2006

LuminescenceD 6540 Eu2+-Doped High-Temperature Phase Ca3SiO4Cl2. — The novel yellowish orange

title phosphor is synthesized by solid state reaction of CaCO3, CaCl2, and SiO2 (2:1.2:1 molar ratio) and a small amount of Eu2O3 (CO, 850 °C, 3 h followed by 1020 °C, 2 h). The samples are characterized by XRD, DTA, SEM, and PL spectroscopy. The phos-phor crystallizes in the monoclinic space group P21/c. Its emission spectrum shows a single intense broad emission band centered at 572 nm. The material would be a suit-able yellowish orange phosphor for white LED applications. — (LIU, J.; LIAN, H.; SHI, C.; SUN, J.; J. Electrochem. Soc. 152 (2005) 11, G880-G884; Lab. Rare Earth Chem. Phys., Changchun Inst. Appl. Chem., Acad. Sin., Changchun 130022, Peop. Rep. China; Eng.) — W. Pewestorf

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