Y(2)O(3):Er(3+) 纳米棒在染料敏化太阳能电池中的应用。

Application of Y(2)O(3):Er(3+) nanorods in dye-sensitized solar cells.

机构信息

Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Institute of Materials Physical Chemistry, Huaqiao University, Chenhua North Road 269, Quanzhou, Fujian 362021, PR China.

出版信息

ChemSusChem. 2012 Jul;5(7):1307-12. doi: 10.1002/cssc.201100596. Epub 2012 Mar 29.

DOI:10.1002/cssc.201100596

PMID:22467355

Abstract

Y(2)O(3):Er(3+) nanorods are synthesized by means of a hydrothermal method and then introduced into a TiO(2) electrode in a dye-sensitized solar cell (DSSC). Y(2)O(3):Er(3+) 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 TiO(2) 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(2)O(3):Er(3+) (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 Y(2)O(3):Er(3+).

摘要

Y(2)O(3):Er(3+) 纳米棒通过水热法合成，然后引入染料敏化太阳能电池（DSSC）中的 TiO(2)电极。Y(2)O(3):Er(3+) 通过上转换发光提高了红外光的捕获，增加了 DSSC 的光电流。稀土离子通过掺杂效应提高了 TiO(2)电极的能级，从而提高了光电压。一维纳米棒结构改善了光散射。掺杂层中含有 5wt%Y(2)O(3):Er(3+)的 DSSC 的光电能量转换效率达到 7.0%，与不含 Y(2)O(3):Er(3+)的 DSSC 相比提高了 19.9%。