Eu3+-Based Bridged Silsesquioxanes for Transparent Luminescent Solar Concentrators

…, M Wong Chi Man, PS André…

Index: Graffion, Julien; Cattoen, Xavier; Wong Chi Man, Michel; Fernandes, Vasco R.; Andre, Paulo S.; Ferreira, Rute A. S.; Carlos, Luis D. Chemistry of Materials, 2011 , vol. 23, # 21 p. 4773 - 4782

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Citation Number: 16

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 μm 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 (∼ 200–400 nm) spin-coated on glass substrates led to highly ...