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Enhanced Dispersion of High Performance Dye-sensitized Solar Cells

분산특성이 향상된 고효율 염료감응형 태양전지

  • 김은미 (전남대학교 전기공학과) ;
  • 박경희 (전남대학교 전기공학과) ;
  • 구할본 (전남대학교 전기공학과) ;
  • 박복기 (호원대학교 전기정보통신공학과)
  • Published : 2009.06.01

Abstract

$TiO_2$ nano-particle paste was prepared by ethyl cellulose, $\alpha$-terpineol and bis(2-ethylhexyl) phthalate (dioxcyl phthalate) for dye-sensitized solar cells (DSSCs). Dispersion and absorbance of $TiO_2$ photoanode films was controlled by adding different amount of ethyl cellulose and $\alpha$-terpineol. The morphology of prepared $TiO_2$ films was studied by field emission scanning electron microscopy (FE-SEM) and the optical properties of $TiO_2$ films were measured by UV/vis spectra. Photovoltaic-current density was observed to determine the electrochemical response of DSSCs. Energy conversion efficiency was obtained about 7.1% at ethyl cellulose and $\alpha$-terpineol at optimal mixed ratio (as ethyl cellulose: 0.1 g; $\alpha$-terpineol: 1.5 ml) under illumination with AM 1.5($100\;Wcm^{-2}$) simulated sunlight.

Keywords

References

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