A Novel Oxynitride Phosphor Sr3-2ySiO5-6xN4x: yCe3+, yLi+ for White LED

Ning Jia Fu; Ke Hui Qiu; Xue Guang Lu; Kun Zhao; Yu Tao Li

doi:10.4028/www.scientific.net/AMR.898.76

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 898A Novel Oxynitride Phosphor Sr3-2ySiO5-6xN4x:...

A Novel Oxynitride Phosphor Sr_3-2ySiO_5-6xN_4x: yCe³⁺, yLi⁺ for White LED

Abstract:

In this paper, a novel yellow-emitting oxynitride phosphor Sr_3-2xSiO_5-6xN_4x: yCe³⁺, yLi⁺ (0 x 0.33, 0.01 y 0.04) has been reported. The XRD patterns illustrate that the partial substitution of (SiN)⁺ for the (SiO)²⁺ is feasible and the major phase of synthesized samples is isostructural with Sr₃SiO₅. Under blue light excitation, the oxynitride phosphor shows a broad emission about 557 nm, contributing to the 4f5d transition. The PL intensities show a blue shift as the increase of nitrogen content (the locations of peaks move from 559 nm to 549 nm).

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Periodical:

Advanced Materials Research (Volume 898)

Pages:

76-79

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.898.76

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Online since:

February 2014

Authors:

Ning Jia Fu*, Ke Hui Qiu, Xue Guang Lu, Kun Zhao, Yu Tao Li

Keywords:

Luminescence Property, Oxynitride Phosphor, Silicate, White LED

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