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Application of Ionic Liquids with Carboxyl and Aromatic Ring Conjugated Anions in Dye-Sensitized Solar Cells
Wang Hai1,2; Xu Xue-Qing1; Shi Ji-Fu1; Xu Gang1
2013-03-01
发表期刊ACTA PHYSICO-CHIMICA SINICA
卷号29期号:3页码:525-532
摘要A method of utilizing p-pi conjugation effects for obtaining low-viscosity ionic liquids is presented. p-pi conjugation effectively disperses anionic charge and reduces Coulombic interactions. Ionic liquids prepared in this study were 1-ethyl-3-methylimidazolium benzoate (EMIB) and 1-ethyl-3-methylimidazolium isonicotinate (EMIIN). They have carboxyl and aromatic ring p-pi conjugated anions, and achieve low viscosities of 42 and 27 mPa . s, respectively. EMIB and EMIIN were employed as electrolytes, which were used to construct dye-sensitized solar cells (DSCs). After optimizing the composition, the ionic conductivity and triiodide ionic diffusion constant for the EMIB-based electrolyte were 1.43 mS . cm(-1) and 1.45 x 10(-7) cm(2) . s(-1), respectively. For the EMIIN-based electrolyte, the ionic conductivity and triiodide ionic diffusion constant were 1.63 mS . cm(-1) and 2.01x10(-7) cm(2) . s(-1), respectively. These were higher than the corresponding values for the EMIB-based electrolyte because of EMIIN's lower viscosity. DSCs based on these two electrolytes attained satisfactory energy conversion efficiencies of 2.85% and 4.30% for EMIB and EMIIN, respectively, under an illumination intensity of 300 W . m(-2).
文章类型Article
关键词Ionic Liquid Viscosity Electrolyte Conductivity Dye-sensitized Solar Cell
WOS标题词Science & Technology ; Physical Sciences
DOI10.3866/PKU.WHXB201301091
研究领域[WOS]Chemistry
关键词[WOS]TEMPERATURE MOLTEN-SALTS ; PHOTOVOLTAIC PERFORMANCE ; ORGANIC-DYES ; ELECTROLYTE ; EFFICIENCY ; CONVERSION ; IODIDE ; POWER
收录类别SCI
语种英语
WOS类目Chemistry, Physical
WOS记录号WOS:000315584400011
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/9141
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位中国科学院广州能源研究所
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Wang Hai,Xu Xue-Qing,Shi Ji-Fu,et al. Application of Ionic Liquids with Carboxyl and Aromatic Ring Conjugated Anions in Dye-Sensitized Solar Cells[J]. ACTA PHYSICO-CHIMICA SINICA,2013,29(3):525-532.
APA Wang Hai,Xu Xue-Qing,Shi Ji-Fu,&Xu Gang.(2013).Application of Ionic Liquids with Carboxyl and Aromatic Ring Conjugated Anions in Dye-Sensitized Solar Cells.ACTA PHYSICO-CHIMICA SINICA,29(3),525-532.
MLA Wang Hai,et al."Application of Ionic Liquids with Carboxyl and Aromatic Ring Conjugated Anions in Dye-Sensitized Solar Cells".ACTA PHYSICO-CHIMICA SINICA 29.3(2013):525-532.
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