Molecular engineering of ruthenium-diacetylide organometallic complexes towards efficient green dye for DSSC
| Autor: | Laurent Ducasse, Siliu Lyu, Thierry Toupance, Tomofumi Hamamura, Céline Olivier, Camille Bertrand |
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| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Band gap Ligand Process Chemistry and Technology General Chemical Engineering Energy conversion efficiency Iodide chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Acceptor 0104 chemical sciences Ruthenium Molecular engineering Dye-sensitized solar cell chemistry 0210 nano-technology |
| Zdroj: | Dyes and Pigments. 158:326-333 |
| ISSN: | 0143-7208 |
| DOI: | 10.1016/j.dyepig.2018.05.060 |
| Popis: | Three new dyes encompassing the organometallic [Ru(dppe)2] (dppe = 1,2-bis(diphenylphosphino)ethane) fragment were designed and prepared for application in dye-sensitized solar cells. Introduction of the strong electron-withdrawing benzothiadiazole (BTD) unit as an additional acceptor in the attracting ligand led to original D−[M]−A−π−A′ architectures. In particular the use of a thienyl-BTD motif led to a narrow bandgap sensitizer with deep-green coloration. The dye afforded 5.2% power conversion efficiency in TiO2-based DSSC device in the presence of the iodine/iodide couple as redox mediator. A joint experimental and theoretical study of the new dyes is reported. |
| Databáze: | OpenAIRE |
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