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The Influence of TiO2 Photoanode Morphology for Scattering Enhanced Properties of Dye-Sensitized Solar Cell

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Abstract:

Effect of PEG on the TiO2 electrode morphology for scattering enhanced properties of the modified paste containing TiO2 sol-gel mixed with Degussa P-25 were investigated. The high surface area of the scattering centres in this study were formed by using nano size particles ascribed from TiO2 sol-gel while the sub-micron size particles were utilized from the reaction of PEG on the Degussa P-25 particles. The pore size distributions were tailored by varying the PEG content in the fabricated electrodes. Higher surface area with adequate pore size of P30 electrode has contributed to higher JSC and efficiency (η) of 11.35450 mA/cm2 and 2.479624 %, respectively. Photocurrent action spectra of IPCE of the DSSC exhibit the maximum of 42 % at 550 nm correspond to the P30 TiO2 electrode. Overall results suggest that the incorporation of TiO2 sol-gel component mixed with TiO2 paste derived from commercially available nanopowder could enhance surface area as well as serves for better light scattering effect, while PEG addition creates adequate pore size distribution to maximize the dye adsorbed on the TiO2 electrode.

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Periodical:

Advanced Materials Research (Volume 667)

Pages:

425-434

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.667.425

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Online since:

March 2013

Authors:

Mohd Hanapiah Abdullah, Ismail Lyly Nyl, Mohamed Zahidi Musa, Mohamad Rusop Mahmood

Keywords:

Degussa P-25, Light Scattering Center, Polyethylene Glycol (PEG), Porosity, TiO2 Sol-Gel

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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