A nonstoichiometric SnO(2-δ) nanocrystal-based counter electrode for remarkably improving the performance of dye-sensitized solar cells.
We report the fabrication of a highly active nonstoichiometric SnO2-δ based counter electrode for dye-sensitized solar cells (DSSCs). The introduction of oxygen vacancies into SnO2 results in a much lower charge transfer resistance and a higher polarization current density. The solar energy conversion efficiency of the SnO2-δ based DSSCs is increased by 67%.
Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua RD, Shenyang 110016, P. R. China. gangliu@imr.ac.cn.
Jian
J
Pan
Lianzhou
L
Wang
Jimmy C
JC
Yu
Gang
G
Liu
Hui-Ming
HM
Cheng