[논문]Photoelectrochemical Properties of <tex> $TiO_2$</tex> Electrodes Prepared Using Chemical Functionalized Binders

Song, Yongwhan; Kim, Sangki; Yang, Jaechang; Park, Junho; Kim, Myoungsoo; Gu, Halbon; Park, Kyunghee

[국내논문] Photoelectrochemical Properties of $TiO_2$ Electrodes Prepared Using Chemical Functionalized Binders 원문보기

Song, Yongwhan ((주)링크라인아이엔씨) , Kim, Sangki ((주)링크라인아이엔씨) , Yang, Jaechang ((주)링크라인아이엔씨) , Park, Junho ((주)링크라인아이엔씨) , Kim, Myoungsoo ((주)링크라인아이엔씨) , Gu, Halbon (전남대학교) , Park, Kyunghee (전남대학교)

Chemically functionalized plant oils such as acrylated epoxidized soybean oil (AESO) and maleinized acrylated epoxidized soybean oil (MAESO) were used as new bio-based binders for $TiO_2$ electrodes of dye-sensitized solar cells (DSSC). More porous networks and larger porosities were fabricated on the $TiO_2$ films using plant oil binders due to the larger number of functionalities, in comparison with the film using polyethylene glycol (PEG). The charge-transfer resistance in the $TiO_2$ films was considerably shrunk due to the reduced impurity states. The short circuit photocurrent (Isc) and the open circuit photovoltage (Voc) of the cell using plant oil binders increased and the conversion efficiency improved significantly.

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이론/모형

p>A TiO₂ films in dye-sensitized solar cells was fabricated using TiO₂ colloidal sol prepared from titanium iso-propoxideused as a starting material by applying the sol-gel method. It was characterized by particle size analyzer, XRD, FE-SEM,and BET analysis.
The adsorption kinetics of dye molecule on TiO₂ films were obtained atthree different temperatures (30, 45, 60℃). The adsorption experimental data were correlated with Langmuir isothermmodel and pseudo-second-order model. Also the isosteric enthalpies of dye adsorption were calculated by theClausius-Clapeyron equation.
The adsorption experimental data were correlated with Langmuir isothermmodel and pseudo-second-order model. Also the isosteric enthalpies of dye adsorption were calculated by theClausius-Clapeyron equation. In addition, the adsorption energy distribution functions which describe heterogeneouscharacteristics of nanocrystalline TiO₂ film surface were calculated by using the generalized nonlinear regularizationmethod.
Also the isosteric enthalpies of dye adsorption were calculated by theClausius-Clapeyron equation. In addition, the adsorption energy distribution functions which describe heterogeneouscharacteristics of nanocrystalline TiO₂ film surface were calculated by using the generalized nonlinear regularizationmethod. We found that efficient adsorption of N719 dye from aqueous solution onto TiO₂ films can be successfullyachieved by dye adsorption conditions and morphology of TiO₂films.

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[국내논문] Photoelectrochemical Properties of $TiO_2$ Electrodes Prepared Using Chemical Functionalized Binders 원문보기

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[국내논문] Photoelectrochemical Properties of $TiO_2$ Electrodes Prepared Using Chemical Functionalized Binders 원문보기

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