Title: Electrodeposition of luminescent composite metal coatings containing rare-earth phosphor particles
Authors: Ganapathi, Murugan
Eliseeva, Svetlana V
Brooks, Neil
Soccol, Dimitri
Fransaer, Jan
Binnemans, Koen # ×
Issue Date: 2012
Publisher: Royal Society of Chemistry
Series Title: Journal of Materials Chemistry vol:22 issue:12 pages:5514-5522
Abstract: Mixtures of acetamide and dimethylsulfone (DMSO2) with dissolved anhydrous transition metal chlorides are introduced as new non-aqueous electrolytes for the preparation of composite metal coatings with embedded hydrophilic particles via an electrolytic co-deposition process. Red-emitting (Eu2O3 and Y2O3:Eu3+), yellow-emitting (Y3Al5O12:Ce3+), green-emitting (Gd2O2S:Tb3+) and blue-emitting (BaMg2Al16O27:Eu2+) rare-earth phosphor particles and yttrium oxide particles have been embedded into thin nickel and cobalt layers. The metal coatings with the rare-earth phosphor particles have a metallic lustre, but show at the same time photoluminescence upon irradiation with UV light. The spectroscopic and photophysical properties of the rare-earth phosphors are not modified by embedding them in the metallic host matrix. Different electrodeposition parameters were optimised in order to obtain well-adherent coatings with a uniform particle distribution. By preparing mixtures of the Y2O3:Eu3+ and Gd2O2S:Tb3+ phosphors, the emission colour could be varied from red to orange and yellow to green, depending on the mixing ratios. Embedding mixtures of yellow and blue phosphors in the metal layer made it possible to produce coatings with white photoemission.
ISSN: 0959-9428
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

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BinnemansKoen Electrodeposition.pdfOA Article Published 809KbAdobe PDFView/Open


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