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KOYAMA, Michihisa; Hattori, Tatsuya; ZHONG, Huifeng; TSUBOI, Hideyuki; Hatakeyama, Nozomu; Endo, Akira; Takaba, Hiromitsu; Kubo, Momoji; A., DEL CARPIO Carlos; Miyamoto, Akira

doi:10.5796/electrochemistry.75.411

Cited by 2 publications

(1 citation statement)

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“…We have applied it to the study of porous structures on the micrometer scale. [10][11][12][13][14][15] Moreover, we have developed a multiscale simulation approach for a dyesensitized TiO 2 porous electrode that enables the prediction of both the material and overall properties of the system, which are important in the design of a new electrode. This is to simulate the characteristics of a DSSC device using physical properties estimated by quantum chemical calculations as well as from the results of structural analysis of the meso-scale structure constructed using a three-dimensional porous structure simulator.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Electron Diffusion in TiO₂ Porous Structures in Dye-Sensitized Solar Cells

Ogiya

Suzuki

et al. 2009

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In order to understand the behavior of electrons in complex porous structures, we have simulated electron diffusion processes in complex porous structures that have been fabricated using a system for a three-dimensional porous structure simulator, POCO 2 . For a given porosity, as the overlap ratio representing a necked porous TiO 2 structure increased, the coordination number of TiO 2 particles increased, resulting in an increase in electron flux and a decrease in trapping time. To gain better insights, we simulated the diffusion of electrons using models with different particle size distributions. This study shows that for a narrower size distribution of TiO 2 particles, a better electron diffusion process is realized. This result can be ascribed to the formation of a better TiO 2 coordination network. Consequently, through this study, we have shown that a well-formed neck between TiO 2 particles improves the electron diffusion properties of a complex porous material.

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Section: Introductionmentioning

confidence: 99%

Simulation of Electron Diffusion in TiO₂ Porous Structures in Dye-Sensitized Solar Cells

Ogiya

Suzuki

et al. 2009

jjap

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Development of Three-Dimensional Porous Structure Simulator POCO2 for Simulations of Irregular Porous Materials

Koyama¹,

Ogiya²,

Hattori³

et al. 2008

J. Comput. Chem. Jpn.

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Cited by 2 publications

References 8 publications

Simulation of Electron Diffusion in TiO₂ Porous Structures in Dye-Sensitized Solar Cells

Simulation of Electron Diffusion in TiO₂ Porous Structures in Dye-Sensitized Solar Cells

Development of Three-Dimensional Porous Structure Simulator POCO2 for Simulations of Irregular Porous Materials

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Cited by 2 publications

References 8 publications

Simulation of Electron Diffusion in TiO2 Porous Structures in Dye-Sensitized Solar Cells

Simulation of Electron Diffusion in TiO2 Porous Structures in Dye-Sensitized Solar Cells

Development of Three-Dimensional Porous Structure Simulator POCO2 for Simulations of Irregular Porous Materials

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Product

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Simulation of Electron Diffusion in TiO₂ Porous Structures in Dye-Sensitized Solar Cells

Simulation of Electron Diffusion in TiO₂ Porous Structures in Dye-Sensitized Solar Cells