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Performance Enhancement of Interdigitated Heterojunction Solar Cells with Discotic Molecule

Author

Listed:
  • Zhi Zhang

    (School of Electronics and Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China)

  • Yao Wang

    (School of Electronics and Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China
    South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China)

  • Qun Chen

    (School of Electronics and Information, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China
    South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China)

  • Zhipan Zeng

    (Beijing Dalu Instrument Technology Limited Company, Beijing 101199, China)

Abstract

Ordered interdigitated heterojunction as a promising nanostructure has attracted considerable attention due to its potential application in solar cells. However, a suitable construction to achieve effective free carrier transport in these nanostructures remains a challenge. In this study, interdigitated nanostructure was fabricated by combining vertically orientated TiO 2 nanotube array with discotic liquid crystal Copper (II) 2,9,16,23-tetra-tert-butyl-29H,31H-phthalocyanine (tbCuPc). These discotic molecules were assembled as homeotropic alignment in the interdigitated nanostructure, which enhanced the carrier mobility of active layer considerably. The performance of photovoltaic cells with this interdigitated heterojunction was improved. Molecule orientation leading to charge carrier mobility enhancement was found to play a key role in improving the power conversion efficiency of the devices substantially.

Suggested Citation

  • Zhi Zhang & Yao Wang & Qun Chen & Zhipan Zeng, 2022. "Performance Enhancement of Interdigitated Heterojunction Solar Cells with Discotic Molecule," Energies, MDPI, vol. 15(15), pages 1-12, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:15:p:5736-:d:882488
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    References listed on IDEAS

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    1. Katerina Anagnostou & Minas M. Stylianakis & Konstantinos Petridis & Emmanuel Kymakis, 2019. "Building an Organic Solar Cell: Fundamental Procedures for Device Fabrication," Energies, MDPI, vol. 12(11), pages 1-23, June.
    2. Nora Schopp & Viktor V. Brus, 2022. "A Review on the Materials Science and Device Physics of Semitransparent Organic Photovoltaics," Energies, MDPI, vol. 15(13), pages 1-15, June.
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