Bis-imidazolium based poly(ionic liquid) electrolytes for quasi-solid-state dye-sensitized solar cells

Autor:	Xiaoyuan Han, Baoquan Sun, Gaohui Fu, Xiaojian Chen, Lihua Qiu, Jinyu Zhang, Ye Zhang, Jie Zhao, Haigang Zhang, Dan Xu, Feng Yan
Rok vydání:	2012
Předmět:	Materials science Inorganic chemistry Energy conversion efficiency General Chemistry Electrolyte Conductivity Dye-sensitized solar cell chemistry.chemical_compound Chemical engineering chemistry Ionic liquid Materials Chemistry Thermal stability Quasi-solid Imide
Zdroj:	Journal of Materials Chemistry. 22:18018
ISSN:	1364-5501 0959-9428
Popis:	Bis-imidazolium based poly(ionic liquid), poly(1-butyl-3-(1-vinylimidazolium-3-hexyl)-imidazolium bis(trifluoromethanesulfonyl)imide) (Poly[BVIm][HIm][TFSI]) and mono-imidazolium based poly(ionic liquid), poly(1-butyl-3-vinylimidazolium bis(trifluoromethanesulfonyl)imide) (Poly[BVIm][TFSI]), were synthesized and dissolved in room temperature ionic liquids (ILs) to form quasi-solid-state electrolytes for dye-sensitized solar cells (DSSCs), without using any volatile organic solvent. Compared with mono-imidazolium based poly[BVIm][TFSI], bis-imidazolium based poly[BVIm][HIm][TFSI] electrolytes showed a higher thermal stability and conductivity due to the charge transport networks formed in the gel electrolytes via the π–π stacked imidazolium rings. The DSSCs based on the poly[BVIm][HIm][TFSI] gel electrolyte showed a superior long-term stability and yielded a power conversion efficiency of 5.92% under the simulated air mass 1.5 solar spectrum illumination at 100 mW cm−2. This study offered a feasible method to fabricate quasi-solid-state DSSCs in future practical applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9180f7a59014a206bd63949c31e9b52b https://doi.org/10.1039/c2jm33273f Zobrazit plný text záznamu