物理化学学报 >> 2012, Vol. 28 >> Issue (03): 585-590.doi: 10.3866/PKU.WHXB201112302

电化学和新能源 上一篇    下一篇

染料敏化太阳能电池用琼脂糖基磁性聚合物电解质的电化学性能

郭学益, 易鹏飞, 王惟嘉, 杨英   

  1. 中南大学冶金科学与工程学院, 长沙 410083
  • 收稿日期:2011-09-15 修回日期:2011-12-12 发布日期:2012-02-23
  • 通讯作者: 杨英 E-mail:muyicaoyang@hotmail.com
  • 基金资助:

    国家自然科学基金(61006047)资助项目

Electrochemical Properties of an Agarose-Based Magnetic Polymer Electrolyte in Dye-Sensitized Solar Cells

GUO Xue-Yi, YI Peng-Fei, WANG Wei-Jia, YANG Ying   

  1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, P. R. China
  • Received:2011-09-15 Revised:2011-12-12 Published:2012-02-23
  • Contact: YANG Ying E-mail:muyicaoyang@hotmail.com
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (61006047).

摘要: 以琼脂糖为聚合物基质, N-甲基吡咯烷酮为溶剂, 磁性纳米粒子四氧化三铁为无机纳米颗粒添加剂制备了用于染料敏化太阳能电池(DSSC)的磁性聚合物电解质. 通过研究不同小分子表面活性剂, 聚乙二醇(PEG200)、曲拉通(Triton X-100)、乙酰丙酮和三者混合的表面活性剂对掺杂有1% (w) Fe3O4的磁性聚合物电解质离子电导率的影响, 发现PEG200的加入可有效提高琼脂糖基磁性聚合物电解质的离子电导率. 同时, 对不同PEG200浓度添加下的电解质进行离子电导率测试研究发现: 当PEG200加入量为61.8% (w)时, 电解质具有最佳的离子电导率(2.88×10-3 S·cm-1); 对染料敏化太阳能电池进行电化学交流阻抗谱(EIS)测试的结果表明: 染料敏化太阳能电池的电子寿命和复合电阻随着PEG200浓度的增加是先增大后减小, 最大的电子寿命和复合电阻出现在PEG200浓度为68.3% (w)处.

关键词: 磁性聚合物电解质, 琼脂糖, 纳米Fe3O4, PEG200, 染料敏化太阳能电池

Abstract: In order to enhance the dispersion of Fe3O4 nanoparticles in polymer electrolytes for dyesensitized solar cell (DSSC) applications, the ionic conductivity of the polymer electrolytes with different small molecular surfactants was studied. The surfactants used were polyethylene glycol (PEG200), Triton X-100, acetyl acetone, and mixture of these three active agents at 1%(w) doping concentration of Fe3O4 nanoparticles in electrolyte. Comparison of the electrochemical properties of Fe3O4-doped polymer electrolytes containing different surfactants showed that PEG200 was suitable for modifying Fe3O4 nanoparticles to disperse in agarose-based polymer electrolytes. When the mass fraction of PEG200 was 61.8%(w), the electrolyte had excellent conductivity (2.88×10-3 S·cm-1). Electrochemical impedance spectra (EIS) revealed that when the concentration of PEG200 increased, the electron lifetime and combination resistance of a dye-sensitized solar cell increase initially and then decreasd. The longest electron lifetime and the largest combination resistance were achieved when the concentration of PEG200 was 68.3%(w).

Key words: Magnetical polymer electrolyte, Agarose, Nano-Fe3O4, PEG200, Dye-sensitized solar cell

MSC2000: 

  • O646