Enhanced charge collection and reduced recombination of CdS∕TiO2 quantum-dots sensitized solar cells in the presence of single-walled carbon nanotubes

Enhanced charge collection and reduced recombination of CdS∕TiO2 quantum-dots sensitized solar cells in the presence of single-walled carbon nanotubes

This paper reports the modification of CdS∕TiO2 quantum-dot sensitized solar cells by using single-walled carbon nanotubes (SWCNTs) on indium-doped tin oxide (ITO) electrodes. The presence of the SWCNT layers on an ITO electrode increased the short-circuit current under the irradiation condition and...

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Veröffentlicht in:Applied physics letters 2008-04, Vol.92 (15)
Hauptverfasser: Lee, Wonjoo, Lee, Jungwoo, Lee, Sangjin, Yi, Whikun, Han, Sung-Hwan, Cho, Byung Won
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container_issue 15
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container_title Applied physics letters
container_volume 92
creator Lee, Wonjoo
Lee, Jungwoo
Lee, Sangjin
Yi, Whikun
Han, Sung-Hwan
Cho, Byung Won
description This paper reports the modification of CdS∕TiO2 quantum-dot sensitized solar cells by using single-walled carbon nanotubes (SWCNTs) on indium-doped tin oxide (ITO) electrodes. The presence of the SWCNT layers on an ITO electrode increased the short-circuit current under the irradiation condition and also reduced the charge recombination process under the dark condition. The power conversion efficiency of CdS∕TiO2 on ITO increased 50.0% in the presence of SWCNTs due to the improved charge-collecting efficiency and reduced recombination.
doi_str_mv 10.1063/1.2911740
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title Enhanced charge collection and reduced recombination of CdS∕TiO2 quantum-dots sensitized solar cells in the presence of single-walled carbon nanotubes
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