Film based on Y2O3: Eu3+ (5 mol% of Eu3+) for flat panel display

Author(s)

Ferrari, J. L. ^[1] ; Schiavon, M. A. ^[1] ; Goncalves, R. R. ^[2] ; Pires, A. M. ^[3] ; Davolos, M. R. ^[4]

Affiliation

^[1] Univ Fed Sao Joao Rei, Dept Ciencias Nat, Lab Mat Fotoluminescentes & Polimeros Biodegradav, GPQM, Sao Joao Del Rei, MG - Brazil

^[2] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Quim, BR-14040901 Ribeirao Preto, SP - Brazil

^[3] Unesp Univ Estadual Paulista, Fac Ciencias & Tecnol, Dept Fis Quim & Biol, BR-19060900 Presidente Prudente, SP - Brazil

^[4] Unesp Univ Estadual Paulista, Inst Quim, BR-14800970 Araraquara, SP - Brazil

• Document type: Journal article
• Source: Thin Solid Films; v. 524, p. 299-303, DEC 1 2012.
• Web of Science Citations: 10

Abstract

This paper reports on Y2O3:Eu3+ containing 1 mol% of Ag-0 nanoparticle films recovered with a SiO2 layer by using glass foil as a substrate for a possible optical display device application. The obtained film showed an intense emission at 612 nm due to the Eu3+ 5D0 -> F-7(2) hypersensitive transition, a high transmittance in that emission range, an excellent optical quality, and a high absorption only below 300 nm. Moreover, despite the presence of the SiO2 layer used to improve the phosphor adhesion on Corning (R) foil substrates, the intensity ratios between the emissions assigned to Eu3+ D-5(0) -> F-7(2) (dipole electric transition) and D-5(0) -> F-7(1) (dipole magnetic transition) were not affected by it. The x and y coordinate values found in the 1931 Commission Internationale de l'Eclairage Chromaticity Diagram for this film reveal that it has a suitable pure red color emission for optical displays devices. (C) 2012 Elsevier B. V. All rights reserved. (AU)