Influence of Molecular Weight of PEO on Performance of Quasi-solid-state Dye-sensitized Solar Cells
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2010年第2期
论文作者：沈小林
文章页码：218 - 222
摘 要：Quasi-solid-state dye-sensitized solar cells （DSCs） were prepared using gel electrolyte gelated by poly（ethylene-oxide） （PEO） with different molecular weight. With the increase in PEO molecular weight, the short circuit current densities （Jsc） increase significantly, which is related to the increase in I - diffusion due to the increase in free volume of gel electrolyte. However, only a slight increase in open voltage （Voc） is observed, which is explained by the decrease in dark current arising from the reduction of triiodide （I3-） by conduction band electrons.
沈小林
School of Materials Science & Engineering, Xi’an Jiaotong University
摘 要：Quasi-solid-state dye-sensitized solar cells （DSCs） were prepared using gel electrolyte gelated by poly（ethylene-oxide） （PEO） with different molecular weight. With the increase in PEO molecular weight, the short circuit current densities （Jsc） increase significantly, which is related to the increase in I - diffusion due to the increase in free volume of gel electrolyte. However, only a slight increase in open voltage （Voc） is observed, which is explained by the decrease in dark current arising from the reduction of triiodide （I3-） by conduction band electrons.
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