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    • 1. 发明申请
    • METAL TELLURIDE NANOCRYSTALS AND SYNTHESIS THEREOF
    • 金属陶瓷纳米晶及其合成
    • US20080036101A1
    • 2008-02-14
    • US11464265
    • 2006-08-14
    • Qiangfeng XiaoYunfeng LuMinjuan Zhang
    • Qiangfeng XiaoYunfeng LuMinjuan Zhang
    • H01L21/00
    • C01B19/007B82Y30/00C01B19/002C01P2002/72C01P2004/04C01P2004/64C04B35/547C04B35/6263C04B35/6325C04B35/636C04B35/6455C04B2235/3293C04B2235/3296C04B2235/3298C04B2235/449C04B2235/604C04B2235/6581C04B2235/661C04B2235/77C04B2235/781
    • A process for synthesizing a metal telluride is provided that includes the dissolution of a metal precursor in a solvent containing a ligand to form a metal-ligand complex soluble in the solvent. The metal-ligand complex is then reacted with a telluride-containing reagent to form metal telluride domains having a mean linear dimension of from 2 to 40 nanometers. NaHTe represents a well-suited telluride reagent. A composition is provided that includes a plurality of metal telluride crystalline domains (PbTe)1-x-y(SnTe)x(Bi2Te3)y   (I) having a mean linear dimension of from 2 to 40 nanometers inclusive where x is between 0 and 1 inclusive and y is between 0 and 1 inclusive with the proviso that x+y is less than or equal to 1. Each of the metal telluride crystalline domains has a surface passivated with a saccharide moiety or a polydentate carboxylate. A densified mass having a density of greater than 95% of the theoretical density includes a plurality of lead telluride, tin telluride, bismuth telluride, or a combination thereof of domains having a mean linear dimension of from 2 to 40 nanometers inclusive that have been subjected to hot isotactic pressing.
    • 提供了合成金属碲化物的方法,其包括将金属前体溶解在含有配体的溶剂中以形成可溶于溶剂的金属 - 配体络合物。 然后将金属 - 配体络合物与含碲化物的试剂反应以形成平均直线尺寸为2-40纳米的金属碲化物畴。 NaHTe代表一种非常适合的碲化物试剂。 提供了一种组合物,其包括多个金属碲化物晶畴<?in-line-formula description =“In-line Formulas”end =“lead”→>(PbTe)1-xy )(I)<βin-line-formula description =“(”1“)< 平均线性尺寸为2至40纳米,其中x在0和1之间,其中x在0和1之间,其中y在0和1之间,其中条件是x + y小于 或等于1.金属碲化物结晶域中的每一个具有用糖部分或多齿羧酸酯钝化的表面。 具有大于理论密度的95%的密度的致密物质包括多个引线碲化物,碲化锡,碲化铋或其具有平均线性尺寸为2至40纳米的畴的组合,其已经经受 到热等压挤压。
    • 2. 发明申请
    • Nanostructured bulk thermoelectric material
    • 纳米结构体热电材料
    • US20060118158A1
    • 2006-06-08
    • US11120731
    • 2005-05-03
    • Minjuan ZhangYunfeng Lu
    • Minjuan ZhangYunfeng Lu
    • H01L35/34H01L35/30H01L35/28H01L37/00
    • H01L35/34C02F1/02C02F2103/02H01L35/16H01L35/26
    • A thermoelectric material comprises two or more components, at least one of which is a thermoelectric material. The first component is nanostructured, for example as an electrically conducting nanostructured network, and can include nanowires, nanoparticles, or other nanostructures of the first component. The second component may comprise an electrical insulator, such as an inorganic oxide, other electrical insulator, other low thermal conductivity material, voids, air-filled gaps, and the like. Additional components may be included, for example to improve mechanical properties. Quantum size effects within the nanostructured first component can advantageously modify the thermoelectric properties of the first component. In other examples, the second component may be a thermoelectric material, and additional components may be included.
    • 热电材料包括两种或多种组分,其中至少一种是热电材料。 第一组分是纳米结构的,例如作为导电纳米结构网络,并且可以包括第一组分的纳米线,纳米颗粒或其他纳米结构。 第二部件可以包括电绝缘体,例如无机氧化物,其它电绝缘体,其它低导热材料,空隙,充满空气的间隙等。 可以包括另外的组分,例如以改善机械性能。 在纳米结构化的第一组分内的量子尺寸效应可以有利地改变第一组分的热电性质。 在其它实例中,第二组分可以是热电材料,并且可以包括另外的组分。
    • 4. 发明申请
    • Homogeneous thermoelectric nanocomposite using core-shell nanoparticles
    • 使用核 - 壳纳米粒子的均匀热电纳米复合材料
    • US20080087314A1
    • 2008-04-17
    • US11549203
    • 2006-10-13
    • Qiangfeng XiaoYunfeng LuJunwei WangMinjuan Zhang
    • Qiangfeng XiaoYunfeng LuJunwei WangMinjuan Zhang
    • H01L35/34H01L35/28
    • H01L35/26H01L35/16H01L35/34
    • A thermoelectric material comprises core-shell particles having a core formed from a core material and a shell formed from a shell material. In representative examples, the shell material is a material showing an appreciable thermoelectric effect in bulk. The core material preferably has a lower thermal conductivity than the shell material. In representative examples, the core material is an inorganic oxide such as silica or alumina, and the shell material is a chalcogenide semiconductor such as a telluride, for example bismuth telluride. A thermoelectric material including such core-shell particles may have an improved thermoelectric figure of merit compared with a bulk sample of the shell material alone. Embodiments of the invention further include thermoelectric devices using such thermoelectric materials, and preparation techniques. The use of core-shell nanoparticles allows highly uniform nanocomposites to be formed, and embodiments of the invention also includes other materials and devices using core-shell particles.
    • 热电材料包括由芯材形成的芯和由壳材料形成的壳的核 - 壳颗粒。 在代表性实例中,外壳材料是显示出大量可观的热电效应的材料。 核心材料优选具有比壳材料低的热导率。 在代表性实例中,核心材料是无机氧化物如二氧化硅或氧化铝,外壳材料是硫属元素半导体,例如碲化物,例如碲化铋。 包含这种核 - 壳颗粒的热电材料与单独的壳材料的块状样品相比可以具有改进的热电品质因数。 本发明的实施例还包括使用这种热电材料的热电装置和制备技术。 使用核 - 壳纳米粒子允许形成高度均匀的纳米复合材料,本发明的实施方案还包括使用核 - 壳颗粒的其它材料和装置。
    • 5. 发明授权
    • Nanostructured bulk thermoelectric material
    • 纳米结构体热电材料
    • US07309830B2
    • 2007-12-18
    • US11120731
    • 2005-05-03
    • Minjuan ZhangYunfeng Lu
    • Minjuan ZhangYunfeng Lu
    • H01L35/26
    • H01L35/34C02F1/02C02F2103/02H01L35/16H01L35/26
    • A thermoelectric material comprises two or more components, at least one of which is a thermoelectric material. The first component is nanostructured, for example as an electrically conducting nanostructured network, and can include nanowires, nanoparticles, or other nanostructures of the first component. The second component may comprise an electrical insulator, such as an inorganic oxide, other electrical insulator, other low thermal conductivity material, voids, air-filled gaps, and the like. Additional components may be included, for example to improve mechanical properties. Quantum size effects within the nanostructured first component can advantageously modify the thermoelectric properties of the first component. In other examples, the second component may be a thermoelectric material, and additional components may be included.
    • 热电材料包括两种或多种组分,其中至少一种是热电材料。 第一组分是纳米结构的,例如作为导电纳米结构网络,并且可以包括第一组分的纳米线,纳米颗粒或其他纳米结构。 第二部件可以包括电绝缘体,例如无机氧化物,其它电绝缘体,其它低导热材料,空隙,充满空气的间隙等。 可以包括另外的组分,例如以改善机械性能。 在纳米结构化的第一组分内的量子尺寸效应可以有利地改变第一组分的热电性质。 在其它实例中,第二组分可以是热电材料,并且可以包括另外的组分。
    • 8. 发明授权
    • Homogeneous thermoelectric nanocomposite using core-shell nanoparticles
    • 使用核 - 壳纳米粒子的均匀热电纳米复合材料
    • US08044292B2
    • 2011-10-25
    • US11549203
    • 2006-10-13
    • Qiangfeng XiaoYunfeng LuJunwei WangMinjuan Zhang
    • Qiangfeng XiaoYunfeng LuJunwei WangMinjuan Zhang
    • H01L35/34H01L35/28
    • H01L35/26H01L35/16H01L35/34
    • A thermoelectric material comprises core-shell particles having a core formed from a core material and a shell formed from a shell material. In representative examples, the shell material is a material showing an appreciable thermoelectric effect in bulk. The core material preferably has a lower thermal conductivity than the shell material. In representative examples, the core material is an inorganic oxide such as silica or alumina, and the shell material is a chalcogenide semiconductor such as a telluride, for example bismuth telluride. A thermoelectric material including such core-shell particles may have an improved thermoelectric figure of merit compared with a bulk sample of the shell material alone. Embodiments of the invention further include thermoelectric devices using such thermoelectric materials, and preparation techniques. The use of core-shell nanoparticles allows highly uniform nanocomposites to be formed, and embodiments of the invention also includes other materials and devices using core-shell particles.
    • 热电材料包括由芯材形成的芯和由壳材料形成的壳的核 - 壳颗粒。 在代表性实例中,外壳材料是显示出大量可观的热电效应的材料。 核心材料优选具有比壳材料低的热导率。 在代表性实例中,核心材料是无机氧化物如二氧化硅或氧化铝,外壳材料是硫属元素半导体,例如碲化物,例如碲化铋。 包含这种核 - 壳颗粒的热电材料与单独的壳材料的块状样品相比可以具有改进的热电品质因数。 本发明的实施例还包括使用这种热电材料的热电装置和制备技术。 使用核 - 壳纳米粒子允许形成高度均匀的纳米复合材料,本发明的实施方案还包括使用核 - 壳颗粒的其它材料和装置。
    • 9. 发明授权
    • Metal telluride nanocrystals and synthesis thereof
    • 金属碲化物纳米晶体及其合成
    • US07790137B2
    • 2010-09-07
    • US11464265
    • 2006-08-14
    • Qiangfeng XiaoYunfeng LuMinjuan Zhang
    • Qiangfeng XiaoYunfeng LuMinjuan Zhang
    • C01B19/04
    • C01B19/007B82Y30/00C01B19/002C01P2002/72C01P2004/04C01P2004/64C04B35/547C04B35/6263C04B35/6325C04B35/636C04B35/6455C04B2235/3293C04B2235/3296C04B2235/3298C04B2235/449C04B2235/604C04B2235/6581C04B2235/661C04B2235/77C04B2235/781
    • A process for synthesizing a metal telluride is provided that includes the dissolution of a metal precursor in a solvent containing a ligand to form a metal-ligand complex soluble in the solvent. The metal-ligand complex is then reacted with a telluride-containing reagent to form metal telluride domains having a mean linear dimension of from 2 to 40 nanometers. NaHTe represents a well-suited telluride reagent. A composition is provided that includes a plurality of metal telluride crystalline domains (PbTe)1-x-y(SnTe)x(Bi2Te3)y  (I) having a mean linear dimension of from 2 to 40 nanometers inclusive where x is between 0 and 1 inclusive and y is between 0 and 1 inclusive with the proviso that x+y is less than or equal to 1. Each of the metal telluride crystalline domains has a surface passivated with a saccharide moiety or a polydentate carboxylate. A densified mass having a density of greater than 95% of the theoretical density includes a plurality of lead telluride, tin telluride, bismuth telluride, or a combination thereof of domains having a mean linear dimension of from 2 to 40 nanometers inclusive that have been subjected to hot isotactic pressing.
    • 提供了合成金属碲化物的方法,其包括将金属前体溶解在含有配体的溶剂中以形成可溶于溶剂的金属 - 配体络合物。 然后将金属 - 配体络合物与含碲化物的试剂反应以形成平均直线尺寸为2-40纳米的金属碲化物畴。 NaHTe代表一种非常适合的碲化物试剂。 提供一种组合物,其包含多个金属碲化物晶体结构域(PbTe)1-xy(SnTe)x(Bi 2 Te 3)y(I),其平均直线尺寸为2至40纳米,其中x在0和1之间 并且y在0和1之间,其中x + y小于或等于1.每个金属碲化物结晶域具有用糖部分或多齿羧酸酯钝化的表面。 具有大于理论密度的95%的密度的致密物质包括多个引线碲化物,碲化锡,碲化铋或其具有平均线性尺寸为2至40纳米的畴的组合,其已经经受 到热等压挤压。