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    • 5. 发明授权
    • Fluorescent lighting with aluminum nitride phosphors
    • 荧光灯采用氮化铝荧光粉
    • US09337010B2
    • 2016-05-10
    • US14840839
    • 2015-08-31
    • Lawrence Livermore National Security, LLC.GE Electric Company
    • Nerine J. CherepyStephen A. PayneZachary M. SeeleyAlok M. Srivastava
    • H01J1/62H01J61/44H01J61/20H01J9/24H01J9/22
    • H01J61/44H01J9/22
    • A fluorescent lamp includes a glass envelope; at least two electrodes connected to the glass envelope; mercury vapor and an inert gas within the glass envelope; and a phosphor within the glass envelope, wherein the phosphor blend includes aluminum nitride. The phosphor may be a wurtzite (hexagonal) crystalline structure Al(1-x)MxN phosphor, where M may be drawn from beryllium, magnesium, calcium, strontium, barium, zinc, scandium, yttrium, lanthanum, cerium, praseodymium, europium, gadolinium, terbium, ytterbium, bismuth, manganese, silicon, germanium, tin, boron, or gallium is synthesized to include dopants to control its luminescence under ultraviolet excitation. The disclosed Al(1-x)MxN:Mn phosphor provides bright orange-red emission, comparable in efficiency and spectrum to that of the standard orange-red phosphor used in fluorescent lighting, Y2O3:Eu. Furthermore, it offers excellent lumen maintenance in a fluorescent lamp, and does not utilize “critical rare earths,” minimizing sensitivity to fluctuating market prices for the rare earth elements.
    • 荧光灯包括玻璃外壳; 连接到玻璃外壳的至少两个电极; 汞蒸气和玻璃封套内的惰性气体; 和玻璃外壳内的磷光体,其中所述磷光体共混物包括氮化铝。 磷光体可以是纤锌矿(六方晶)晶体结构Al(1-x)MxN荧光体,其中M可以从铍,镁,钙,锶,钡,锌,钪,钇,镧,铈,镨,铕, 合成钆,铽,镱,铋,锰,硅,锗,锡,硼或镓,以包括在紫外线激发下控制其发光的掺杂剂。 所公开的Al(1-x)MxN:Mn荧光粉提供了明亮的橙红色发射,其效率和光谱与用于荧光照明,Y 2 O 3:Eu的标准橙红色荧光体相当。 此外,它在荧光灯中提供优异的流明维持率,并且不利用“关键稀土”,使对稀土元素的市场价格波动的敏感性最小化。