Luminescence Properties of (MxMg1-x)2SiO4:Dy3+, Eu3+ (M=Ca, Sr, Ba)

Da Wei He; Xin Rong Zhou; Yong Sheng Wang

doi:10.4028/www.scientific.net/AMR.105-106.827

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 105-106Luminescence Properties of (MxMg1-x)2SiO4:Dy3+,...

Luminescence Properties of (M_xMg_1-x)₂SiO₄:Dy³⁺, Eu³⁺ (M=Ca, Sr, Ba)

Abstract:

A series of phosphor of (MxMg1-x)2SiO4: Dy3+, Eu3+ (M=Ca, Sr, Ba) were synthesized by high temperature solid-state reaction method and studied. The structure and emission spectrum excited by near violet light were investigated. The excitation spectra of single-doped (MxMg1-x)2SiO4: Dy3+ show strong absorption near 322nm, 347nm, 362nm and 391nm due to 6H15/2→4I9/2, 6H15/2→6P5/2, 6H15/2→4F7/2, 6H15/2→4G11/2 transition of Dy3+. The emission light is at about 469nm, 474nm, 483nm and 494nm under 391nm UV excitation. In order to obtain white light emission, (MxMg1-x)2SiO4: Dy3+, Eu3+ (M=Ca, Sr, Ba) were prepared to enhance the red light emission.

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Advanced Materials Research (Volumes 105-106)

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827-829

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https://doi.org/10.4028/www.scientific.net/AMR.105-106.827

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Online since:

April 2010

Authors:

Da Wei He, Xin Rong Zhou, Yong Sheng Wang

Keywords:

Emission Spectra, Luminescent Characteristic, White LEDs

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