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    • 4. 发明授权
    • Light-emitting diode having zinc oxide nanorods and method of fabricating the same
    • 具有氧化锌纳米棒的发光二极管及其制造方法
    • US08614452B2
    • 2013-12-24
    • US13094338
    • 2011-04-26
    • Ki-Seok KimGun-Young JungSang-Mook KimMun-Seok JeongHyun Jeong
    • Ki-Seok KimGun-Young JungSang-Mook KimMun-Seok JeongHyun Jeong
    • H01L33/00
    • B82Y40/00B82Y30/00H01L33/14H01L33/22
    • The light extraction efficiency of a typical light-emitting diode (LED) is improved by incorporating one-dimensional ZnO nanorods. The light extraction efficiency is improved about 31% due to the waveguide effect of ZnO sub-microrods, compared to an LED without the nanorods. Other shapes of ZnO microrods and nanorods are produced using a simple non-catalytic wet chemical growth method at a low temperature on an indium-tin-oxide (ITO) top contact layer with no seed layer. The crystal morphology of a needle-like or flat top hexagonal structure and the density and size of ZnO microrods and nanorods are easily modified by controlling the pH value and growth time. The waveguide phenomenon in each ZnO rod is observed using confocal scanning electroluminescence microscopy (CSEM) and micro-electroluminescence spectra (MES).
    • 典型的发光二极管(LED)的光提取效率通过掺入一维ZnO纳米棒得到改善。 与没有纳米棒的LED相比,由于ZnO亚微米的波导效应,光提取效率提高了约31%。 使用简单的非催化湿化学生长法在不含种子层的铟锡氧化物(ITO)顶部接触层上,在低温下制备其他形状的ZnO微晶棒和纳米棒。 通过控制pH值和生长时间,可以容易地改变针状或平顶六边形结构的晶体形态以及ZnO微结构和纳米棒的密度和尺寸。 使用共焦扫描电致发光显微镜(CSEM)和微电致发光光谱(MES)观察每个ZnO棒中的波导现象。
    • 7. 发明申请
    • LIGHT-EMITTING DIODE HAVING A WAVELENGTH CONVERSION MATERIAL LAYER, AND METHOD FOR FABRICATING SAME
    • 具有波长转换材料层的发光二极管及其制造方法
    • US20120086040A1
    • 2012-04-12
    • US13376714
    • 2010-06-10
    • Kwang-Cheol LeeJae-Pil KimSang-Bin SongSang-Mook Kim
    • Kwang-Cheol LeeJae-Pil KimSang-Bin SongSang-Mook Kim
    • H01L33/50
    • H01L33/507H01L33/501H01L2924/0002H01L2933/0041H01L2924/00
    • Provided is a light-emitting diode having a wavelength conversion material and a method for fabricating the same. The light-emitting diode comprises: a base structure; a light-emitting diode chip arranged on the base structure; and a wavelength conversion material layer arranged on the light-emitting diode chip, such that the area adjacent the upper surface of the light-emitting diode chip is thicker than the area adjacent to the side surface of the light-emitting diode chip. In addition, the method for fabricating a light-emitting diode comprises: a step of arranging the light-emitting diode chip on the base structure; and a step of arranging a wavelength conversion material layer containing a light-transmitting photocurable material on the light-emitting diode chip, such that the area thereof adjacent to the upper surface of the light-emitting diode chip is thicker than the area thereof adjacent to the side surface of the light-emitting diode chip.
    • 提供一种具有波长转换材料的发光二极管及其制造方法。 发光二极管包括:基座结构; 布置在基底结构上的发光二极管芯片; 以及布置在发光二极管芯片上的波长转换材料层,使得与发光二极管芯片的上表面相邻的区域比与发光二极管芯片的侧表面相邻的区域更厚。 此外,制造发光二极管的方法包括:将发光二极管芯片布置在基底结构上的步骤; 以及在发光二极管芯片上布置含有透光性光固化性材料的波长转换材料层的步骤,使得其与发光二极管芯片的上表面相邻的面积比邻近发光二极管芯片的面积厚 发光二极管芯片的侧面。