한국신재생에너지학회:학술대회논문집

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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Application of electron beam irradiation for studying the degradation of dye sensitized solar cells

전자선 조사를 통한 염료감응형 태양전지의 분해 연구

  • Akhtar, M.Shaheer (School of Environmental and Chemical Engineering, Chonbuk National University) ;
  • Lee, Hyun-Cheol (School of Environmental and Chemical Engineering, Chonbuk National University) ;
  • Min, Chun-Ji (School of Environmental and Chemical Engineering, Chonbuk National University) ;
  • Khan, M.A. (School of Environmental and Chemical Engineering, Chonbuk National University) ;
  • Kim, Ki-Ju (School of Environmental and Chemical Engineering, Chonbuk National University) ;
  • Yang, O-Bong (School of Environmental and Chemical Engineering, Chonbuk National University)
  • Published : 2006.06.22
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Abstract

The effect of electron beam irradiation on dye sensitized solar cell (DSSC) has been studied to examine degradation of DSSC. The high-energy electron beam irradiation affects on the materials and performance of dye sensitized solar cells. We have checked the effects of electron beam irradiation of $TiO_2$ substrate with and without dye adsorption on the photovoltaic performances of resulting DSSCS and also studied the structural and electrical properties of polymers after irradiation. All solar cells materials were irradiated by electron beams with an energy source of 2MeV at different dose rates of 60 kGy, 120 kGy 240 kGy and 900 kGy and then their photoelectrical parameters were measured at 1 sun $(100 mW/cm^2)$. It was shown that the efficiency of DSSC was decreased as increasing the dose of e-beam irradiation due to lowering in $TiO_2$ crystallinity, decomposition of dye and oxidation of FTO glasses. On the other hand, the performance of solid-state DSSC with polyethylene oxide based electrolyte was improved after irradiation of e-beam due to enhancement of its conductivity and breakage of crosslinking.

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