CdSe/ZnS (Core/Shell) Quantum Dots Multi-wallled Carbon Nanotubes (MWCNTs) on a Stainless Steel as a Photoanode in Solar Cells

Junthorn Udorn, Hayashi Sachio, Shengwen Hou, Chaoyang Li, Akimitsu Hatta, Hiroshi Furuta

2017

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, resulting in the higher PCE.

Paper Citation

in Harvard Style

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 - Volume 1: PHOTOPTICS, ISBN 978-989-758-223-3, pages 158-163. DOI: 10.5220/0006103801580163

in Bibtex Style

@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 - Volume 1: PHOTOPTICS,},
year={2017},
pages={158-163},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006103801580163},
isbn={978-989-758-223-3},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: 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
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