CUED Publications database

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

Chen, J and Li, C and Zhao, DW and Lei, W and Zhang, Y and Cole, MT and Chu, DP and Wang, BP and Cui, YP and Sun, XW and Milne, WI (2010) A quantum dot sensitized solar cell based on vertically aligned carbon nanotube templated ZnO arrays. Electrochemistry Communications, 12. pp. 1432-1435. ISSN 1388-2481

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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). © 2010 Elsevier B.V.

Item Type: Article
Uncontrolled Keywords: CdSe Quantum dot Solar cell VACNT ZnO
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:25
Last Modified: 08 Dec 2014 02:22
DOI: 10.1016/j.elecom.2010.08.001