Study of luminescent behavior and crystal defects of different MNa[PO₄]-Dy³⁺ phosphors (M = Mg, Ca, Sr and Ba)

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• 作者：A. Balakrishna^a ; ^{krishnas259@gmail.com} ; ^{balakrishna.veera@gmail.com}Author Vitae ; O.M. Ntwaeaborwa^b ; ^{ntwaeab@gmail.com}Author Vitae
• 关键词：Dy3+ ion ; Alkaline cations ; Fluorescent spectrophotometry ; CIE coordinates
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：242
• 期：Complete
• 页码：305-317
• 全文大小：5181 K
• 卷排序：242

文摘

Different MNa[PO4]-Dy3+, where M = Mg, Ca, Sr and Ba phosphors were fabricated via chemical combustion method. Influence of different alkaline metal ions on the luminescent properties of MNa[PO4]-Dy3+ was discussed. Kubelka–Munk function analysis has been performed. Prepared phosphors emit warm white light with better CIE and lower CCT over previous reports. Among all the prepared samples, CaNa[PO4]-Dy3+ and SrNa[PO4] -Dy3+ phosphors can be act as a promising materials for NUV based w-LEDs.