摘要
为提高染料敏化太阳能电池中电解液的稳定性,对凝胶电解质进行了研究.以1,2-二1甲基-3-丙基咪唑碘(DMPII)作为I-源,以3-甲氧基丙腈作为溶剂,以偏四氟乙烯-六氟丙烯聚合物(P(VDF-HFP))作为胶凝剂,N-甲基苯并咪唑作为添加剂,制备了凝胶电解质.结果表明,随着电解质中DMPII量及碘量的增加,染料敏化太阳能电池的光电转化效率呈现先增大后降低的趋势.当P(VDF-HFP)的质量分数为5%、DMPII及I2的浓度分别为0.8 mol/L及0.04 mol/L时,制备的凝胶电解质染料敏化太阳能电池光电转化效率最高,在100 mW/cm2的模拟太阳光照射下取得开路电压0.703 V,短路电流密度11.81 mA/cm2,填充因子0.618,总的光电转换效率5.13%.
To improve the stability of electrolyte for dye-sensitized solar cells,the gel polymer electrolyte was studied.Poly（vinylidenefluoride-co-hexafluiripripylene）（P（VDF-HFP）） was employed to solidify 3-methoxypropionitrile based liquid electrolytes containing 1,2-dimethyl-3-propylimidazolium iodide（DMPII） and 1-methylbenzimidazole as iodide resource and addition respectively.The results showed that the ionic conductivity decreased with the increasing of P（VDF-HFP）,and the conversion efficiency of the dye-sensitized solar cell increased first,and then deceased with the increase of DMPII and I2.When ionic electrolyte composed of 0.8 mol/L DMPII,0.04 mol/L I2,0.1mol/LLiI,0.2 mol/L 1-methylbenzimidazole and 5% P（VDF-HFP） a short circuit photocurrent density of 11.81 mA/cm2,an open circuit voltage of 0.703 V,a fill factor of 0.618 and an overall conversion efficiency of 5.13% under AM irradiation（100 mW/cm2） were observed.
出处
《材料科学与工艺》
CAS
CSCD
北大核心
2011年第1期95-98,共4页
Materials Science and Technology
基金
国家自然科学基金资助项目(50702018,51078101)
表面工程技术国家级重点实验室基金资助项目(9140C5401040702)
新世纪优秀人才计划资助项目(NCET-09-0064)
黑龙江省自然科学基金资助项目(B2007-04)
