Application of Yb3 , Er3 -doped yttrium oxyfluoride nanocrystals in dye-sensitized solar cells

作者：Wang Jiangli; Lin Jianming; Wu Jihuai; Huang Miaoliang; Lan Zhang; Chen Yuan; Tang Shen; Fan Leqing; Huang Yunfang

来源：Electrochimica Acta, 2012, 70: 131-135.

DOI：10.1016/j.electacta.2012.03.047

• Dye-sensitized solar cells
• Rare-earth ions
• Conversion luminescence
• p-Type doping

Yb3+, Er3+-doped yttrium oxyfluoride [YOF:(Yb3+, Er3+)], acting as a luminescence medium, is introduced into the TiO2 electrode. Owing to the effect of up-conversion, it increases the photocurrent and efficiency of the DSSC. Besides, as a p-type dopant, YOF:(Yb3+, Er3+) enhances the Fermi level of TiO2 film and the photovoltage of the DSSC. When the doping amount of YOF:(Yb3+, Er3+) is 7 wt.%, the light-to-electric energy conversion efficiency of the DSSC reaches 7.217%, increasing by a factor of 1.23 compared to that of a DSSC without YOF:(Yb3+, Er3+)dopant.

• 出版日期2012-5-30
• 单位华侨大学