Review on metal, binary and ternary alloy as counter electrode for dye-sensitized solar cells
摘要
The novelty of this review is the use of single metal, binary and ternary alloy as counter electrode (CE) in dye-sensitized solar cells (DSSCs). Alloy can be divided into binary and ternary alloys. Some properties of the metals used in CE in DSSC are described. The power conversion efficiency (PCE) of the device using those alloys are presented and compared with that of the device employing Pt free CE. This paper also describes the relationship of the PCE with the electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and Tafel polarization parameters. As conclusions, the efficiency of the DSSC can be further improved by using binary and ternary whose metal components are compatible to each other. The efficiency of the device using binary and ternary alloy reached the highest value of 9.08 and 9.07%, respectively.