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Title: TiO2 composing with pristine, metallic or semiconducting single-walled carbon nanotubes : which gives the best performance for a dye-sensitized solar cell
Authors: Guai, Guan Hong
Li, Yao
Ng, Chee Mang
Li, Chang Ming
Chan-Park, Mary B.
Issue Date: 2012
Source: Guai, G. H., Li, Y., Ng, C. M., Li, C. M., & Chan-Park, M. B. (2012). TiO2 Composing with Pristine, Metallic or Semiconducting Single-Walled Carbon Nanotubes: Which Gives the Best Performance for a Dye-Sensitized Solar Cell. ChemPhysChem, 13(10), 2566-2572.
Series/Report no.: ChemPhysChem
Abstract: Different types of single-walled carbon nanotubes (SWCNTs), pristine (p-), metallic (m-) and semiconducting (s-) are incorporated into TiO2 photoanodes to improve the dye-sensitized solar-cell (DSSC) performance and their effects on the device performance are further investigated. Although all three types of SWCNTs are found to have comparable structural morphologies and a reduced charge transport resistivity for the photoanodes, only the semiconducting one was able to suppress charge-recombination events, resulting in even greater improvement of DSSC performances. This is very likely to be ascribed to the higher energy barrier of s-SWCNTs compared to both m- and p-SWCNTs to block the back flowing of dye-injected electrons for I3− reduction in the charge recombination process.
ISSN: 1439-4235
DOI: 10.1002/cphc.201200156
Rights: © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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