| 摘要 |
PURPOSE: To obtain a high-luminance phosphor capable of attaining sufficiently high luminance without the aid of high-density electron beam irradiation, thus useful as an orange phosphor. CONSTITUTION: This phoshor is a Mn-activated ZnS phosphor represented by the composition formula ZnS:Mn, wherein, when the half-value width of<67> Zn signal in the proximity of 380ppm (Δν1/2 (Zn)) determined by static NMP is plotted in relation to the Mn concentration, and the half-value width of<67> Zn signal in the proximity of 380ppm (Δν1/2 (Zn)ST) determined by static NMR is plotted in relation to the Mn concentration of a ZnS:Mn phosphor as the standard, the relationship:Δν2 (Mn)>Δν1/2 (Mn)ST is satisfied where the above two kinds of Mn concentrations are identical.
|
