Thiocyanate ligands as crucial elements for regeneration and photo-degradation in TiO2|dye|CuI solar cells
Autor: | H Tributsch, Prasad Manjusr Sirimanne |
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Rok vydání: | 2006 |
Předmět: | |
Zdroj: | Materials Chemistry and Physics. 99:5-9 |
ISSN: | 0254-0584 |
DOI: | 10.1016/j.matchemphys.2005.05.049 |
Popis: | Size control of CuI grains and thus better-matched interfaces were observed in the presence of crystal growth inhibitors in the CuI coating solution for TiO2|dye|CuI solar cells. Evidence is given that these growth inhibitor molecules simultaneously act as an electron transfer mediator between the CuI and dye molecules via thiocyanate bridges. A reverse reaction of injected electrons from TiO2 nanoparticles electrochemically inactivates the thiocyanate electron transfer bridge in the illuminated cells causing photo-degradation. |
Databáze: | OpenAIRE |
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