High-quality powders of mixed metal nitride phosphor, CaAlSiN 3:Eu2+, were successfully synthesized using only inexpensive and air-stable materials, viz. CaCN2, CaCO 3:Eu3+, AlN, and Si3N4, with no impurities such as AlN or carbon residue by a CRN method even under conditions of normal N2 pressure (0.1 MPa) and a moderate temperature of 1600 °C for 57 h. The resultant phosphors were well crystallized and gave an intense red emission band peaking at about 650nm by optimizing the dopant amount of Eu2+ ion (ca. 3 atom%).
|Number of pages||2|
|Publication status||Published - 2014|
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