摘要:
Disclosed is a deep red phosphor (600 nm to 670 nm) of Mn activity having a chemical formula of (k-x)MgOxAF2GeO2:yMn4+ where k is a real number between 2.8 and 5.0, x is a real number between 0.1 and 0.7, y is a real number between 0.005 and 0.015, and A is Ca, Sr, Ba, Zn, or a mixture thereof, or a mixture of Mg and at least one of Ca, Sr, Ba and Zn. The deep red phosphor has a high excitation efficiency and thus can be applied to light emitting diode (LED) packages, which uses an ultraviolet (UV) light source or a blue light source as an excitation light source. The deep red phosphor is applied to a phosphor layer of a phosphor lamp such as a cold cathode fluorescence lamp (CCFL) and a flat fluorescent lamp (FFL).
摘要翻译:公开了具有化学式为(kx)MgO x AF 2 GeO 2的Mn活性的深红色荧光体(600nm至670nm):yMn 4+ / SUP>其中k是2.8和5.0之间的实数,x是0.1和0.7之间的实数,y是0.005和0.015之间的实数,A是Ca,Sr,Ba,Zn或它们的混合物, 或Mg与Ca,Sr,Ba和Zn中的至少一种的混合物。 深红色荧光体具有高的激发效率,因此可以应用于使用紫外线(UV)光源或蓝色光源作为激发光源的发光二极管(LED)封装。 将深红色荧光体施加到诸如冷阴极荧光灯(CCFL)和平面荧光灯(FFL)的荧光灯的荧光体层。
摘要:
Disclosed herein are a metal hydroxy carbonate nanoparticle-coated phosphor and a preparation method thereof. The phosphor coated with metal hydroxy carbonate nanoparticles exhibit improved thermal stability and an increased luminance lifespan, when applied to display devices, e.g., PDPs and lamps.
摘要:
Disclosed herein is a method for preparing a nanophosphor from a metal hydroxy carbonate and a nanophosphor prepared by the method. The method is capable of mass-production of a uniform particle-size nanophosphor with superior dispersibility and enables reduction in preparation costs. The nanophosphor prepared by the disclosed method exhibits high luminescence efficiency.
摘要:
A multilayered white light emitting diode and a method of fabricating the same include forming a phosphor mixture layer including a green phosphor and a blue phosphor on a UV light emitting diode and forming a red quantum dot layer on the phosphor mixture layer. In the white light emitting diode of the present invention, the quantum dots are excited by green and blue visible light, thus increasing luminescence efficiency and realizing stable white light. Moreover, the white light emitting diode can be widely used as a light source having high output and high efficiency, thus being capable of substituting for a backlight unit of an illumination device or display device.