Quasi-Solid State DSSC Performance Enhancement by Bilayer Mesoporous TiO2 Structure Modification

Ruri A. Wahyuono; D.D. Risanti

doi:10.4028/www.scientific.net/AMR.789.93

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Quasi-Solid State DSSC Performance Enhancement by Bilayer Mesoporous TiO₂ Structure Modification

Abstract:

Quasi-solid state dye-sensitized solar cells (DSSC) having bilayer structure were made by using nanocrystalline anatase-rutile TiO₂to enhance the photovoltaic performance. The bilayer structures were coated to FTO glass using doctor blade technique with total active area of 0.4 cm². Cyanidin dye extracted from mangosteen pericarp was used as photosensitizer. Bilayer anatase-anatase was formed with surface area of 99.9 m²/g and pore volume of 0.23 cc/g while anatase-rutile structure has surface area of 103.5 m²/g and pore volume of 0.21 cc/g. Overall energy conversion efficiencies under illumination of 10 mW/cm² of 0.461% and 0.1365% were achieved for DSSC employing anatase-anatase and anatase-rutile TiO₂structure, respectively. Both efficiencies were higher than that of monolayer anatase and rutile TiO₂structure whose efficiencies in the range of 0.02% to 0.037%. The photocurrent action spectra of bilayer structures performed high efficiency spectrum in the wavelength range of 420 480 nm owing to cyanidin effect of dye.

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Advanced Materials Research (Volume 789)

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93-96

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https://doi.org/10.4028/www.scientific.net/AMR.789.93

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September 2013

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Ruri A. Wahyuono, D.D. Risanti

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Anatase, Bilayer TiO₂, Cyanidin, IPCE, Quasi-Solid State DSSC, Rutile

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