A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays

J. Chen, C. Li, D. W. Zhao, Wei Lei, Y. Zhang, Matthew Cole, D. P. Chu, B. P. Wang, Y. P. Cui, X. W. Sun, W I Milne

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

We report on a quantum dot sensitized solar cell (QDSSC) based on ZnO nanorod coated vertically aligned carbon nanotubes (VACNTs). Electrochemical impedance spectroscopy shows that the electron lifetime for the device based on VACNT/ZnO/CdSe is longer than that for a device based on ZnO/CdSe, indicating that the charge recombination at the interface is reduced by the presence of the VACNTs. Due to the increased surface area and longer electron lifetime, a power conversion efficiency of 1.46% is achieved for the VACNT/ZnO/CdSe devices under an illumination of one Sun (AM 1.5G, 100 mW/cm2).

Original languageEnglish
Pages (from-to)1432-1435
Number of pages4
JournalElectrochemistry Communications
Volume12
Issue number10
DOIs
Publication statusPublished - Oct 2010

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Carbon Nanotubes
Semiconductor quantum dots
Carbon nanotubes
Solar cells
Electrons
Nanorods
Electrochemical impedance spectroscopy
Sun
Conversion efficiency
Lighting

Keywords

  • CdSe
  • Quantum dot
  • Solar cell
  • VACNT
  • ZnO

ASJC Scopus subject areas

  • Electrochemistry

Cite this

A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays. / Chen, J.; Li, C.; Zhao, D. W.; Lei, Wei; Zhang, Y.; Cole, Matthew; Chu, D. P.; Wang, B. P.; Cui, Y. P.; Sun, X. W.; Milne, W I.

In: Electrochemistry Communications, Vol. 12, No. 10, 10.2010, p. 1432-1435.

Research output: Contribution to journalArticle

Chen, J, Li, C, Zhao, DW, Lei, W, Zhang, Y, Cole, M, Chu, DP, Wang, BP, Cui, YP, Sun, XW & Milne, WI 2010, 'A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays', Electrochemistry Communications, vol. 12, no. 10, pp. 1432-1435. https://doi.org/10.1016/j.elecom.2010.08.001
Chen, J. ; Li, C. ; Zhao, D. W. ; Lei, Wei ; Zhang, Y. ; Cole, Matthew ; Chu, D. P. ; Wang, B. P. ; Cui, Y. P. ; Sun, X. W. ; Milne, W I. / A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays. In: Electrochemistry Communications. 2010 ; Vol. 12, No. 10. pp. 1432-1435.
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