Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/20098
Title: | Eu3+-Based Bridged Silsesquioxanes for Transparent Luminescent Solar Concentrators |
Author: | 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. |
Keywords: | ORGANIC-INORGANIC MATERIALS HYBRID MATERIALS STRUCTURAL EVOLUTION LANTHANIDE COMPLEXES RECENT PROGRESS THIN-FILMS POLYSILSESQUIOXANES EUROPIUM(III) UV POLYCONDENSATION |
Issue Date: | 2015 |
Publisher: | AMER CHEMICAL SOC |
Abstract: | 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 |
Publisher Version: | 10.1021/acsami.5b01281 |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Eu3+-Based Bridged Silsesquioxanes for Transparent Luminescent Solar Concentrators_10.1021acsami.5b01281.pdf | 1.8 MB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.