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Easily Prepared Transparent Electrodes for Low-Cost Semitransparent Inverted Polymer Solar Cells

Author

Listed:
  • Jiaxin Guo

    (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China)

  • Ziming Bu

    (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China)

  • Shuo Han

    (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China)

  • Yanyu Deng

    (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China)

  • Chunyu Liu

    (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China)

  • Wenbin Guo

    (State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China)

Abstract

The continuous thin film of silver (Ag) film is important for semitransparent electrodes in polymer solar cells, while the Ag atoms form as non-continuous below a critical thickness. Here, semitransparent inverted polymer solar cells were fabricated using thermally evaporated Ag/germanium (Ge)/Ag as highly transparent electrodes. An ultra-thin Ge film was introduced to modify the growth mode of Ag. The dependence of the device performance and the thickness of the outer Ag film was investigated. Ag/Ge/Ag electrodes exhibited excellent optical and electrical properties, which were proved by the transmittance and reflectance spectra. A champion efficiency of 5.1% was achieved with an open-circuit voltage level of 0.703 V, a short current density of 11.63 mA/cm 2 , and a fill factor of 63%. The average visible transmittance (300–800 nm) of devices with Ag/Ge/Ag was calculated as 25%.

Suggested Citation

  • Jiaxin Guo & Ziming Bu & Shuo Han & Yanyu Deng & Chunyu Liu & Wenbin Guo, 2021. "Easily Prepared Transparent Electrodes for Low-Cost Semitransparent Inverted Polymer Solar Cells," Energies, MDPI, vol. 14(18), pages 1-10, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:18:p:5837-:d:636058
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    References listed on IDEAS

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    1. Yu Zhong & M. Tuan Trinh & Rongsheng Chen & Geoffrey E. Purdum & Petr P. Khlyabich & Melda Sezen & Seokjoon Oh & Haiming Zhu & Brandon Fowler & Boyuan Zhang & Wei Wang & Chang-Yong Nam & Matthew Y. Sf, 2015. "Molecular helices as electron acceptors in high-performance bulk heterojunction solar cells," Nature Communications, Nature, vol. 6(1), pages 1-8, November.
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