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Authors: Junthorn Udorn 1 ; Hayashi Sachio 2 ; Shengwen Hou 2 ; Chaoyang Li 2 ; Akimitsu Hatta 2 and Hiroshi Furuta 2

Affiliations: 1 Kochi University of Technology and Thai-Nichi Institute of Technology (TNI), Japan ; 2 Kochi University of Technology, Japan

Keyword(s): Multi-walled Carbon Nanotubes (MWCNTs), Quantum Dots (QDs), Quantum Dots Sensitized Solar Cells (QDSSCs), Power Conversion Efficiency (PCE).

Abstract: Multi-walled carbon nanotube (MWCNT) forests grown on a stainless steel substrate were used as a photoanode in CdSe/ZnS (core/shell) quantum dot (QD) sensitized solar cells (QDSSCs). QD-treated MWCNTs on the conductive metal stainless substrate showed a higher power conversion efficiency (PCE) of 0.014% than those grown on a doped silicon substrate with a PCE of 0.005% under AM 1.5 sunlight intensity (100 mW/cm2). This higher efficiency can be attributed to the lower sheet resistance of 0.0045 Ω/sq for the metal substrate than the value of 259 Ω/sq for doped silicon. Additionally, the relationship between the reflectance of as-grown CNT and PCE is also examined. QDSSC fabricated from CNT of lower reflectance of 1.9 % at a height of 25 μm showed a better efficiency because the lower reflectance indicates the scattering of light repeatedly into deeper CNT forest resulting in higher absorption which indicates a higher surface area of CNTs to adsorb much amount of QDs on CNT forests, res ulting in the higher PCE. (More)

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Paper citation in several formats:
Udorn, J.; Sachio, H.; Hou, S.; Li, C.; Hatta, A. and Furuta, H. (2017). CdSe/ZnS (Core/Shell) Quantum Dots Multi-wallled Carbon Nanotubes (MWCNTs) on a Stainless Steel as a Photoanode in Solar Cells. In Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS; ISBN 978-989-758-223-3; ISSN 2184-4364, SciTePress, pages 158-163. DOI: 10.5220/0006103801580163

@conference{photoptics17,
author={Junthorn Udorn. and Hayashi Sachio. and Shengwen Hou. and Chaoyang Li. and Akimitsu Hatta. and Hiroshi Furuta.},
title={CdSe/ZnS (Core/Shell) Quantum Dots Multi-wallled Carbon Nanotubes (MWCNTs) on a Stainless Steel as a Photoanode in Solar Cells},
booktitle={Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS},
year={2017},
pages={158-163},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006103801580163},
isbn={978-989-758-223-3},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - CdSe/ZnS (Core/Shell) Quantum Dots Multi-wallled Carbon Nanotubes (MWCNTs) on a Stainless Steel as a Photoanode in Solar Cells
SN - 978-989-758-223-3
IS - 2184-4364
AU - Udorn, J.
AU - Sachio, H.
AU - Hou, S.
AU - Li, C.
AU - Hatta, A.
AU - Furuta, H.
PY - 2017
SP - 158
EP - 163
DO - 10.5220/0006103801580163
PB - SciTePress

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