Effects of Eu3+ and Er3+ Doping on Photoelectrical Performance of Dye‐Sensitized Solar Cells

• DOI: 10.1111/jace.12446
• Publication Date: 2013-06-14T13:29:06Z
• Authors: Shi‐Hua Huang
• Keywords: 02 engineering and technology; 0210 nano-technology; 01 natural sciences; 7. Clean energy; 0104 chemical sciences

A novel tri‐layer film photoelectrode structure of DSSC by introducing Eu3+ and Er3+ ions into TiO2 film was proposed. The photoelectric conversion efficiency of the DSSC with Er3+:TiO2/Eu3+:TiO2/TiO2 tri‐layer electrode reaches 7.41%, increased by a factor of 1.44 compared to that of the DSSC without Eu3+ and Er3+ doping. The higher efficiency for DSSC with the tri‐layer electrode is mainly attributed to the down‐conversion luminescence effect by Eu3+ ions from ultraviolet light to visible light and up‐conversion luminescence effect by Er3+ ions from infrared light to visible light.