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 language | English |
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Pages (from-to) | 1307-1312 |
Number of pages | 6 |
Journal | ChemSusChem |
Volume | 5 |
Issue number | 7 |
DOIs | |
Publication status | Published - 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)