Current Science

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The present study involves the synthesis of a series of Dy3+ (1–11 mol%) doped LaOF nanophosphor prepared by solution combustion method using Aloe Veragel as fuel. The samples were characterized by powder X-ray diffraction and scanning electron microscopy.The average crystallite size was estimated fromDebye–Scherer’s and Williamson–Hall plots and the values were found to be in the 25–40 nm range. The effect of Dy3+ ions on luminescence characteristics of LaOF was studied and the results discussed. The CIEdiagram clearly indicated that the entire co-ordinates were well coated in the white region and as a result itwas quite useful for fabrication of white-light-emitting diodes.

Keywords

Lanthanum Oxyfluoride, Nanophosphor, PXRD, SEM, Synthesis.
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