journal article·2011-03

TiO2/modified natural clay semiconductor as a potential electrode for natural dye-sensitized solar cell

Ni-on Saelim, Rathanawan Magaraphan, Thammanoon Sreethawong

Ceramics International· Volume 37· Issue 2
Publisher page

Abstract

Abstract TiO 2 /modified natural bentonite clay semiconductor, as a potential electrode of dye-sensitized solar cell, having a Ti:Si molar ratio of 85:15 was, for the first time, compared with pure TiO 2 (commercial P25) electrode in terms of solar cell efficiency and characteristics. 4-Chloro-2,5-difluorobenzoic acid and 4-(chloromethyl)benzoyl chloride were added to the electrodes to increase light harvesting ability of natural dyes extracted from red cabbage, rosella, and blue pea. The results showed that the TiO 2 /clay semiconductor provided a higher surface area but a slightly lower efficiency than the pure TiO 2 . The best natural sensitizer was found to be the dye extracted from red cabbage. Besides, the 4-(chloromethyl)benzoyl chloride provided a higher short circuit current for the TiO 2 /clay semiconductor.
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Research context

OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Polymer Nanocomposite Synthesis and Irradiation · Nanoparticles: synthesis and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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