The Impact of Porphyrin Meso-Position Steric Effect on Porphyrin Density on TiO2 Surface of DSSC

Zhe Zeng; Bao Zhang; Xiu Jun Liu; Xiao Peng; Shu Xian Meng; Ya Qing Feng

doi:10.4028/www.scientific.net/AMR.683.522

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 683The Impact of Porphyrin Meso-Position Steric...

The Impact of Porphyrin Meso-Position Steric Effect on Porphyrin Density on TiO₂ Surface of DSSC

Abstract:

We have synthesized three novel porphyrin-based sensitizers, in which different substituents were introduced to meso- position. The relationship between meso- substituent and cell performance was investigated. We find porphyrin density could be a key point that affect cell device performance. The highest cell performance was obtained with 4-trans-vinyl- (2'-(5',10',15',20'-tetra (4''-isobutylphenyl) porphyrinato zinc(II))yl) benzoic acid, a short circuit photocurrent density of 10.25 mA cm^-2 , an open –circuit voltage of 0.74 V, a fill factor of 68%, and a power conversion efficiency of 5.15% under standard AM 1.5 sunlight.

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Advanced Materials Research (Volume 683)

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522-525

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.683.522

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Online since:

April 2013

Authors:

Zhe Zeng, Bao Zhang, Xiu Jun Liu, Xiao Peng, Shu Xian Meng, Ya Qing Feng

Keywords:

DSSC, Porphyrin, Porphyrin Density

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