Effect of temperature on intense green emitting Na2Ca(PO4)F:Mn2+ phosphor |
| |
| Authors: | K N Shinde I M Nagpure Abhay B Fulke S J Dhoble |
| |
| Institution: | 1. Department of Physics, N.S. Science and Arts College, Bhadrawati 442902, India;2. Department of Physics, University of the Free State, PO Box 339, Bloemfontein, Free State 9300, South Africa;3. Environmental Health Division, NEERI, Nagpur, 440020, India;4. Department of Physics, RTM Nagpur University, Nagpur, 440033, India |
| |
| Abstract: | An intense green luminescent Na2Ca(PO4)F:Mn2+ phosphor has been prepared at high temperature by reduction treatment in a charcoal environment. The emission band of Mn2+ was obtained at around 522 nm (green) under 259 nm excitation. Enhancement in emission intensity arising from the thermal treatment is reported. The intense emission of the spectrum was assigned to electronic transitions 4T1 → 6A1 of Mn2+ ions. Intense PL emission suggested that temperature employed plays an important role in the present matrix. X‐ray diffraction pattern, photoluminescence and morphology by SEM of the host lattice of phosphors at different temperatures have been reported in this paper. The results obtained show that the present phosphor has potential for application in green emitting phosphors for the lamp industry. Copyright © 2010 John Wiley & Sons, Ltd. |
| |
| Keywords: | phosphate phosphor XRD photoluminescence (PL) green emission |
|
|
