STABLE NANOPARTICLES AND METHODS OF MAKING AND USING SUCH PARTICLES
    5.
    发明申请
    STABLE NANOPARTICLES AND METHODS OF MAKING AND USING SUCH PARTICLES 有权
    稳定的纳米颗粒及其制备和使用这种颗粒的方法

    公开(公告)号:US20110226991A1

    公开(公告)日:2011-09-22

    申请号:US13125562

    申请日:2009-10-23

    IPC分类号: C09K11/54 B05D7/00 B82Y99/00

    摘要: A population of nanoparticles is disclosed. The population is comprised of a plurality of core/shell nanocrystals, each including: a semiconductor core, an intermediate semiconductor shell layer disposed over the semiconductor core, an external semiconductor shell layer disposed over the intermediate semiconductor shell layer, and a hydrophilic organic layer in direct contact with the external semi-conductor shell layer. The population of nanoparticles has a αon value of less than about 1.4.

    摘要翻译: 公开了一群纳米颗粒。 群体由多个核/壳纳米晶体组成,每个核/壳纳米晶体包括:半导体芯,设置在半导体芯上的中间半导体外壳层,设置在中间半导体外壳层上的外部半导体外壳层,以及设置在中间半导体外壳层上的亲水性有机层 与外部半导体外壳层直接接触。 纳米粒子的αon值小于约1.4。

    Preparation of stable, bright luminescent nanoparticles having compositionally engineered properties
    8.
    发明授权
    Preparation of stable, bright luminescent nanoparticles having compositionally engineered properties 有权
    具有组成工程化特性的稳定的,明亮的发光纳米颗粒的制备

    公开(公告)号:US07695642B2

    公开(公告)日:2010-04-13

    申请号:US11011827

    申请日:2004-12-13

    IPC分类号: C09K11/88

    摘要: A method is provided for preparing luminescent semiconductor nanoparticles composed of a first component X, a second component A, and a third component B, wherein X, A, and B are different, by combining B with X and A in an amount such that the molar ratio B:(A+B) is in the range of approximately 0.001 to 0.20 and the molar ratio X:(A+B) is in the range of approximately 0.5:1.0 to 2:1. The characteristics of the thus-prepared nanoparticles can be substantially similar to those of nanoparticles containing only X and B while maintaining many useful properties characteristic of nanoparticles containing only X and A. The nanoparticles so prepared can additionally exhibit emergent properties such as a peak emission energy less than that characteristic of a particle composed of XA or XB alone; this method is particularly applicable to the preparation of stable, bright nanoparticles that emit in the red to infrared regions of the electromagnetic spectrum. Luminescent semiconductor nanoparticles having exemplary properties are also provided.

    摘要翻译: 提供一种制备由第一组分X,第二组分A和第三组分B组成的发光半导体纳米颗粒的方法,其中X,A和B不同,通​​过将B与X和A组合使得其量使得 摩尔比B:(A + B)在约0.001至0.20的范围内,摩尔比X:(A + B)在约0.5:1.0至2:1的范围内。 如此制备的纳米颗粒的特征可以与仅含有X和B的纳米颗粒的特征基本相似,同时保持了仅含有X和A的纳米颗粒的许多有用特性。如此制备的纳米颗粒可另外显示出出现的特性,例如峰值发射能 小于单独由XA或XB组成的颗粒的特征; 该方法特别适用于在电磁光谱的红色至红外区域中发射的稳定的明亮纳米粒子的制备。 还提供了具有示例性质的发光半导体纳米颗粒。

    Preparation of Stable, Bright Luminescent Nanoparticles Having Compositionally Engineered Properties
    10.
    发明申请
    Preparation of Stable, Bright Luminescent Nanoparticles Having Compositionally Engineered Properties 有权
    具有组成性能的稳定,明亮的发光纳米颗粒的制备

    公开(公告)号:US20130037762A1

    公开(公告)日:2013-02-14

    申请号:US13608296

    申请日:2012-09-10

    IPC分类号: H01B1/06 B82Y30/00

    摘要: A method is provided for preparing luminescent semiconductor nanoparticles composed of a first component X, a second component A, and a third component B, wherein X, A, and B are different, by combining B with X and A in an amount such that the molar ratio B:(A+B) is in the range of approximately 0.001 to 0.20 and the molar ratio X:(A+B) is in the range of approximately 0.5:1.0 to 2:1. The characteristics of these nanoparticles can be substantially similar to those of nanoparticles containing only X and B while maintaining many useful properties characteristic of nanoparticles containing only X and A; and can additionally exhibit emergent properties such as a peak emission energy less than that characteristic of a particle composed of XA or XB alone. This method is particularly applicable to the preparation of stable, bright nanoparticles that emit in the red to infrared regions of the electromagnetic spectrum.

    摘要翻译: 提供一种制备由第一组分X,第二组分A和第三组分B组成的发光半导体纳米颗粒的方法,其中X,A和B不同,通​​过将B与X和A组合使得其量使得 摩尔比B:(A + B)在约0.001至0.20的范围内,摩尔比X:(A + B)在约0.5:1.0至2:1的范围内。 这些纳米颗粒的特征可以与仅含有X和B的纳米颗粒的特征基本相似,同时保持仅含有X和A的纳米颗粒的许多有用特性; 并且可以另外表现出突出性质,例如小于单独由XA或XB组成的颗粒的特征的峰值发射能量。 该方法特别适用于制备在电磁光谱的红色至红外区域发射的稳定的明亮纳米粒子。