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Ce3+ And Eu3+ Activtated Na2Sr2Al2PO4F9 Nanophosphor

S.J. Dhoble, K.N. Shinde

Volume 2, Issue 5, Page 349-353 | DOI: 10.5185/amlett.2011.3072am2011

Keywords: Nanophosphors; wet chemical synthesis; white lighting; photoluminescence

Abstract: 

A halophosphate based nanophosphor has been synthesized by wet chemical method. XRD confirms the preparation of nanophosphor and this article presents the luminescence properties of Ce3+ and Eu3+ activated Na2Sr2Al2PO4F9 under UV/NUV excitation. The photoluminescence spectrum comprises of a main peak in the range 270–350 nm with a shoulder in the range 350–370 nm, which may be ascribed to transitions from 5d–4f levels of cerium in the mixed host lattice (Na2Sr2Al2PO4F9). In Na2Sr2Al2PO4F9: Eu3+ nanophosphor, orange/red luminescence under the near ultraviolet excitation of 393 nm, attributed to the transitions from 5D0 excited states to 7FJ (J=0–4) ground states of Eu3+ ions. Copyright © 2011 VBRI press.

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