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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 †

Author

Listed:
  • Alexander N. Solodukhin

    (Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia
    Alexander N. Solodukhin and Yuriy N. Luponosov contributed equally to this work.)

  • Yuriy N. Luponosov

    (Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia
    Alexander N. Solodukhin and Yuriy N. Luponosov contributed equally to this work.)

  • Artur L. Mannanov

    (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)

  • Petr S. Savchenko

    (Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia)

  • Artem V. Bakirov

    (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)

  • Maxim A. Shcherbina

    (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)

  • Sergei N. Chvalun

    (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)

  • Dmitry Yu. Paraschuk

    (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)

  • Sergey A. Ponomarenko

    (Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya St. 70, 117393 Moscow, Russia)

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.

Suggested Citation

  • Alexander N. Solodukhin & Yuriy N. Luponosov & Artur L. Mannanov & Petr S. Savchenko & Artem V. Bakirov & Maxim A. Shcherbina & Sergei N. Chvalun & Dmitry Yu. Paraschuk & Sergey A. Ponomarenko, 2021. "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 †," Energies, MDPI, vol. 14(12), pages 1-14, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:12:p:3596-:d:576353
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    References listed on IDEAS

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    2. Yu Jiang & Youjun Bai & Shenghao Wang, 2023. "Organic Solar Cells: From Fundamental to Application," Energies, MDPI, vol. 16(5), pages 1-3, February.
    3. Qiuju Liang & Haodong Lu & Yinxia Chang & Zemin He & Yuzhen Zhao & Jiangang Liu, 2022. "Morphology Control in Organic Solar Cells," Energies, MDPI, vol. 15(15), pages 1-3, July.

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