摘要:
The present invention provides a phosphor that has high luminance, a property of low luminance degradation during PDP driving, and chromaticity y comparable to that of BAM:Eu. The present invention is the phosphor that is represented by the general formula xAO.y1EuO.y2EuO3/2.DO.zSiO2 wherein A is at least one selected from Ca, Sr and Ba, D is at least one selected from Mg and Zn, and 2.970≦x≦3.500, 0.001≦y1+y2≦0.030, and 1.900≦z≦2.100 are satisfied, and that has 50 mol % or less of the divalent Eu ratio (ratio of the divalent Eu element to the total of the Eu elements) in the vicinity of the surface of the phosphor particle.
摘要翻译:本发明提供了具有高亮度,PDP驱动时亮度劣化低的特性和与BAM:Eu相当的色度y的荧光体。 本发明是由通式xAO.y1EuO.y2EuO3 / 2.DO.zSiO2表示的荧光体,其中A是选自Ca,Sr和Ba中的至少一种,D是选自Mg和Zn中的至少一种,以及 2.970 <= x <= 3.500,0.001 <= y1 + y2 <= 0.030,并且满足1.900 <= z <= 2.100,并且具有50mol%以下的二价Eu比(二价Eu元素与 荧光体颗粒表面附近的Eu元素的总和)。
摘要:
The present invention aims to provide a Eu-activated phosphor that maintains high wavelength conversion efficiency and suppresses deterioration with time due to vacuum ultraviolet irradiation, as well as a plasma display panel having superior display performance by suppressing sticking image caused by deterioration of the phosphor with time. To this end, the present invention provides a europium-activated phosphor where a divalent europium ratio of each phosphor particle constituting the phosphor is lower at and in a vicinity of a particle surface than for the particle as a whole. With such phosphor particles, it is possible to obtain the Eu-activated phosphor that has high maintaining ratio of emission intensity and high performance in suppressing deterioration with time in comparison with a conventional phosphor.
摘要:
The present invention provides a phosphor having high luminance, a property of low luminance degradation during driving of a light-emitting device, and chromaticity y comparable to that of BAM:Eu. The present invention is a phosphor represented by the general formula aAO.bEuO.DO.cSiO2, where A is at least one selected from Ca, Sr and Ba, D is at least one selected from Mg and Zn, and 2.970≦a≦3.500, 0.001≦b≦0.030, and 1.900≦c≦2.100 are satisfied. In this phosphor, a peak intensity at 1490 cm−1 is 0.02 to 0.8 when a peak intensity at 565 cm−1 is set to 1 in a spectrum obtained by measurement using photoacoustic spectroscopy.
摘要翻译:本发明提供一种具有高亮度,在发光装置的驱动期间的低亮度劣化的性质以及与BAM:Eu相当的色度y的荧光体。 本发明是由通式aAO.bEuO.DO.cSiO2表示的荧光体,其中A为选自Ca,Sr和Ba中的至少一种,D为选自Mg和Zn中的至少一种,2.970 <= a < = 3.500,0.001 <= b <= 0.030,并且满足1.900 <= c <= 2.100。 在该荧光体中,当使用光声光谱测定得到的光谱中,当在565cm -1处的峰值强度为1时,在1490cm -1处的峰强度为0.02〜0.8。
摘要:
The present invention provides a phosphor having high luminance, a property of low luminance degradation during driving of a light-emitting device and manufacturing processes, and chromaticity y in PDP comparable to that of BAM:Eu. The present invention is the phosphor represented by the general formula xSrO.yEuO.MgO.zSiO2 where 2.970≦x≦3.500, 0.001 ≦y≦0.030, and 1.900≦z≦2.100 are satisfied, wherein a main peak is present in the range of diffraction angle 2θ=16.1 to 16.5 degree in the X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 Å, and at least one condition of the following conditions (A1) and (A2) is satisfied: (A1) at least two peaks whose tops are located in the range of diffraction angle 2θ=15.3 to 16.1 degree are present; and (A2) at least two peaks whose tops are located in the range of diffraction angle 2θ=22.2 to 23.3 degree are present.
摘要:
The present invention provides a phosphor having high luminance, a property of low luminance degradation during driving of a light-emitting device, and chromaticity y comparable to that of BAM:Eu. The present invention is a phosphor represented by the general formula aAO.bEuO.DO.cSiO2, where A is at least one selected from Ca, Sr and Ba, D is at least one selected from Mg and Zn, and 2.970≦a≦3.500, 0.001≦b≦0.030, and 1.900≦c≦2.100 are satisfied. In this phosphor, a peak intensity at 1490 cm−1 is 0.02 to 0.8 when a peak intensity at 565 cm−1 is set to 1 in a spectrum obtained by measurement using photoacoustic spectroscopy.
摘要:
The present invention provides a phosphor having high luminance, a property of low luminance degradation during driving of a light-emitting device and manufacturing processes, and chromaticity y in PDP comparable to that of BAM:Eu. The present invention is the phosphor represented by the general formula xSrO.yEuO.MgO.zSiO2 where 2.970≦x≦3.500, 0.001≦y≦0.030, and 1.900≦z≦2.100 are satisfied, wherein a main peak is present in the range of diffraction angle 2θ=16.1 to 16.5 degree in the X-ray diffraction pattern obtained by measurement on the blue phosphor using an X-ray with a wavelength of 0.774 Å, and at least one condition of the following conditions (A1) and (A2) is satisfied: (A1) at least two peaks whose tops are located in the range of diffraction angle 2θ=15.3 to 16.1 degree are present; and (A2) at least two peaks whose tops are located in the range of diffraction angle 2θ=22.2 to 23.3 degree are present.
摘要:
Phosphors having high luminescence characteristics are provided while achieving manufacturing cost reductions by minimizing the usage amount of Eu, the luminescence center. Also provided are a display device (PDP, etc) and a fluorescent lamp having excellent display and/or luminescence characteristics as a result of using the phosphors, while achieving manufacturing cost reductions by minimizing the Eu usage amount.
摘要:
Phosphors having high luminescence characteristics are provided while achieving manufacturing cost reductions by minimizing the usage amount of Eu, the luminescence center. Also provided are a display device (PDP, etc) and a fluorescent lamp having excellent display and/or luminescence characteristics as a result of using the phosphors, while achieving manufacturing cost reductions by minimizing the Eu usage amount.
摘要:
A phosphor of the present invention is characterized by: having a phosphor main portion containing zinc silicate as a base material and manganese as an activator; and having at least one element from among titanium (Ti), zirconium (Zr), and hafnium (Hf), or having at least one element from among molybdenum (Mo) and tungsten (W), added to the phosphor main portion. The phosphor with such a composition is capable of precisely controlling the composition of a surface region (i.e. the surface including the vicinity) of each phosphor particle and improving the crystallinity, which leads to a high luminous efficiency and a reduction in time-lapse degradation.