- P-ISSN 1225-0163
- E-ISSN 2288-8985
The effect of electrochemical characteristics of dye-sensitized solar cells (DSSC) upon employingmulti-wall carbon nanotube (MWCNT) on both working electrode and counter electrode were examined withusing EIS, J-V curves and UV-Vis absorption spectrometry. When 0.1 wt% of MWCNT was employed in theTiO2-MWCNT composit on working electrode, the energy conversion efficiency increased about 12.5%compared to the TiO2 only working electrode. The higher light conversion efficiency may attribut to the highelectrical conductivity of MWCNT in TiO2-MWCNT composite which improves the electron transport in theworking electrode. However, higher amount of MWCNT than 0.1 wt% in the TiO2-MWCNT compositedecreases the light conversion efficiency, which is mainly ascribed to the decreased transmittance of light byMWCNT and to the decreased adsorption of dye onto TiO2. The MWCNT employed counter electrode exhibitedmuch lower light conversion efficiency of DSSC than the Pt-counter electrode, while the MWCNT-Pt counterelectrode showed similar in light conversion efficiency to that of Pt-counter electrode.
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