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Journal of Materials Science

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01-02-2014

Double-sided transparent electrodes of TiO₂ nanotube arrays for highly efficient CdS quantum dot-sensitized photoelectrodes

Authors: Chong Chen, Fumin Li, Guoqiang Li, Furui Tan, Shengjun Li, Lanyu Ling

Published in: Journal of Materials Science | Issue 4/2014

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Abstract

A novel double-sided CdS quantum dots-sensitized TiO₂ nanotube (TNT)/ITO photoelectrode is fabricated to improve the energy conversion efficiencies of quantum dots-sensitized solar cells (QDSCs). Our experimental results show that the double-sided CdS quantum dots-sensitized TNT/ITO photoelectrodes show enhanced light absorption. As a consequence, the photoelectrochemical response of the CdS/TNT/ITO photoelectrode is much improved compared with single-sided CdS sensitized TNT arrays on Ti substrate (i.e., CdS/TNT/Ti photoelectrode). An optimum conversion efficiency of 7.5 % is achieved by the double-sided CdS(15)/TNT/ITO photoelectrode, which is an enhancement of about 120 % when compared with the single-sided CdS/TNT/Ti photoelectrode. Our results demonstrate that the energy conversion efficiencies of QDSCs can be improved by designing a new photoelectrode structure.

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Title: Double-sided transparent electrodes of TiO2 nanotube arrays for highly efficient CdS quantum dot-sensitized photoelectrodes
Authors: Chong Chen
Fumin Li
Guoqiang Li
Furui Tan
Shengjun Li
Lanyu Ling
Publication date: 01-02-2014
Publisher: Springer US
Published in: Journal of Materials Science / Issue 4/2014
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-013-7875-7

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