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Dye-Sensitized Solar Cells Using Aluminum-Doped Zinc Oxide/Titanium Dioxide Photoanodes in Parallel

Author

Listed:
  • Jung-Chuan Chou

    (Graduate School of Electronic Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

  • Cheng-Chu Ko

    (Graduate School of Electronic Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

  • Jun-Xiang Chang

    (Graduate School of Electronic Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

  • Chih-Hsien Lai

    (Graduate School of Electronic Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

  • Yu-Hsun Nien

    (Graduate School of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

  • Po-Yu Kuo

    (Graduate School of Electronic Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

  • Huang-Hua Chen

    (Graduate School of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

  • Hui-Hsuan Hsu

    (Graduate School of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

  • Geng-Ming Hu

    (Graduate School of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliu 64002, Taiwan)

Abstract

In this study, both zinc oxide (ZnO) nanorods and aluminum-doped zinc oxide (AZO) nanosheets were deposited by hydrothermal growth on fluorine-doped tin oxide (FTO) glass. After a photoanode was added to ZnO nanorods or AZO nanosheets, the photovoltaic conversion efficiency (PCE) increased due to improved electron transport and enhanced dye absorption. The improvement in electron transport was verified by electrochemical impedance spectroscopy (EIS), and the increase in dye absorption was verified by ultraviolet-visible spectroscopy. Both of these factors facilitated an increase in PCE. Parameters for dye-sensitized solar cells (DSSCs) using ZnO nanorods/TiO 2 and AZO nanosheets/TiO 2 photoanodes were tested and the results were recorded using EIS. The results indicated that the addition of the ZnO nanorods increased the short-circuit current density ( J sc ) from 9.07 mA/cm 2 to 10.91 mA/cm 2 , the open circuit voltage ( V oc ) from 0.68 V to 0.70 V, and the PCE from 3.70% to 4.73%, respectively. When the DSSCs were produced in a parallel silver-grid device, the results showed that PCE could be increased from 3.67% to 4.04% due to the reduction in connection resistance.

Suggested Citation

  • Jung-Chuan Chou & Cheng-Chu Ko & Jun-Xiang Chang & Chih-Hsien Lai & Yu-Hsun Nien & Po-Yu Kuo & Huang-Hua Chen & Hui-Hsuan Hsu & Geng-Ming Hu, 2019. "Dye-Sensitized Solar Cells Using Aluminum-Doped Zinc Oxide/Titanium Dioxide Photoanodes in Parallel," Energies, MDPI, vol. 12(18), pages 1-13, September.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:18:p:3469-:d:265400
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    References listed on IDEAS

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    Cited by:

    1. A Reum Lee & Jae-Yup Kim, 2020. "Highly Ordered TiO 2 Nanotube Electrodes for Efficient Quasi-Solid-State Dye-Sensitized Solar Cells," Energies, MDPI, vol. 13(22), pages 1-10, November.

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