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Open Access Energy transfer and photoluminescence properties in Bi3+ and Eu3+ co-doped ZnGa2O4

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A series of single phase Bi3+/Eu3+ co-doped ZnGa2O4 phosphors were prepared by high temperature solid state reaction and their luminescence properties were investigated. The Bi3+/Eu3+ co-doped ZnGa2O4 phosphor exhibited an intense broad blue light emission located at 430 nm from Bi3+ and a narrow red emission at 616 nm form Eu3+. Energy transfer from Bi3+ to Eu3+ was observed in the ZnGa2O4 host matrix. The color tunbility of Bi3+/Eu3+ co-doped ZnGa2O4 phosphor can be obtained by changing the Eu3+ concentration, which indicates that color tunable Bi3+/Eu3+ co-doped ZnGa2O4 phosphor has a potential application in light emitting diodes. Additionally, the blue long persistent luminescence of ZnGa2O4:Bi3+ phosphor was obtained.
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Keywords: BI3+/EU3+ CO-DOPED ZNGA2O4; ENERGY TRANSFER; LUMINESCENCE; OPTICAL PROPERTY

Document Type: Short Communication

Publication date: December 1, 2013

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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