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Optical Properties of Ba2-XSrxSiO4: Eu2+, Dy3+ Phosphors and their Applications for White LED

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Abstract:

A series of Ba1.91-xSrxSiO4:Eu2+, Dy3+phosphors were synthesized by the high-temperature solid-state reaction. The structure of powder samples were characterized by X-ray powder diffraction. The photoluminescence emission and excitation spectra are also studied. It can be proved the formation of the solid solution of Ba1.91-xSrxSiO4:Eu2+, Dy3+ compounds, and the phosphors can be efficiently excited by UV-visible light from 300 to 480 nm. The as-synthesized Ba1.91-xSrxSiO4:Eu2+, Dy3+ phosphors are promising candidates applicable to near-UV and blue LEDs for solid-state lighting.

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Periodical:

Advanced Materials Research (Volume 529)

Pages:

154-158

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.529.154

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Online since:

June 2012

Authors:

Mei Zhang, Ping Wang, Xin He, Qing Guang Zeng, Jin Xiu Wen

Keywords:

Phosphor, Rare Earth (RE), Silicate, White LED

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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