; National Research Centre Kurchatov Institute, 1 ak. Kurchatov Square, 123098 Moscow, Russia [ORCID]
Shcherbina MA: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia; Moscow Institute of Physics and Technology, 9 Institutsky Line, Dolgoprudny, 141700 Moscow, Russia [ORCID]
Chvalun SN: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia; National Research Centre Kurchatov Institute, 1 ak. Kurchatov Square, 123098 Moscow, Russia
Paraschuk DY: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia; Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1/62, 119991 Moscow, Russia [ORCID]
Ponomarenko SA: Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia [ORCID]
Journal Name
Energies
Volume
14
Issue
12
First Page
3596
Year
2021
Publication Date
2021-06-17
ISSN
1996-1073
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PII: en14123596, Publication Type: Journal Article
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LAPSE:2023.33034
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https://doi.org/10.3390/en14123596
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