Application of Y2O3:Er3+ nanorods in dye-sensitized solar cells

Jiangli Wang, Jihuai Wu, Jianming Lin, Miaoliang Huang, Yunfang Huang, Zhang Lan, Yaoming Xiao, Gentian Yue, Shu Yin, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    63 Citations (Scopus)

    Abstract

    Y2O3:Er3+ nanorods are synthesized by means of a hydrothermal method and then introduced into a TiO2 electrode in a dye-sensitized solar cell (DSSC). Y2O 3:Er3+ improves infrared light harvest via up-conversion luminescence and increases the photocurrent of the DSSC. The rare earth ions improve the energy level of the TiO2 electrode through a doping effect and thus increase the photovoltage. The light scattering is ameliorated by the one-dimensional nanorod structure. The DSSC containing Y 2O3:Er3+ (5 wt %) in the doping layer achieves a light-to-electric energy conversion efficiency of 7.0 %, which is an increase of 19.9 % compared to the DSSC lacking of Y2O3:Er 3+. Illuminating rare earths: Y2O3:Er 3+ nanorods are introduced into a TiO2 electrode in a dye-sensitized solar cell (DSSC). Y2O3:Er3+ improves infrared light harvesting and photocurrent through up-conversion luminescence. The rare earth ions improve the energy level of the TiO 2 electrode through a doping effect and thus increase the photovoltage. The DSSC doped with Y2O3:Er3+ achieves an energy conversion efficiency of 7.0 %, which is 19.9 % higher than the DSSC without Y2O3:Er3+.

    Original languageEnglish
    Pages (from-to)1307-1312
    Number of pages6
    JournalChemSusChem
    Volume5
    Issue number7
    DOIs
    Publication statusPublished - 2012 Jan 1

    Keywords

    • doping
    • luminescence
    • nanorods
    • rare earths
    • solar cell

    ASJC Scopus subject areas

    • Environmental Chemistry
    • Chemical Engineering(all)
    • Materials Science(all)
    • Energy(all)

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