Dye-Sensitized Solar Cells Based on a Natural Low Cost Halochromic Sensitizer
| Autor: | Michael Ibrahim, Umit B. Demirci, Georges El Haj Moussa, Maria Bassil, Mario El Tahchi, Philippe Miele |
|---|---|
| Přispěvatelé: | Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), LABORATOIRE DE PHYSIQUE APPLIQUEE, Groupe des Biomatériaux et des Matériaux Intelligents (LPA-GBMI), UNIVERSITE LIBANAISE Faculté de Sciences II, Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Materials science
02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy chemistry.chemical_compound food [CHIM]Chemical Sciences Absorption (electromagnetic radiation) Spectroscopy ComputingMilieux_MISCELLANEOUS Red cabbage business.industry Photovoltaic system 021001 nanoscience & nanotechnology food.food 0104 chemical sciences Dye-sensitized solar cell chemistry Chemical engineering Anthocyanin Titanium dioxide Optoelectronics Particle 0210 nano-technology business |
| Zdroj: | MRS Online Proceedings Library Archive MRS Online Proceedings Library Archive, Cambridge University Press, 2011, 1286, ⟨10.1557/opl.2011.11⟩ |
| ISSN: | 1946-4274 |
| Popis: | Since their re-introduction as new generation solar cells in 1991, dye-sensitized solar cells (DSSCs) have been studied extensively to improve their efficiency and their stability. Few papers have reported the usage of natural dyes in the fabrication of DSSCs. We are most interested in these dyes being easy to extract, low cost and with tunable absorption. For example, Anthocyanin is extracted from red cabbage and is present in a multitude of colors ranging from red to yellow to violet according to the pH. In this study, two industrial types of titanium dioxide powders, the Degussa P 25 and the Crystal 128 with different particle sizes 21 and 200 nm respectively, were used to prepare DSSCs. The dye used is anthocyanin and its color is varied by varying the pH of the medium. The pH effect on the light absorption of anthocyanin in the visible range and the optical properties of titanium dioxide dyed with anthocyanin and coumarin 102 are investigated using UV-Vis spectroscopy. The open-circuit voltage of all the samples is tested and it if found out that it is dependant on the dye color. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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