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Home > City College > Dissertations and Theses > 625
Dissertations and Theses
Title
Author
Date of Award
2014
Document Type
Thesis
Department
Chemical Engineering
First Advisor
Ilona Kretzachmar
Keywords
solar cells, ionic liquid, inverse opal
Mac Os Mojave
Abstract
Naomi Mac Os X
Dye-sensitized solar cells (DSSC) are low-cost alternatives to conventional solar cells that can work well in low-light conditions. Despite considerable study on improving the efficiency of DSSCs, the current liquid electrolyte cell has plateaued at a conversion efficiency of ~ 12%. A major problem with these cells regarding their applicability is the low viscosity and high volatility of the toxic electrolyte, i.e., acetonitrile, which cause leakage and volatilization. We propose that using ionic liquids (ILs), which are more viscous, less volatile, and conductive, may be more suitable electrolytes. However, one unwanted side effect of the higher viscosity of the ILs may be an incomplete infiltration of the DSSC’s nanoporous TiO2 electrode. Here, we present a study of DSSCs with TiO2 inverse opal electrodes of controlled pore sizes (0.1-1 m) and ionic liquid derivatives of 1-alkyl-3-methylimidazolium tetrafluoroborate (alkyl: ethyl, butyl, and decyl) with viscosities ranging from 25.2 to 721 cP. The stability and functionality of the DSSCs is tested using electrochemical techniques that yield current-voltage and power curves.
Naomi Osaka Sponsors
Recommended Citation
Ramesar, Naomi S., 'Effect of Ionic Liquid Electrolytes in DSSCs with Titanium Dioxide (TiO2) Inverse Opal Structures' (2014). CUNY Academic Works.
https://academicworks.cuny.edu/cc_etds_theses/625
Naomi Osaka Japan
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Naomi Mac Os X
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