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Aggregated mesoporous nanoparticles for high surface area light scattering layer TiO2 photoanodes in Dye-sensitized Solar Cells.


ABSTRACT: Hierarchically structured aggregates, consisting of TiO2 nanoparticles were produced via one-step solvothermal syntheses with a mixed solvent system containing both acetic acid and ethanol. Two of the resulting structures, one ~700?nm and the other ~300?nm in diameter, were found to be comprised of 8.5?nm and 10.5?nm anatase crystals, and possess specific surface areas of 138 and 106?m2?g-1 respectively. These particles were incorporated into Dye-sensitized Solar Cells (DSCs) as high surface area scattering layers, along with a layer of a transparent material. Solar-to-electric conversion efficiencies (PCE) of 9.1% and 8.2% were recorded using these aggregated particles as compared to those of commonly used large particles scattering layer 7.4%.

SUBMITTER: Al-Attafi K 

PROVIDER: S-EPMC5583389 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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Aggregated mesoporous nanoparticles for high surface area light scattering layer TiO<sub>2</sub> photoanodes in Dye-sensitized Solar Cells.

Al-Attafi Kadhim K   Nattestad Andrew A   Yamauchi Yusuke Y   Dou Shi Xue SX   Kim Jung Ho JH  

Scientific reports 20170904 1


Hierarchically structured aggregates, consisting of TiO<sub>2</sub> nanoparticles were produced via one-step solvothermal syntheses with a mixed solvent system containing both acetic acid and ethanol. Two of the resulting structures, one ~700 nm and the other ~300 nm in diameter, were found to be comprised of 8.5 nm and 10.5 nm anatase crystals, and possess specific surface areas of 138 and 106 m<sup>2</sup> g<sup>-1</sup> respectively. These particles were incorporated into Dye-sensitized Solar  ...[more]

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