Solution combustion derived Zn2SiO4 : Mn green phosphors - A photo luminescence study

Chakradhar, Sreekanth RP and Nagabhushana, BM and Chandrappa, GT and Ramesh, KP and Rao, JL (2003) Solution combustion derived Zn2SiO4 : Mn green phosphors - A photo luminescence study. In: DAE Solid State Physics Symposium, Dec 26 - 30, 2003., Gwalior,India.

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Abstract

Zn2SiO4 : Mn green phosphor have been synthesized in aqueous medium by combustion process . The microstructures of crystalline products was characterized by XRD, SEM, TG-DTA and fluorescence spectroscopies. The luminescence of Mn2+ ion in Zn2SiO4 shows a green emission peak around 517-520 nm form the synthesized phosphor particles under UV excitation (251 nm). The luminescence is assigned to a transition from the upper 4T1 \rightarrow 6A1 ground state. The mechanism involved in the generation of a green emission have been explained in detail. The effect of Mn content on luminescence have also been studied.

Item Type:	Conference Poster
Keywords:	Zn2SiO4;Mn green phosphors;photo luminescence
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	06 Jan 2005
Last Modified:	19 Sep 2010 04:17
URI:	http://eprints.iisc.ernet.in/id/eprint/2604

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