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Thermally Stable Blue NaBaPO4: Eu2+ Phosphor Synthesized by Combustion Method

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Abstract:

A blue-emitting phosphor, NaBaPO4:Eu2+, was prepared by solution combustion synthesis method, and its luminescence properties were investigated in detail. It was found that NaBaPO4:Eu2+ could be efficiently excited by the UV-visible light of 230-420 nm and exhibited bright blue emission, which matched well with the emission wavelength of near-UV LED chips. NaBaPO4:Eu2+ showed high thermally stable luminescence compared to commercial phosphor YAG:Ce3+. With the increase of the temperature, the normalized emission intensity of NaBa0.98PO4:0.02Eu2+ decreased to 92.3% of the initial value at 423 K, and the emission band exhibited a little blue-shift.

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Periodical:

Advanced Materials Research (Volumes 295-297)

Pages:

539-542

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.295-297.539

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Online since:

July 2011

Authors:

Jia Yue Sun, Xiang Yan Zhang, Hai Yan Du

Keywords:

Combustion Synthesis, Na Ba P O4: Eu2+, Thermal Quenching, White LEDs

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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