Sulfur-Doped Graphene with Iron Pyrite (FeS2) as an Efficient and Stable Electrocatalyst for the Iodine Reduction Reaction in Dye-Sensitized Solar Cells

Munkhbayar Batmunkh, Aabhash Shrestha, Guo Gao, LePing Yu, Jing Zhao, Mark Biggs, Cameron Shearer, Joseph Shapter

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    16 Citations (Scopus)

    Abstract

    As an alternative to platinum (Pt), hybrid electrocatalysts based on sulfur-doped graphene with FeS2 microspheres (SGN-FeS2) were used as a counter electrode (CE) in dye-sensitized solar cells (DSSCs). Benefiting from the high conductivity of SGN and excellent electrocatalytic activity of the FeS2, the bifunctional hybrid electrocatalyst-based device displays a power conversion efficiency (PCE) of 8.1%, which is comparable to that (8.3%) of traditional Pt CE-based DSSC, while also exhibiting excellent stability in ambient conditions. These characteristics, in addition to its low-cost and facile preparation, make the SGN–FeS2 hybrid an ideal CE material for DSSCs.

    Original languageEnglish
    Article number1700011
    Pages (from-to)Art: 1700011
    Number of pages6
    JournalSolar RRL
    Volume1
    Issue number3-4
    DOIs
    Publication statusPublished - 2017

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