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Jiangli Wang, Prof. Jihuai Wu, Prof. Jianming Lin, Prof. Miaoliang Huang, Dr. Yunfang Huang, Dr. Zhang Lan, Dr. Yaoming Xiao, Dr. Gentian Yue, Dr. Shu Yin and Prof. Tsugio Sato Application of Y2O3:Er3+ Nanorods in Dye-Sensitized Solar Cells ChemSusChem 5

Article first published online: 29 MAR 2012 | DOI: 10.1002/cssc.201100596

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Illuminating rare earths: Y2O3:Er3+ 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 TiO2 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+.

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