Abstract This paper synthesizes the Sr$_{2}$SiO$_{4}$:Eu$^{2 + }$ phosphor by high temperature solid-state reaction. The emission spectrum of Sr$_{2}$SiO$_{4}$:Eu$^{2 + }$ shows two bands centred at 480 and 547\,nm, which agree well with the calculation values of emission spectrum, and the location of yellow emission of Sr$_{2}$SiO$_{4}$:Eu$^{2 + }$ is influenced by the Eu$^{2 + }$ concentration. The excitation spectrum for 547 nm emission has two bands at 363 and 402 nm. The emission spectrum of white light emitting diodes (w-LEDs) based on Sr$_{2}$SiO$_{4}$:Eu$^{2 + }$ phosphor + InGaN LED was investigated.
Received: 12 July 2007
Revised: 19 July 2007
Accepted manuscript online:
PACS:
81.20.-n
(Methods of materials synthesis and materials processing)
Fund: Project supported by Hebei
Provincial Technology Development Foundation of China (Grant No
51215103b).
Cite this article:
Li Pan-Lai(李盼来), Yang Zhi-Ping(杨志平), Wang Zhi-Jun(王志军), and Guo Qing-Lin(郭庆林) Preparation and luminescence characteristics of Eu2+ activated silicate phosphor 2008 Chin. Phys. B 17 1135
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