Structure and Luminescence of Ba₃MgSi₂O₈: Eu²⁺, Mn²⁺ Phosphors

Abstract:

In this paper, Ba₃MgSi₂O₈: Eu²⁺, Mn²⁺ phosphor was synthesized by the sol-gel method and high temperature solid-state reaction method. The structure and emission spectrum excited by near violet light were investigated. we studied the process of phase change in roasting and determined the approximate crystallization temperature of Ba₃MgSi₂O₈: Eu²⁺, Mn²⁺ phosphors. Our results demonstrate that 514 nm emission bands were from Eu²⁺ ions replacing of the sites of Ba²⁺ in Ba₂SiO₄. 440 nm emission bands originated from Eu2+ ions substituting the sites of Ba²⁺ in Ba₃MgSi₂O₈, corresponded to 4f⁶5d¹→4f⁷ transition of Eu2+ ions. 615 nm emission bands ascribed to Mn2+ ions taking place of the sites of Mg²⁺ ions, corresponded to 4T→6A red launch of Mn²⁺ ions.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 1016-1019
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.1016
• Online since: November 2011
• Authors: Yue Li, Da Wei He, Yong Sheng Wang, Fu Ming, Yang Wu, Feng Miao
• Keywords: Ba₃MgSi₂O₈, Eu²⁺, Mn²⁺, Phosphor, Silicate

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