Luminescent PEO Coatings on Aluminum. (1st January 2016)

• Record Type: Journal Article
• Authors: Zolotarjovs, Aleksejs; Smits, Krisjanis; Krumina, Anete; Millers, Donats; Grigorjeva, Larisa
• Is Part Of: ECS journal of solid state science and technology. Volume 5:Number 9(2016)
• Page Start: R150
• Page End: R153
• Publication Date: 2016-01-01
• Subjects: alumina -- Eu luminescence -- luminescent coating -- PEO -- Plasma Electrolytic Oxidation -- pore filling; Solid state chemistry -- Periodicals; Electronics -- Materials -- Periodicals; Electrochemistry -- Periodicals; 541.0421
• DOI: 10.1149/2.0401609jss
• Languages: English
• ISSNs: 2162-8777

Abstract

Abstract : Results show the possibilities of pore filling approach to modify alumina coatings with various materials in order to enhance coating optical (or other) properties and develop new functional materials; as well as demonstrate novel alumina phase transition detection approach. Luminescent PEO coatings were produced on aluminum surface using pore-filling method. Three stage process was developed to modify alumina coating in order to enhance its luminescent properties. Eu 3+ recharging to Eu 2+ followed by significant (up to 10 times) total luminescence intensity increase was observed, Eu ion presence evaluated in final coating by measuring fast decay kinetics. Structure of obtained coatings was analyzed using XRD and FTIR spectroscopy indicating presence of η-alumina phase.