Luminescence studies on Ba2ZnSi2O7 : Eu2+ phosphors crystals

A novel blue green‐emitting phosphor Ba2ZnSi2O7 : Eu2+ was prepared by combustion synthesis method and an efficient bluish green emission under from ultraviolet to visible light was observed. The emission spectrum shows a single intensive band centered at 503 nm, which corresponds to the 4f65d1 → 4f...

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Bibliographic Details
Published in:Luminescence (Chichester, England) England), 2010-09, Vol.25 (5), p.399-402
Main Authors: Yao, Shan-shan, Li, Yuan-yuan, Xue, Li-hong, Yan, You-wei, You, Yan
Format: Article
Language:English
Subjects:
combustion synthesis
luminescence
phosphors
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Summary:A novel blue green‐emitting phosphor Ba2ZnSi2O7 : Eu2+ was prepared by combustion synthesis method and an efficient bluish green emission under from ultraviolet to visible light was observed. The emission spectrum shows a single intensive band centered at 503 nm, which corresponds to the 4f65d1 → 4f7 transition of Eu2+. The excitation spectrum is a broad band extending from 260 to 465 nm, which matches the emission of ultraviolet light‐emitting diodes (UV‐LEDs). The effect of doped Eu2+ concentration on the emission intensity of Ba2ZnSi2O7 : Eu2+ was also investigated. The result indicates that Ba2ZnSi2O7 : Eu2+ can be potentially useful as a UV radiation‐converting phosphor for white light‐emitting diodes. Copyright © 2009 John Wiley & Sons, Ltd.
ISSN:1522-7235
1522-7243
DOI:10.1002/bio.1168