Abstract
The nitridation process of Eu-doped AEAlSi (AE=Ca, Sr) was investigated by thermogravimetry-differential thermal analysis (TG/DTA) to improve the method for synthesis of AEAlSiN3:Eu nitride phosphors. The nitridation reactivity was dependent on alkaline earth elements. For SrxEuyCa1-x-yAlSi with a high Sr content, nitridation proceeded efficiently at the melting point of the intermetallic compounds. A highly efficient process for large-scale production of SrxCa1-xAlSiN3:Eu (SCASN) phosphor was developed taking advantage of the characteristic nitridation reaction at the melting point.
