White light emission from single-phase Y2MoO6: xPr(3+) (x=1, 2, 3 and 4 mol%) phosphor

JOURNAL OF ALLOYS AND COMPOUNDS

2 de setembro de 2020 LAbI UFSCar Artigo 0

White light emission from single-phase Y2MoO6: xPr(3+) (x=1, 2, 3 and 4 mol%) phosphor

Abstract: A series of Pr3+ doped with Y2MoO6 was synthesized using the co-precipitation method and the structural, photoluminescent and morphological properties of XRD, scanning electron microscopy (SEM) and photoluminescence spectrometry were investigated. The most intense absorption of its host matrix occurred between 200 and 340 nm due to a charge transfer in O -> Mo. The photoluminescence emission results of Y2MoO6: x%Pr3+ particles showed some white emission due to a strong contribution of the matrix and the Pr3+ dopant. All samples exhibited high color rendering index (>90%), indicating that the light source can reproduce colors. It was possible to obtain a white-emitting single-phase luminescent material from an easy route of production. The investigation indicated that Y2MoO6: x%Pr3+ is a potential candidate for applications with white light emitting diodes. (C) 2018 Elsevier B.V. All rights reserved.

Author(s): Lovisa, LX; Santiago, AAG; Farias, MB; Barros, BS; Longo, E; Li, MS; Paskocimas, CA; Bomio, MRD; Motta, FV

JOURNAL OF ALLOYS AND COMPOUNDS

Volume: 769 Pages: 420-429 Published: NOV 15 2018

PDF: White light emission from single-phase Y2MoO6 xPr(3+) (x=1, 2, 3 and 4 mol%) phosphor

DOI: 10.1016/j.jallcom.2018.07.339

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O Laboratório Aberto de Interatividade para Disseminação do Conhecimento Científico e Tecnológico (LAbI), vinculado à Universidade Federal de São Carlos (UFSCar), é voltado à prática da divulgação científica pautada na interatividade; nas relações entre Ciência, Arte e Tecnologia.