dc.contributor.authorShukla, Sudhanshu
dc.contributor.authorLoc, Nguyen Huu
dc.contributor.authorBoix, Pablo Perez
dc.contributor.authorKoh, Teck Ming
dc.contributor.authorPrabhakar, Rajiv Ramanujam
dc.contributor.authorHemant Kumar, Mulmudi
dc.contributor.authorZhang, Jun
dc.contributor.authorChen, Shi
dc.contributor.authorNg, Chin Fan
dc.contributor.authorHuan, Cheng Hon Alfred
dc.contributor.authorMathews, Nripan
dc.contributor.authorSritharan, Thirumany
dc.contributor.authorXiong, Qihua
dc.identifier.citationShukla, S., Loc, N. H., Boix, P. P., Koh, T. M., Prabhakar, R. R., Mulmudi, H. K., et al. (2014). Iron pyrite thin film counter electrodes for dye-sensitized solar cells : high efficiency for iodine and cobalt redox electrolyte cells. ACS nano, 8(10), 10597-10605.en_US
dc.description.abstractIron pyrite has been the material of interest in the solar community due to its optical properties and abundance. However, the progress is marred due to the lack of control on the surface and intrinsic chemistry of pyrite. In this report, we show iron pyrite as an efficient counter electrode (CE) material alternative to the conventional Pt and poly(3,4-ethylenedioxythiophene (PEDOT) CEs in dye-sensitized solar cells (DSSCs). Pyrite film CEs prepared by spray pyrolysis are utilized in I3–/I– and Co(III)/Co(II) electrolyte-mediated DSSCs. From cyclic voltammetry and impedance spectroscopy studies, the catalytic activity is found to be comparable with that of Pt and PEDOT in I3–/I– and Co(III)/Co(II) electrolyte, respectively. With the I3–/I– electrolyte, photoconversion efficiency is found to be 8.0% for the pyrite CE and 7.5% for Pt, whereas with Co(III)/Co(II) redox DSSCs, efficiency is found to be the same for both pyrite and PEDOT (6.3%). The excellent performance of the pyrite CE in both the systems makes it a distinctive choice among the various CE materials studied.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.format.extent9 p.en_US
dc.relation.ispartofseriesACS nanoen_US
dc.rights© 2014 American Chemical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by ACS Nano, American Chemical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/nn5040982].en_US
dc.subjectDRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films
dc.titleIron pyrite thin film counter electrodes for dye-sensitized solar cells : high efficiency for iodine and cobalt redox electrolyte cellsen_US
dc.typeJournal Article
dc.contributor.researchEnergy Research Institute @NTUen_US
dc.contributor.researchEnergy Research Institute @NTU
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen_US
dc.description.versionAccepted versionen_US

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