Thermally Stable Blue NaBaPO4: Eu2+ Phosphor Synthesized by Combustion Method
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.
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
J. Y. Sun et al., "Thermally Stable Blue NaBaPO4: Eu2+ Phosphor Synthesized by Combustion Method", Advanced Materials Research, Vols. 295-297, pp. 539-542, 2011