Ionic liquid-tethered nanoparticle/poly(ionic liquid) electrolytes for quasi-solid-state dye-sensitized solar cells

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• 作者：Xiaojian Chen^a ; ¹ ; Qing Li^a ; ¹ ; Jie Zhao^a ; Lihua Qiu^a ; Yueguang Zhang^a ; Baoquan Sun^b ; Feng Yan^a ; ^{fyan@suda.edu.cn}
• 关键词：Quasi-solid-state ; Dye-sensitized solar cells ; Ionic liquid-tethered nanoparticle ; Poly(ionic liquids) ; Nanocomposite
• 刊名：Journal of Power Sources
• 出版年：2012
• 期刊代码：58_03787753
• 类别：ce
• 出版时间：1 June, 2012
• 卷：207
• 期：Complete
• 页码：216-221
• 文件大小：561 K

摘要

Ionic liquid-tethered TiO₂ nanoparticles are prepared by tethering 1-methyl-3-[(triethoxysilyl)propyl]imidazolium chloride (TMICl) to TiO₂ nanoparticles. The quasi-solid-state dye-sensitized solar cells containing 15 wt%of ionic liquid-tethered nanoparticle/poly(ionic liquid) hybrid electrolytes show an overall power conversion efficiency of 鈭?.67%under simulated AM 1.5 solar spectrum irradiation at 50 mW cm^鈭?. Compared with unmodified TiO₂ nanoparticles, ionic liquid-tethered nanoparticle based hybrid gel electrolytes show enhanced short circuit current density (J_sc), open circuit voltage (V_oc), photoelectric conversion efficiency (畏), and better long-term stability of the devices. These results indicate that the cells based on ionic liquid-tethered nanoparticle hybrid electrolytes could overcome the drawbacks of volatile liquid electrolytes, and offer a feasible method to fabricate quasi-solid-state DSSCs in future practical applications.