Please use this identifier to cite or link to this item: https://doi.org/10.1039/c2ra20542d
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dc.titleEnhanced conversion efficiency of flexible dye-sensitized solar cells by optimization of the nanoparticle size with an electrophoretic deposition technique
dc.contributor.authorXue, Z.
dc.contributor.authorZhang, W.
dc.contributor.authorYin, X.
dc.contributor.authorCheng, Y.
dc.contributor.authorWang, L.
dc.contributor.authorLiu, B.
dc.date.accessioned2014-10-09T06:46:58Z
dc.date.available2014-10-09T06:46:58Z
dc.date.issued2012-08-28
dc.identifier.citationXue, Z., Zhang, W., Yin, X., Cheng, Y., Wang, L., Liu, B. (2012-08-28). Enhanced conversion efficiency of flexible dye-sensitized solar cells by optimization of the nanoparticle size with an electrophoretic deposition technique. RSC Advances 2 (18) : 7074-7080. ScholarBank@NUS Repository. https://doi.org/10.1039/c2ra20542d
dc.identifier.issn20462069
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/88846
dc.description.abstractTo optimize the conversion efficiency of plastic dye-sensitized solar cells fabricated by the electrophoretic deposition technique, anatase TiO 2 nanoparticles of various sizes from 10 nm to 27 nm have been synthesized via a simple hydrothermal process. The obtained TiO 2 nanoparticles have been characterized by X-ray diffraction and high resolution transmission electron microscopy, which confirmed that the synthesized nanoparticles are in the pure anatase phase. Rigid devices based on D149-sensitized TiO 2 particles with a size of 19 nm showed the highest conversion efficiency of 7.0% among the four different devices, which was measured under illumination of AM 1.5G, 100 mWcm -2. The effect of the particle size on the photovoltaic performance of DSSCs has been systemically studied using photoelectrochemical characterizations, including intensity modulated photocurrent spectroscopy and intensity modulated photovoltage spectroscopy. The good photovoltaic performance for 19 nm TiO 2 is ascribed to the good dye loading, an efficient electron transport and the high charge collection efficiency in the photoanode. Moreover, plastic DSSCs based on 19 nm TiO 2 presented a conversion efficiency of 6.0% (AM 1.5G, 100 mWcm -2) under optimized conditions, showing about a 20% enhancement in the conversion efficiency as compared to that based on commercial Degussa P25 TiO 2 (5.2%). These results demonstrate that optimization of the TiO 2 nanoparticle size for devices fabricated using the EPD technique is an alternative method to achieve highly efficient plastic dye-sensitized solar cells. © 2012 The Royal Society of Chemistry.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1039/c2ra20542d
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1039/c2ra20542d
dc.description.sourcetitleRSC Advances
dc.description.volume2
dc.description.issue18
dc.description.page7074-7080
dc.identifier.isiut000306946500011
Appears in Collections:Staff Publications

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