Chang C.-C.Yang C.-Y.Lu C.-H.2019-05-132019-05-13201309574522https://scholars.lib.ntu.edu.tw/handle/123456789/407390Strontium aluminate phosphors doped with europium ions (Sr 4Al14O25:Eu2+) were successfully synthesized via the microemulsion route. In comparison with the traditional solid-state reaction process, the calcination temperature of Sr 4Al14O25:Eu2+ phase in this study was lowered to 1,100 ¢XC when the flux was added. In addition, the particle size of Sr4Al14O25:Eu2+ phosphors prepared via the microemulsion route was greatly reduced to 50 nm. The lowered synthesis temperature and reduced particle size are attributed to nano-scaled micelles formed in the microemulsion system. The emission and excitation intensity of Sr4Al14O25:Eu2+ phosphors were increased with an increase in the synthesis temperature. In addition, the rise in the calcination temperature lowered the afterglow characteristics of Sr4Al14O25:Eu2+ phosphors. The microemulsion route was demonstrated to be an more effective process than the solid-state reaction process for preparing Sr 4Al14O25:Eu2+ phosphors. ? Springer Science+Business Media New York 2012.journal article10.1007/s10854-012-0952-x2-s2.0-84893712556https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893712556&doi=10.1007%2fs10854-012-0952-x&partnerID=40&md5=7fb70d1378adab2b4a70f726c7cfcb21