Sharma, Pooja and Haranath, D. and Chander, Harish and Singh, Sukhvir (2008) Green chemistry-mediated synthesis of nanostructures of afterglow phosphor. Applied Surface Science, 254 (13). 4052-4055. ISSN 0169-4332

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Abstract

Various nanostructures of SrAl2O4:Eu2+, Dy3+ (SAC) afterglow phosphor were prepared in a single-step reaction using a green chemistry-mediated modified combustion process. The evolution of hazardous NxOx gases during the customary combustion reaction was completely eliminated by employing an innovative complex formation route. Another fascinating feature of the process was that, a slight change in the processing conditions ensured the synthesis of either nanoparticles or nanowires. The photoluminescence spectrum of nanophosphor showed a slight blue shift in emission (∼511 nm) as compared to the bulk phosphor (∼520 nm). The afterglow (decay) profiles of SAC nanoparticles, nanowires and bulk phosphor were compared. The chemistry underlying the nanostructure synthesis and the probable afterglow mechanism were discussed.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier B.V.
Uncontrolled Keywords:	Phosphor; Afterglow; Nanoparticle; Nanowire; Green chemistry
Subjects:	Nanoscience/ Nanotechnology Physical Chemistry/Chemical Physics Physics
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	28 Oct 2014 07:50
Last Modified:	28 Oct 2014 07:50
URI:	http://npl.csircentral.net/id/eprint/1039

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