Enhanced performance of a dye-sensitized solar cell with a modified poly(3,4-ethylenedioxythiophene)/TiO2/FTO counter electrode |
| |
| Authors: | Sho Sakurai Masashi Takahashi |
| |
| Affiliation: | a Department of Chemistry and Energy Engineering, Tokyo City University, Tokyo 158-8557, Japan
b Research Center for Energy and Environmental Science, Advance Research Laboratory, Tokyo City University, Tokyo 158-0082, Japan |
| |
| Abstract: | ClO4−-poly(3,4-ethylenedioxythiophene)/TiO2/FTO (ClO4−-PEDOT/TiO2/FTO) counter electrode (CE) in dye-sensitized solar cells (DSSCs) is fabricated by using an electrochemical deposition method. Comparing with the DSSCs with ClO4−-PEDOT/FTO counter electrode, the photocurrent-voltage (I-V) measurement reveals that the photocurrent conversion efficiency (η), fill factor (FF) and short-circuit current density (JSC) of DSSCs with a ClO4−-PEDOT/TiO2/FTO CE increase. The enhanced performances of the DSSCs are attributed to the higher JSC arising from the increase of active surface area of ClO4−-PEDOT/TiO2/FTO CE. Electrochemical impedance spectra (EIS) also indicate that the charge-transfer resistance on the ClO4−-PEDOT/electrolyte interface decreases. Cyclic voltammetry results indicate that the ClO4−-PEDOT/TiO2/FTO electrode shows higher activity towards I3−/I− redox reaction than that of ClO4−-PEDOT/FTO electrode. |
| |
| Keywords: | Counter electrode ClO4&minus -PEDOT/TiO2/FTO Electrochemical impedance spectra Cyclic voltammetry Photocurrent-voltage properties |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
