Effects of surfactants on agarose-based magnetic polymer electrolyte for dye-sensitized solar cells

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• 作者：Xueyi Guo^a ; Pengfei Yi^a ; Ying Yang^a ; ^{muyicaoyang@mail.csu.edu.cn} ; Jiarui Cui^a ; Si Xiao^b ; Wenyong Wang^c ; ^{wwang5@uwyo.edu}
• 关键词：Magnetic polymer electrolyte ; Fe3O4 nanoparticles ; Polysorbate 80 ; Dye-sensitized solar cell
• 刊名：Electrochimica Acta
• 出版年：2013
• 出版时间：15 February, 2013
• 年：2013
• 卷：90
• 期：Complete
• 页码：524-529
• 全文大小：786 K

文摘

Four surfactants, sodium dodecyl sulfate (SDS), polyvinylpyrrolidone (PVP), polyethylene glycol (PEG₂₀₀) and polysorbate 80 (TW-80), were added to disperse Fe₃O₄ nanoparticles in agarose based magnetic polymer electrolyte, for the purpose of improving the performance of dye-sensitized solar cell (DSSC). Fourier transform infrared spectroscopy (FTIR) was employed to characterize the interactions between surfactants and magnetic polymer electrolyte. TW-80 and PEG₂₀₀ showed good dispersion properties according to surface morphology tests. Through electrochemical impedance spectroscopy (EIS) study, the ionic conductivity, charge transfer resistance, charge recombination resistance and electron lifetime of polymer electrolytes were all improved by modification, while TW-80 modified electrolyte reached the highest ionic conductivity of 2.98 ¡Á 10^?3 S/cm. Moreover, the photoelectric properties were also significantly enhanced and the best energy conversion efficiency achieved 1.83 % with TW-80 modification.