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Voltage enhancement in dye-sensitized solar cell using (001)-oriented anatase TiO2 nanosheets

Laskova, Barbora, Zukalova, Marketa, Kavan, Ladislav, Chou, Alison, Liska, Paul, Zhang, Wei, Bin, Liu, Kubat, Pavel, Ghadiri, Elham, Moser, Jacques E. and Grätzel, Michael (2012) Voltage enhancement in dye-sensitized solar cell using (001)-oriented anatase TiO2 nanosheets Journal of Solid State Electrochemistry, 16 (9). pp. 2993-3001.

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A nanocrystalline TiO2 (anatase) nanosheet exposing mainly the (001) crystal faces was tested as photoanode material in dye-sensitized solar cells. The nanosheets were prepared by hydrothermal growth in HF medium. Good-quality thin films were deposited on F-doped SnO2 support from the TiO2 suspension in ethanolic or aqueous media. The anatase (001) face adsorbs a smaller amount of the used dye sensitizer (C101) per unit area than the (101) face which was tested as a reference. The corresponding solar cell with sensitized (001)-nanosheet photoanode exhibits a larger open-circuit voltage than the reference cell with (101)-terminated anatase nanocrystals. The voltage enhancement is attributed to the negative shift of flatband potential for the (001) face. This conclusion rationalizes earlier works on similar systems, and it indicates that careful control of experimental conditions is needed to extract the effect of band energetic on the current/voltage characteristics of dye-sensitized solar cell.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Laskova, Barbora
Zukalova, Marketa
Kavan, Ladislav
Chou, Alison
Liska, Paul
Bin, Liu
Kubat, Pavel
Ghadiri, Elham
Moser, Jacques E.
Grätzel, Michael
Date : September 2012
DOI : 10.1007/s10008-012-1729-0
Copyright Disclaimer : # The Author(s) 2012. This article is published with open access at
Uncontrolled Keywords : Titanium dioxide; Anatase; Dye-sensitized solar cell
Depositing User : Clive Harris
Date Deposited : 02 Jun 2017 08:54
Last Modified : 16 Jan 2019 18:53

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