Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/20098
Título: | Eu3+-Based Bridged Silsesquioxanes for Transparent Luminescent Solar Concentrators |
Autor: | Freitas, Vania T. Fu, Lianshe Cojocariu, Ana M. Cattoen, Xavier Bartlett, John R. Le Parc, Rozenn Bantignies, Jean-Louis Man, Michel Wong Chi Andre, Paulo S. Ferreira, Rute A. S. Carlos, Luis D. |
Palavras-chave: | ORGANIC-INORGANIC MATERIALS HYBRID MATERIALS STRUCTURAL EVOLUTION LANTHANIDE COMPLEXES RECENT PROGRESS THIN-FILMS POLYSILSESQUIOXANES EUROPIUM(III) UV POLYCONDENSATION |
Data: | 2015 |
Editora: | AMER CHEMICAL SOC |
Resumo: | The sol-gel preparation of a bridged silsesquioxane containing europium(III) salts and 2-thenoyltrifluoroacetone has been achieved from a new ethane tetracarboxamide-based organosilane. Free-standing films with thicknesses up to 440 mu m and maximum absolute quantum yield (q) of 0.34 +/- 0.03 (excitation at 320 nm) were prepared by the drop cast method, while thin films (similar to 200-400 nm) spin-coated on glass substrates led to highly luminescent coatings with q = 0.60 +/- 0.02 (excitation at 345 nm). The thin films were tested as planar luminescent solar concentrators and the optimized device displays an optical conversion efficiency of 12.3% in the absorbing spectral region of the active layer (300-380 nm). |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/20098 |
DOI: | 10.1021/acsami.5b01281 |
ISSN: | 1944-8244 |
Versão do Editor: | 10.1021/acsami.5b01281 |
Aparece nas coleções: | CICECO - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Eu3+-Based Bridged Silsesquioxanes for Transparent Luminescent Solar Concentrators_10.1021acsami.5b01281.pdf | 1.8 MB | Adobe PDF |
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