Glucose Aided Preparation of Tungsten Sulfide/Multi-Wall Carbon Nanotube Hybrid and Use as Counter Electrode in Dye-Sensitized Solar Cells
- Resource Type
- Article
- Authors
- Wu, Jihuai; Yue, Gentian; Xiao, Yaoming; Huang, Miaoliang; Lin, Jianming; Fan, Leqing; Lan, Zhang; Lin, Jeng-Yu
- Source
- ACS Applied Materials & Interfaces; December 2012, Vol. 4 Issue: 12 p6530-6536, 7p
- Subject
- Language
- ISSN
- 19448244
The tungsten sulfide/multi-wall carbon nanotube (WS2/MWCNT) hybrid was prepared in the presence of glucose by the hydrothermal route. The hybrid materials were used as counter electrode in the dye-sensitized solar cell (DSSC). The results of cyclic voltammetry measurement and electrochemical impedance spectroscopy indicated that the glucose aided prepared (G-A) WS2/MWCNT electrode had low charge-transfer resistance (Rct) and high electrocatalytic activity for triiodide reduction. The excellent electrochemical properties for (G-A) WS2/MWCNT electrode is due to the synergistic effects of WS2and MWCNTs, as well as amorphous carbon introduced by glucose. The DSSC based on the G-A WS2/MWCNT counter electrode achieved a high power conversion efficiency of 7.36%, which is comparable with the performance of the DSSC using Pt counter electrode (7.54%).