Enhanced conversion efficiency of quasi solid state dye sensitized solar cells based on functionalized multi-walled carbon nanotubes incorporated TiO2 photoanode |
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Authors: | Momina Khannam Shyamalima Sharma Pronob Gogoi Swapan Kumar Dolui |
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Affiliation: | 1.Department of Chemical Sciences,Tezpur University,Tezpur,India |
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Abstract: | A series of quasi solid state dye sensitized solar cells were fabricated based on the different weight% of MWCNT@TiO2 photoanode. The MWCNT@TiO2 nanocomposites were synthesized by simple wet impregation method. The incorporation of MWCNT into the TiO2 was confirmed by X-ray diffraction, energy dispersive X-ray spectrum and UV–visible spectroscopy. The morphological properties of the nanocomposites were analyzed by transmission electron microscopic analysis. The performance of the quasi solid state dye sensitized solar cell depends solely on the MWCNT content of the photoanode, as the same PVA polymer gel electrolyte has been used. Compared to the conventional TiO2 photoanode based DSSCs 0.05 wt% MWCNT containing photoanode provide the maximum short circuit current density and the photo conversion efficiency of 9.811 mA/cm?2 and 3.59 %. The introduction of MWCNT into the TiO2 results in the rapid electron transport in the photoanode by forming a conductive network due to which improvement in the short circuit current was observed. |
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