Luminescent material and method for manufacturing the same and luminescent device thereof

Luminescent material and method for manufacturing the same and luminescent device thereof

  • CN 101,108,966 A
  • Filed: 07/19/2007
  • Published: 01/23/2008
  • Est. Priority Date: 07/19/2006
  • Status: Active Application
First Claim
Patent Images

1. europkium-activated orthosilicic acid alkali earths fluor, it comprises the compound of forming that has by following general formula (1) expression, and when being the ultraviolet excitation of 254nm with wavelength, demonstrates the luminous zone with the peak wavelength more than the 600nm,(Sr x

  • Ba y

    Ca z

    Eu w) 2SiO 4(1) Wherein, x, y, z and w satisfy following relational expression (2), (4)~

    (7), and be 573 at a, b is 467, c is 623, d is 736 o'"'"'clock, is the value that satisfies (3) formula;

    x+y+z+w=

    1 (2)600≤

    ax+by+cz+dw (3)0≤

    x/(1-w)≤

    0.95 (4)0≤

    y/(1-w)≤

    0.4 (5)0<

    z/(1-w)≤

    0.95 (6)0.02≤

    w≤

    0.2 (7)。

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