کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5364650 | 1388318 | 2008 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Green chemistry-mediated synthesis of nanostructures of afterglow phosphor Green chemistry-mediated synthesis of nanostructures of afterglow phosphor](/preview/png/5364650.png)
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 (â¼511Â nm) as compared to the bulk phosphor (â¼520Â 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.
Journal: Applied Surface Science - Volume 254, Issue 13, 30 April 2008, Pages 4052-4055