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Article

“Paper Dye-Sensitized Solar Cell” Based on Carbon-Nanotube-Composite Papers

Graduate School of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
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Energies 2020, 13(1), 57; https://doi.org/10.3390/en13010057
Received: 20 November 2019 / Revised: 13 December 2019 / Accepted: 19 December 2019 / Published: 20 December 2019
(This article belongs to the Special Issue Advanced Dye-Sensitized Solar Cells)
We propose a paper solar cell based on carbon nanotube (CNT)-composite papers. To fabricate this cell, we use dye-sensitized solar cells (DSCs) for generating power through the redox reaction of dyes in conjunction with CNT-composite papers, which are composite materials containing CNTs and pulp (raw paper material) that can be fabricated easily by using a method based on the Japanese washi papermaking technique. The demand for CNT applications is expected to increase due to their high conductivity and metallic or semiconducting characteristics. This CNT-composite paper can also have metallic or semiconducting characteristics based on the contained CNTs in the composite paper. We previously fabricated a DSC that generates electricity by using CNT-composite papers stacked in a typical DSC structure. However, the conversion efficiency of this DSC was just 0.188%, which is not practical. To overcome this low power generation issue, we tried improving the DSC structure by applying electrodes to the CNT-composite papers in grid patterns for efficient current collection and applying an optimally mixed dye for efficient electron excitation. Results showed that the conversion efficiency improved to 0.58%. Moreover, we demonstrated that using a mixed dye can improve the conversion efficiency of the paper DSC. We expect these types of CNT-composite papers to be used as material for new DSCs. View Full-Text
Keywords: carbon nanotube; carbon-nanotube-composite paper; dye; dye-sensitized solar cell; flexible device; paper carbon nanotube; carbon-nanotube-composite paper; dye; dye-sensitized solar cell; flexible device; paper
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MDPI and ACS Style

Ogata, Y.; Iguchi, K.; Oya, T. “Paper Dye-Sensitized Solar Cell” Based on Carbon-Nanotube-Composite Papers. Energies 2020, 13, 57. https://doi.org/10.3390/en13010057

AMA Style

Ogata Y, Iguchi K, Oya T. “Paper Dye-Sensitized Solar Cell” Based on Carbon-Nanotube-Composite Papers. Energies. 2020; 13(1):57. https://doi.org/10.3390/en13010057

Chicago/Turabian Style

Ogata, Yuya, Kodai Iguchi, and Takahide Oya. 2020. "“Paper Dye-Sensitized Solar Cell” Based on Carbon-Nanotube-Composite Papers" Energies 13, no. 1: 57. https://doi.org/10.3390/en13010057

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