1-Alkenyl-3-methylimidazolium trifluoromethanesulfonate ionic liquids: novel and low-viscosity ionic liquid electrolytes for dye-sensitized solar cells.

Autor:	Nguyen PT; Department of Applied Inorganic Chemistry, Faculty of Chemistry, University of Sciences, Viet Nam National University Ho Chi Minh City 70000 Viet Nam ngtuyetphuong@gmail.com., Nguyen TN; Department of Applied Inorganic Chemistry, Faculty of Chemistry, University of Sciences, Viet Nam National University Ho Chi Minh City 70000 Viet Nam ngtuyetphuong@gmail.com., Nguyen VS; Department of Applied Inorganic Chemistry, Faculty of Chemistry, University of Sciences, Viet Nam National University Ho Chi Minh City 70000 Viet Nam ngtuyetphuong@gmail.com., Nguyen HT; Department of Organic Chemistry, Faculty of Chemistry, University of Sciences, Viet Nam National University Ho Chi Minh City 70000 Viet Nam thphuong@hcmus.edu.vn., Thi Ngo DK; Department of Organic Chemistry, Faculty of Chemistry, University of Sciences, Viet Nam National University Ho Chi Minh City 70000 Viet Nam thphuong@hcmus.edu.vn., Tran PH; Department of Organic Chemistry, Faculty of Chemistry, University of Sciences, Viet Nam National University Ho Chi Minh City 70000 Viet Nam thphuong@hcmus.edu.vn.
Jazyk:	angličtina
Zdroj:	RSC advances [RSC Adv] 2018 Apr 09; Vol. 8 (24), pp. 13142-13147. Date of Electronic Publication: 2018 Apr 09 (Print Publication: 2018).
DOI:	10.1039/c7ra12904a
Abstrakt:	Dye-sensitized Solar Cells (DSCs) based on ruthenium complex N719 as sensitizer have received much attention due to their affordability and high efficiency. However, their best performance is only achieved when using volatile organic solvents as electrolyte solutions, which are unstable under prolonged thermal stress. Thus, we developed a new series of 1-alkenyl-3-methylimidazolium trifluoromethanesulfonate ionic liquids used as robust DSC electrolytes. These ionic liquids exhibit low viscosity, high conductivity, and thermal stability. The implementation of 1-but-3-enyl-3-methyl-imidazolium trifluoromethanesulfonate, [ButMIm]OTf, into DSCs gave the best photovoltaic performance. The results are fairly comparable to those reports for other popular ionic liquid electrolytes currently used in DSC field. An insightful discussion on the relationship between the structure of these new ionic liquids and the J - V characterization as well as electrochemical impedance measurement of DSCs will give more interesting information. The results are useful for large-scale outdoor application of DSCs. Competing Interests: There are no conflicts to declare. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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