Sulfide-Based Ionic Liquid Electrolyte Widening the Application Temperature Range of Quantum-Dot-Sensitized Solar Cells
| Autor: | Jifu Shi, Xue-Qing Xu, sup> 中国科学院广州能源研究所, 中国科学院可再生能源与天然气水合物重点实验室, 广东省新能源和可再生能源重点实验室, 广州 ,, Gang Xu, Chun-Sheng Li, 中国科学院大学，北京, Qing-Cui Wan, sup> 华北理工大学化工学院, 河北唐山 ,, Qi-Zhang Huang |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Materials science Sulfide 02 engineering and technology Electrolyte Conductivity Atmospheric temperature range 021001 nanoscience & nanotechnology 01 natural sciences law.invention Condensed Matter::Soft Condensed Matter chemistry.chemical_compound Differential scanning calorimetry chemistry Chemical engineering law 0103 physical sciences Solar cell Ionic liquid Physics::Chemical Physics Physical and Theoretical Chemistry 010306 general physics 0210 nano-technology Glass transition |
| Zdroj: | Acta Physico-Chimica Sinica. 32:822-827 |
| ISSN: | 1000-6818 |
| DOI: | 10.3866/pku.whxb201602262 |
| Popis: | We report the preparation and application of a 1-methyl-3-propylimidazolium sulfide-based ionic liquid electrolyte for quantum-dot-sensitized solar cells. By optimizing the concentrations of S and Na2S, a considerable conductivity of 12.96 mS.cm(-1) is achieved at 25 degrees C. Differential scanning calorimetry indicates that the glass transition temperature of the electrolyte is -85 degrees C. The quantum-dot-sensitized solar cell assembled with this ionic liquid electrolyte displays a high energy conversion efficiency (eta) of 3.03% at 25 C, which is comparable to the efficiency of quantum-dot-sensitized solar cells using a water-based polysulfide electrolyte (q = 3.34%). Due to the favorable thermal properties of this ionic liquid electrolyte (lower glass transition temperature and nonvolatility at higher temperatures), the quantum-dot-sensitized solar cell maintains satisfactory eta even at -20 degrees C (eta = 2.32%) and 80 degrees C (eta = 1.90%), which is superior to the cell using the water based polysulfide electrolyte. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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