Please use this identifier to cite or link to this item: https://doi.org/10.1039/c2jm33211f
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dc.titleCdSe-sensitized mesoscopic TiO 2 solar cells exhibiting >5% efficiency: Redundancy of CdS buffer layer
dc.contributor.authorHossain, M.A.
dc.contributor.authorJennings, J.R.
dc.contributor.authorShen, C.
dc.contributor.authorPan, J.H.
dc.contributor.authorKoh, Z.Y.
dc.contributor.authorMathews, N.
dc.contributor.authorWang, Q.
dc.date.accessioned2014-10-07T09:48:00Z
dc.date.available2014-10-07T09:48:00Z
dc.date.issued2012-08-28
dc.identifier.citationHossain, M.A., Jennings, J.R., Shen, C., Pan, J.H., Koh, Z.Y., Mathews, N., Wang, Q. (2012-08-28). CdSe-sensitized mesoscopic TiO 2 solar cells exhibiting >5% efficiency: Redundancy of CdS buffer layer. Journal of Materials Chemistry 22 (32) : 16235-16242. ScholarBank@NUS Repository. https://doi.org/10.1039/c2jm33211f
dc.identifier.issn09599428
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/86208
dc.description.abstractSemiconductor-sensitized TiO 2 solar cells employing CdSe as a light absorber demonstrate superior photovoltaic performance to the best-performing cascaded CdS/CdSe cells with practically identical optical density in the study. A careful comparison between CdSe and CdS/CdSe sensitized cells reveals that while CdS can greatly promote the subsequent growth of CdSe in the cascade electrodes and hence light harvesting, the presence of a CdS buffer layer impedes the injection of electrons from CdSe to TiO 2 and accelerates charge recombination at the TiO 2/sensitizer interface. As a result, better performance was achieved with CdSe-sensitized solar cells when light absorption is identical to that of CdS/CdSe cells, making the CdS buffer layer redundant. CdSe-sensitized TiO 2 solar cells incorporating light scattering layers and an aqueous polysulfide electrolyte yielded an unprecedented power conversion efficiency of up to 5.21% under simulated AM 1.5, 100 mW cm -2 illumination. © The Royal Society of Chemistry 2012.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1039/c2jm33211f
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.contributor.departmentCTR FOR REM IMAGING,SENSING & PROCESSING
dc.description.doi10.1039/c2jm33211f
dc.description.sourcetitleJournal of Materials Chemistry
dc.description.volume22
dc.description.issue32
dc.description.page16235-16242
dc.description.codenJMACE
dc.identifier.isiut000306708700012
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