2003
DOI: 10.1016/s0022-2313(02)00541-0
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Mn2+ activated green, yellow, and red long persistent phosphors

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Cited by 264 publications
(102 citation statements)
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“…Our starting material composition was the previously described MgSiO 3 :Eu 2ϩ ,Dy 3ϩ ,Mn 2ϩ , which was obtained by solid state reaction, and which shows long persistent red luminescence (14). To optimize the emission in the infrared and to prepare NPs, we selected the composition Ca 0.2 Zn 0.9 Mg 0.9 Si 2 O 6 , which was doped with the same luminescent ions (Eu 2ϩ , Dy 3ϩ , Mn 2ϩ ).…”
Section: Resultsmentioning
confidence: 99%
“…Our starting material composition was the previously described MgSiO 3 :Eu 2ϩ ,Dy 3ϩ ,Mn 2ϩ , which was obtained by solid state reaction, and which shows long persistent red luminescence (14). To optimize the emission in the infrared and to prepare NPs, we selected the composition Ca 0.2 Zn 0.9 Mg 0.9 Si 2 O 6 , which was doped with the same luminescent ions (Eu 2ϩ , Dy 3ϩ , Mn 2ϩ ).…”
Section: Resultsmentioning
confidence: 99%
“…However, the FWHM was expanded again when the heating temperature rises to 1200°C. The results exhibit that pure Ca 2 Al 2 SiO 7 phase can be obtained at 1000°C, and the firing temperature is reduced by 300°C, compared with the conventional solid-state method [18]. The reasons for the lower crystalline temperature in the sol-gel process may be attributed to the fact that sol-gel synthesis provides a molecular level mixing of elements because metal ions are homogeneously dissolved in solution.…”
Section: Xrd Analysis For the Crystal Structurementioning
confidence: 98%
“…Orange-red persistent luminescence based on the Mn 2+ emission has been observed from MgSiO 3 : Mn 2+ ,Eu 2+ ,Dy 3+ (λ em = 660 nm) [4], MgGeO 2.88 F 0.24 :Mn 2+ , Yb 2+ (670 nm) [5], ␤-Zn 3 (PO 4 ) 2 :Mn 2+ ,M 3+ (M = Al, Ga) (616 nm) [6], and CdSiO 3 :Mn 2+ (575 nm) [7]. Other materials with red persistent luminescence include CaTiO 3 :Pr 3+ [8], Y 2 O 3 :Eu 3+ ,Ti 4+ ,Mg 2+ [9], and Y 2 O 2 S:Sm 2+ [10].…”
Section: Introductionmentioning
confidence: 96%