STABILIZED METAL NANOPARTICLES AND METHODS FOR PRODUCTION THEREOF
    44.
    发明公开
    STABILIZED METAL NANOPARTICLES AND METHODS FOR PRODUCTION THEREOF 有权
    稳定的金属纳米粒子及其制造方法

    公开(公告)号:EP2667990A1

    公开(公告)日:2013-12-04

    申请号:EP12739136.5

    申请日:2012-01-25

    Inventor: ZINN, Alfred, A.

    Abstract: Processes for synthesizing metal nanoparticles, particularly copper nanoparticles, are described. The processes can involve reacting an insoluble complex of a metal salt with a reducing agent in a reaction mixture containing a primary amine first surfactant, a secondary amine second surfactant, and a diamine chelating agent third surfactant. More specifically, processes for forming copper nanoparticles can involve forming a first solution containing a copper salt, a primary amine first surfactant, a secondary amine second surfactant, and a diamine chelating agent third surfactant; allowing an insoluble complex of the copper salt to form from the first solution; combining a second solution containing a reducing agent with the insoluble complex; and forming copper nanoparticles from the insoluble complex. Such copper nanoparticles can be about 10 nm or smaller in size, more particularly about 3 nm to about 6 nm in size, and have a fusion temperature of about 200° C. or lower.

    Hybrid materials for printing conductive or semiconductive elements
    46.
    发明公开
    Hybrid materials for printing conductive or semiconductive elements 审中-公开
    Hybride Materialien zum Drucken leitender oder halbleitender Elemente

    公开(公告)号:EP2461655A1

    公开(公告)日:2012-06-06

    申请号:EP10193841.3

    申请日:2010-12-06

    Abstract: The invention relates to a method for preparing a conductive or semi-conductive element, comprising
    - providing a dispersion of an anisotropic particulate hybrid material in a continuous phase, which hybrid material comprises (a) anisotropic particles, and (b) a conductive or semi-conductive material or a precursor for a conductive or semi-conductive material;
    - applying the dispersion to a surface of a substrate; and
    - forming the conductive or semi-conductive element from the dispersion applied to the surface.
    Further the invention relates to materials useful for use in a method of the invention and an electronic device obtainable by a method according to the invention.

    Abstract translation: 本发明涉及一种制备导电或半导电元件的方法,包括 - 提供各向异性颗粒混合材料在连续相中的分散体,该混合材料包括(a)各向异性颗粒,和(b)导电或半导体 导电材料或导电或半导体材料的前体; - 将分散体施加到基材的表面; 以及 - 从施加到表面的分散体形成导电或半导体元件。 此外,本发明涉及可用于本发明方法的材料和通过根据本发明的方法获得的电子装置。

    LEAD SOLDER-FREE ELECTRONICS
    48.
    发明公开
    LEAD SOLDER-FREE ELECTRONICS 有权
    铅焊料免费电子

    公开(公告)号:EP2346680A1

    公开(公告)日:2011-07-27

    申请号:EP09813434.9

    申请日:2009-08-20

    Inventor: ZINN, Alfred, A.

    Abstract: A composition may have metal nanoparticles having a diameter of 20 nanometers or less and have a fusion temperature of less than about 220 0C. A method of fabricating the metal nanoparticles may include preparing a solvent, adding a precursor with a metal to the solvent, adding a first surfactant, mixing in a reducing agent, and adding in a second surfactant to stop nanoparticle formation. Copper and/or aluminum nanoparticle compositions formed may be used for lead-free soldering of electronic components to circuit boards. A composition may include nanoparticles, which may have a copper nanocore, an amorphous aluminum shell and an organic surfactant coating. A composition may have copper or aluminum nanoparticles. About 30-50% of the copper or aluminum nanoparticles may have a diameter of 20 nanometers or less, and the remaining 70-50% of the copper or aluminum nanoparticles may have a diameter greater than 20 nanometers.

    Abstract translation: 组合物可以具有直径为20纳米或更小的金属纳米颗粒并且具有小于约220℃的熔化温度。 制造金属纳米粒子的方法可以包括制备溶剂,向溶剂中加入具有金属的前体,添加第一表面活性剂,混合在还原剂中,并添加第二表面活性剂以停止纳米粒子的形成。 所形成的铜和/或铝纳米粒子组合物可用于电子元件到电路板的无铅焊接。 组合物可以包括纳米颗粒,其可以具有铜纳米芯,无定形铝壳和有机表面活性剂涂层。 组合物可以具有铜或铝纳米颗粒。 约30-50%的铜或铝纳米颗粒可以具有20纳米或更小的直径,并且剩余的70-50%的铜或铝纳米颗粒可以具有大于20纳米的直径。

    Photochemical synthesis of bimetallic core-shell nanoparticles
    49.
    发明公开
    Photochemical synthesis of bimetallic core-shell nanoparticles 审中-公开
    Fotochemische Synthese von bimetallischen Kern-Hülle-Nanopartikeln

    公开(公告)号:EP2130627A1

    公开(公告)日:2009-12-09

    申请号:EP09160745.7

    申请日:2009-05-20

    Abstract: A method of forming bimetallic core-shell metal nanoparticles including a core of a first metal material and a shell of a second metal material, the method including photochemically producing metallic nanoparticle cores of the first metal material, and forming a shell of the second metal material around the cores. The shell can be formed by adding shell-forming precursor materials to a solution or suspension of the cores and photochemically forming the shells around the cores, or by separately photochemically producing metallic nanoparticles of the second metal material and mixing the metallic nanoparticles of the second metal material and the metallic nanoparticle cores to cause the metallic nanoparticles of the second metal material to form a shell around the metallic nanoparticle cores.

    Abstract translation: 一种形成双金属核 - 壳金属纳米颗粒的方法,包括第一金属材料的芯和第二金属材料的壳,所述方法包括光化学制备第一金属材料的金属纳米颗粒芯,并形成第二金属材料的壳 围绕核心。 可以通过将壳形成前体材料添加到芯的溶液或悬浮液中并在芯周围光化学形成壳体,或者通过单独光化学制备第二金属材料的金属纳米颗粒并混合第二金属的金属纳米颗粒来形成壳 材料和金属纳米颗粒芯,以使第二金属材料的金属纳米颗粒在金属纳米颗粒芯周围形成壳。

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