Improvement of the efficiency of dye-sensitized solar cells with fluorinated carbon-based liquid crystal dopant
| Autor: | Chi-Yen Huang, Forest Shih-Sen Chien, Bi Cheng Lei, Chen Shiung Chang, Fang Cheng Yu, Chang Feng You, Cheng-En Cheng, Jia Cih Jhang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Dopant Energy conversion efficiency Doping General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Viscosity Dye-sensitized solar cell chemistry Chemical engineering Liquid crystal 0210 nano-technology Carbon |
| Zdroj: | Chinese Journal of Physics. 55:1189-1194 |
| ISSN: | 0577-9073 |
| DOI: | 10.1016/j.cjph.2017.05.028 |
| Popis: | The long-term stability of dye-sensitized solar cells (DSSCs) can be improved using a liquid crystal (LC) dopant. However, the high viscosity of the LC dopant reduces the power conversion efficiency (PCE) of these cells. In this study, low-viscosity LC is doped into the DSSCs. The results indicate that the polar fluoro groups of the LCs effectively interact with the cyano groups of the organic solvent in the liquid electrolyte, enhancing the long-term stability of the DSSCs. The viscosity of the LC dopant is a key factor that affects the light–to–electrical energy conversion efficiency of the LC-doped DSSCs. The short-current density and related PCE of the DSSCs is not reduced because of the low viscosity of the doped fluorinated carbon-based LCs. |
| Databáze: | OpenAIRE |
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