Influence of solvents on Aloe vera gel performance in dye-sensitized solar cells
| Autor: | Andrea Ehrmann, Katrin Gossen, Jan Lukas Storck |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Silicon biology Extraction (chemistry) chemistry.chemical_element 02 engineering and technology Vis spectra 021001 nanoscience & nanotechnology biology.organism_classification 01 natural sciences Atomic and Molecular Physics and Optics Aloe vera Electronic Optical and Magnetic Materials 010309 optics Solvent Dye-sensitized solar cell Chemical engineering chemistry 0103 physical sciences Electrical and Electronic Engineering 0210 nano-technology |
| Zdroj: | Fachhochschule (FH) Bielefeld |
| ISSN: | 0030-4026 |
| DOI: | 10.1016/j.ijleo.2018.11.163 |
| Popis: | Dye-sensitized solar cells (DSSCs) can be prepared from non-toxic, low-cost materials outside a cleanroom, opposite to common silicon-based cells. Especially for large areas, such as textile architecture, they can be used due to the aforementioned advantages. On the other hand, their efficiencies are very low if no specialized dyes – which are typically toxic and expensive – are used. This is why a broad variety of natural dyes has been investigated during the past decades. Here we report on aloe vera gel extracts, prepared with different solvents, as sensitizers for DSSCs. We show the dependence of the UV/Vis spectra on the solvents as well as the time-dependent electrical properties of the resulting DSSCs. Our results underline the influence of the solvent on the dye extraction and the corresponding DSSC efficiencies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect