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    • 2. 发明申请
    • LIGHT EMITTING DEVICES AND DISPLAYS WITH IMPROVED PERFORMANCE
    • 具有改进性能的发光器件和显示器
    • WO2008063657A2
    • 2008-05-29
    • PCT/US2007/024310
    • 2007-11-21
    • QD VISION, INC.RAMPRASAD, DoraiCOX, MarshallMISIC, MeadSTECKEL, Jonathan, S.ROUSH, Caroline, J.KAZLAS, Peter, T.COE-SULLIVAN, SethBREEN, Craig
    • RAMPRASAD, DoraiCOX, MarshallMISIC, MeadSTECKEL, Jonathan, S.ROUSH, Caroline, J.KAZLAS, Peter, T.COE-SULLIVAN, SethBREEN, Craig
    • H01L33/00
    • C09K11/565B82Y20/00B82Y30/00H01L51/5012H05B33/14
    • Light emitting devices and devices with improved performance are disclosed. In one embodiment, a light emitting device includes an emissive material disposed between a first electrode, and a second electrode, wherein the emissive material comprises semiconductor nanocrystals capable of emitting light including a maximum peak emission in the blue region of the spectrum upon excitation, wherein the light emitting device can have a peak external quantum efficiency of at least about 1.0 percent. Also disclosed is a display including at least one light emitting device including an emissive material disposed between a first electrode, and a second electrode, wherein the at least one light emitting device can have a peak external quantum efficiency of at least about 1.0 percent. In another embodiment, a light emitting device includes an emissive material disposed between a first electrode and a second electrode. The emissive material comprises semiconductor nanocrystals capable of emitting light including a maximum peak emission in the blue region of the spectrum upon excitation. The device further includes a first spacer material disposed between the emissive material and the first electrode. In certain embodiments, the device further includes a first material capable of transporting charge disposed between the emissive material and the first electrode, wherein the first spacer material is disposed between the emissive material and the first electrode. In certain embodiments, for example, light emitting devices can have a maximum peak emission in a range from about 380nm to about 500nm. In certain embodiments, the light emitting device can have a maximum peak emission peak in the range from about 450nm to about 490nm. Displays including light emitting devices are also disclosed.
    • 公开了具有改进性能的发光器件和器件。 在一个实施例中,发光器件包括设置在第一电极和第二电极之间的发射材料,其中发射材料包括半导体纳米晶体,所述半导体纳米晶体在激发时能够发射包括光谱的蓝色区域中的最大峰值发射的光,其中 发光器件可以具有至少约1.0%的峰值外部量子效率。 还公开了包括至少一个发光器件的显示器,所述发光器件包括设置在第一电极和第二电极之间的发光材料,其中所述至少一个发光器件可以具有至少约1.0%的峰值外部量子效率。 在另一个实施例中,发光器件包括设置在第一电极和第二电极之间的发光材料。 发射材料包括能够在激发时发射光谱的蓝色区域中包括最大峰值发射的光的半导体纳米晶体。 该器件还包括设置在发光材料和第一电极之间的第一间隔件材料。 在某些实施例中,该器件还包括能够传输电荷的第一材料,该第一材料设置在发光材料和第一电极之间,其中第一间隔材料设置在发光材料和第一电极之间。 在某些实施例中,例如,发光器件可具有在约380nm至约500nm范围内的最大峰值发射。 在某些实施例中,发光器件可具有在约450nm至约490nm范围内的最大峰值发射峰值。 包括发光装置的显示器也被公开。
    • 7. 发明申请
    • DEVICE INCLUDING QUANTUM DOTS
    • 包括量子的设备
    • WO2012138410A1
    • 2012-10-11
    • PCT/US2012/023674
    • 2012-02-02
    • QD VISION, INC.COX, MarshallBREEN, CraigZHOU, ZhaoqunSTECKEL, Jonathan, S.
    • COX, MarshallBREEN, CraigZHOU, ZhaoqunSTECKEL, Jonathan, S.
    • H01L21/20
    • H01L33/04H01L21/02439H01L21/02491H01L21/02502H01L21/02521H01L21/0256H01L21/02601H01L33/005H01L33/0087H01L33/06H01L33/28H01L33/30H01L51/502
    • A method for making a device, the method comprising: depositing a layer comprising quantum dots over a first electrode, the quantum dots including ligands attached to the outer surfaces thereof; treating the surface of the deposited layer comprising quantum dots to remove the exposed ligands; and forming a device layer thereover. Also disclosed is a device made in accordance with the disclosed method. Another aspect of the invention relates to a device comprising a first electrode and a second electrode, and a layer comprising quantum dots between the two electrodes, the layer comprising quantum dots deposited from a dispersion that have been treated to remove exposed ligands after formation of the layer in the device. Another aspect of the invention relates to a device comprising a first electrode and a second electrode, a layer comprising a first inorganic semiconductor material disposed between the first and second electrodes, and a plurality of quantum dots disposed between the first and second electrodes, the outer surface of the quantum dots comprising a second inorganic semiconductor material, wherein the composition of the first inorganic semiconductor material and the second inorganic semiconductor material is the same (without regard to any ligands on the outer surface of the quantum dot).
    • 一种制造器件的方法,所述方法包括:在第一电极上沉积包含量子点的层,所述量子点包括附着于其外表面的配体; 处理包含量子点的沉积层的表面以除去暴露的配体; 并在其上形成器件层。 还公开了根据所公开的方法制造的装置。 本发明的另一方面涉及一种包括第一电极和第二电极以及在两个电极之间包含量子点的层,该层包括从分散体沉积的量子点,所述分散体在形成之后已被处理以除去暴露的配体 设备中的层。 本发明的另一方面涉及包括第一电极和第二电极的装置,包括设置在第一和第二电极之间的第一无机半导体材料的层和设置在第一和第二电极之间的多个量子点,外部 包括第二无机半导体材料的量子点的表面,其中第一无机半导体材料和第二无机半导体材料的组成相同(不考虑量子点的外表面上的任何配体)。
    • 8. 发明申请
    • FUNCTIONALIZED NANOPARTICLES AND METHOD
    • 功能性纳米颗粒和方法
    • WO2009035657A1
    • 2009-03-19
    • PCT/US2008/010651
    • 2008-09-12
    • QD VISION, INC.BREEN, CraigCOX, MarshallSTECKEL, Jonathan, S.
    • BREEN, CraigCOX, MarshallSTECKEL, Jonathan, S.
    • C07K1/00
    • A61K49/0067B82Y15/00G01N33/54353G01N33/588
    • A nanoparticle including an inorganic core comprising at least one metal and/or at least one semi-conductor compound comprising at least one metal includes a coating or shell disposed over at least a portion of a surface of the core. The coating can include one or more layers. Each layer of the coating can comprise a metal and/or at least one semiconductor compound. The nanoparticle further includes a ligand attached to a surface of the coating. The ligand is represented by the formula: X-Sp-Z, wherein X represents, e.g., a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, a phosphonic or arsonic acid group, a phosphinic or arsinic acid group, a phosphate or arsenate group, a phosphine or arsine oxide group; Sp represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; and Z represents: (i) a reactive group capable of communicating specific chemical properties to the nanocrystal as well as provide specific chemical reactivity to the surface of the nanocrystal, and/or (ii) a group that is cyclic, halogenated, or polar a-protic. In certain embodiments, at least two chemically distinct ligands are attached to an surface of the coating, wherein the at least two ligands (I and II) are represented by the formula: X-Sp-Z. In ligand (I) X represents a phosphonic, phosphinic, or phosphategroup and in ligand (II) X represents a primary or secondary amine, or an imidizole, or an amide; In both ligands (I) and (II) Sp, which can be the same or different in the two compounds, represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; Z, which can be the same or different in the two compounds, is a group chosen from among groups capable of communicating specific chemical properties to the nanoparticle as well as provide specific chemical reactivity to the surface of the nanoparticle. In preferred embodiments, the nanoparticle includes a core comprising a semiconductor material.
    • 包括包含至少一种金属和/或至少一种包含至少一种金属的半导体化合物的无机芯的纳米颗粒包括设置在芯的表面的至少一部分上的涂层或壳。 涂层可以包括一层或多层。 涂层的每个层可以包含金属和/或至少一种半导体化合物。 纳米颗粒还包括附着在涂层表面上的配体。 配体由下式表示:X-Sp-Z,其中X表示例如伯胺基,仲胺基,脲,硫脲,亚氨基咪唑基,酰胺基,膦酸或仲磺酸基 ,次膦酸或亚砷酸基,磷酸盐或砷酸盐基,膦或砷化胂基; Sp表示间隔基,例如可以允许电荷转移或绝缘组的基团; 并且Z表示:(i)能够与纳米晶体传递特定化学性质的反应性基团,并且提供对纳米晶体的表面的特定的化学反应性,和/或(ii)环状,卤化的或极性的基团 -protic。 在某些实施方案中,至少两个化学上不同的配体连接到涂层的表面,其中至少两个配体(I和II)由下式表示:X-Sp-Z。 在配体(I)中,X表示膦酸,次膦酸或膦酸酯基团,在配位体(II)中,X表示伯胺或仲胺,或亚氨基咪唑或酰胺; 在两种化合物中可以相同或不同的配体(I)和(II)Sp中,表示间隔基团,例如能够允许电荷转移或绝缘基团的基团; Z可以在两种化合物中相同或不同,是选自能够与纳米颗粒通信特定化学性质的基团以及为纳米颗粒的表面提供具体的化学反应性的基团。 在优选实施方案中,纳米颗粒包括包含半导体材料的芯。
    • 10. 发明申请
    • DEVICES INCLUDING QUANTUM DOTS AND METHOD
    • 包括量子和方法的设备
    • WO2012138409A2
    • 2012-10-11
    • PCT/US2012/023671
    • 2012-02-02
    • QD VISION, INC.BREEN, Craig
    • BREEN, Craig
    • H01B13/00H01B5/14H01B1/02F21Y101/02
    • H01L33/06H01L51/502H01L51/5056H01L51/5072
    • A method for preparing a device, the method comprising: forming a first device layer over a first electrode, the layer comprising a metal oxide formed from a sol-gel composition that does not generate acidic by-products, and forming a second electrode over the first device layer, wherein the method further includes forming a layer comprising quantum dots over the fust electrode before or after formation of the first device layer. Also disclosed is a device comprising a first device layer formed over a first electrode, the first device layer comprising a metal oxide formed by sol-gel processing that does not include acidic by-products, a second electrode over the first device layer, and a layer comprising quantum dots disposed between the first device layer and one of the two electrodes. A device prepared by the method is also disclosed.
    • 一种制备器件的方法,所述方法包括:在第一电极上形成第一器件层,所述第一器件层包含由不产生酸性副产物的溶胶 - 凝胶组合物形成的金属氧化物,以及在第 第一器件层,其中所述方法还包括在形成所述第一器件层之前或之后,在所述固体电极上形成包含量子点的层。 还公开了一种包括形成在第一电极上的第一器件层的器件,所述第一器件层包括由不包含酸性副产物的溶胶 - 凝胶加工形成的金属氧化物,第一器件层上的第二电极和 层包括设置在第一器件层和两个电极中的一个之间的量子点。 还公开了通过该方法制备的器件。