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1. 发明申请

US20140227477A1 Methods for Reducing Thermal Resistance of Carbon Nanotube Arrays or Sheets 审中-公开
标题翻译：降低碳纳米管阵列或片材热阻的方法
公开(公告)号：US20140227477A1
公开(公告)日：2014-08-14
申请号：US14345897
申请日：2012-09-21
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Virendra Singh , Thomas L. Bougher , John H. Taphouse
IPC分类号： H01L23/373 , C25D7/00
CPC分类号： H01L23/3735 , B82Y30/00 , C25D7/006 , H01L23/373 , H01L23/42 , H01L2924/0002 , Y10T428/24 , Y10T428/30 , H01L2924/00
摘要： Carbon nanotube (CNT) forests or sheets coated and/or bonded at room temperature with one or more coatings were measured to produce thermal resistances that are on par with conventional metallic solders. These results were achieved by reducing the high contact resistance at CNT tips and/or sidewalls, which has encumbered the development of high-performance thermal interface materials based on CNTs. Resistances as low as 4.9±0.3 mm2-K/W were achieved for the entire polymer-coated CNT interface structure.
摘要翻译：测量碳纳米管（CNT）森林或在室温下用一种或多种涂层涂覆和/或结合的片材，以产生与常规金属焊料相当的热阻。这些结果通过降低CNT尖端和/或侧壁处的高接触电阻来实现，这阻碍了基于CNT的高性能热界面材料的开发。对于整个聚合物涂覆的CNT界面结构，实现了低至4.9±0.3 mm2-K / W的电阻。

2. 发明授权

US10541363B2 Multilayer coatings formed on aligned arrays of carbon nanotubes 有权
公开(公告)号：US10541363B2
公开(公告)日：2020-01-21
申请号：US14434118
申请日：2013-10-21
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Asha Sharma , Virendra Singh
IPC分类号： H01L51/05 , H01L45/00 , H01L51/00 , B82Y10/00 , H01L31/0224 , H01L31/0216 , H01L31/0352 , H01L51/42 , H01L31/0392 , H01L31/108
摘要： Arrays containing carbon nanostructure-oxide-metal diodes, such as carbon nanotube (CNT)-oxide-metal diodes and methods of making and using thereof are described herein. In some embodiments, the arrays contain vertically aligned carbon nanostructures, such as multiwall carbon nanotubes (MWCNTs) coated with a conformal coating of a dielectric layer, such as a metal oxide. The tips of the carbon nano-structures are coated with a low work function metal, such as a calcium or aluminum to form a nanostructure-oxide-metal interface at the tips. The arrays can be used as rectenna at frequencies up to about 40 petahertz because of their intrinsically low capacitance. The arrays described herein produce high asymmetry and non-linearity at low turn on voltages down to 0.3 V and large current densities up to about 7,800 mA/cm2 and a rectification ratio of at least about 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, or 60.

3. 发明授权

US11315853B2 Methods for reducing thermal resistance of carbon nanotube arrays or sheets 有权
公开(公告)号：US11315853B2
公开(公告)日：2022-04-26
申请号：US16673407
申请日：2019-11-04
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Virendra Singh , Thomas L. Bougher , John H. Taphouse
IPC分类号： B32B9/00 , H01L23/373 , H01L23/42 , C25D7/00 , B82Y30/00
摘要： Carbon nanotube (CNT) forests or sheets coated and/or bonded at room temperature with one or more coatings were measured to produce thermal resistances that are on par with conventional metallic solders. These results were achieved by reducing the high contact resistance at CNT tips and/or sidewalls, which has encumbered the development of high-performance thermal interface materials based on CNTs. Resistances as low as 4.9±0.3 mm2-K/W were achieved for the entire polymer-coated CNT interface structure.

4. 发明申请

US20200251401A1 METHODS FOR REDUCING THERMAL RESISTANCE OF CARBON NANOTUBE ARRAYS OR SHEETS 审中-公开
公开(公告)号：US20200251401A1
公开(公告)日：2020-08-06
申请号：US16673407
申请日：2019-11-04
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Virendra Singh , Thomas L. Bougher , John H. Taphouse
IPC分类号： H01L23/373 , C25D7/00 , H01L23/42
摘要： Carbon nanotube (CNT) forests or sheets coated and/or bonded at room temperature with one or more coatings were measured to produce thermal resistances that are on par with conventional metallic solders. These results were achieved by reducing the high contact resistance at CNT tips and/or sidewalls, which has encumbered the development of high-performance thermal interface materials based on CNTs. Resistances as low as 4.9±0.3 mm2-K/W were achieved for the entire polymer-coated CNT interface structure.

5. 发明授权

US10724153B2 Polymer-based nanostructured materials with tunable properties and methods of making thereof 有权
公开(公告)号：US10724153B2
公开(公告)日：2020-07-28
申请号：US15317269
申请日：2015-06-11
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Thomas L. Bougher , Kyriaki Kalaitzidou , Virendra Singh , Matthew Smith
IPC分类号： D01F6/74 , D01D5/38 , H01L23/373 , H01L23/42 , B82Y30/00 , C25B9/06 , C25B11/02 , C25B11/04
摘要： Nano structured surfaces and bulk composite materials which exhibit tunable surface morphology, wettability, thermal conductivity, and total thermal resistance properties, and methods of fabrication and uses thereof are described herein. Arrays of vertically-aligned nanostructures produced via a template assisted fabrication approach using nanoporous templates, or alternatively, via an electropolymerization process are described. As a result, control over the surface morphology and wettability can be achieved using the selective template etching process. The composite materials also demonstrate tunable thermal and electrical properties based on the methods of their fabrication. The arrays of polymeric nanostructures are chemically, mechanically, and thermally robust and can serve as soft substrates with heat dissipation capability for use in the fabrication of thermal management materials, tunable wetting for microfluidic applications, and for use in heterojunction organic photovoltaic cells.

6. 发明授权

US10985313B2 Multilayer coatings formed on aligned arrays of carbon nanotubes 有权
公开(公告)号：US10985313B2
公开(公告)日：2021-04-20
申请号：US16738894
申请日：2020-01-09
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Asha Sharma , Virendra Singh
IPC分类号： H01L51/05 , H01L45/00 , H01L51/00 , B82Y10/00 , H01L31/0224 , H01L31/0216 , H01L31/0352 , H01L51/42 , H01L31/0392 , H01L31/108
摘要： Arrays containing carbon nanostructure-oxide-metal diodes, such as carbon nanotube (CNT)-oxide-metal diodes and methods of making and using thereof are described herein. In some embodiments, the arrays contain vertically aligned carbon nanostructures, such as multiwall carbon nanotubes (MWCNTs) coated with a conformal coating of a dielectric layer, such as a metal oxide. The tips of the carbon nanostructures are coated with a low work function metal, such as a calcium or aluminum to form a nanostructure-oxide-metal interface at the tips. The arrays can be used as rectenna at frequencies up to about 40 petahertz because of their intrinsically low capacitance. The arrays described herein produce high asymmetry and non-linearity at low turn on voltages down to 0.3 V and large current densities up to about 7,800 mA/cm2 and a rectification ratio of at least about 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, or 60.

7. 发明申请

US20200227631A1 MULTILAYER COATINGS FORMED ON ALIGNED ARRAYS OF CARBON NANOTUBES 审中-公开
公开(公告)号：US20200227631A1
公开(公告)日：2020-07-16
申请号：US16738894
申请日：2020-01-09
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Asha Sharma , Virendra Singh
IPC分类号： H01L45/00 , H01L51/00 , B82Y10/00 , H01L31/0224 , H01L51/05 , H01L31/0216 , H01L31/0352 , H01L51/42 , H01L31/0392 , H01L31/108
摘要： Arrays containing carbon nanostructure-oxide-metal diodes, such as carbon nanotube (CNT)-oxide-metal diodes and methods of making and using thereof are described herein. In some embodiments, the arrays contain vertically aligned carbon nanostructures, such as multiwall carbon nanotubes (MWCNTs) coated with a conformal coating of a dielectric layer, such as a metal oxide. The tips of the carbon nanostructures are coated with a low work function metal, such as a calcium or aluminum to form a nanostructure-oxide-metal interface at the tips. The arrays can be used as rectenna at frequencies up to about 40 petahertz because of their intrinsically low capacitance. The arrays described herein produce high asymmetry and non-linearity at low turn on voltages down to 0.3 V and large current densities up to about 7,800 mA/cm2 and a rectification ratio of at least about 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, or 60.

8. 发明授权

US10468327B2 Methods for reducing thermal resistance of carbon nanotube arrays or sheets 有权
公开(公告)号：US10468327B2
公开(公告)日：2019-11-05
申请号：US14345897
申请日：2012-09-21
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Virendra Singh , Thomas L. Bougher , John H. Taphouse
IPC分类号： B32B9/00 , H01L23/373 , H01L23/42 , C25D7/00 , B82Y30/00
摘要： Carbon nanotube (CNT) forests or sheets coated and/or bonded at room temperature with one or more coatings were measured to produce thermal resistances that are on par with conventional metallic solders. These results were achieved by reducing the high contact resistance at CNT tips and/or sidewalls, which has encumbered the development of high-performance thermal interface materials based on CNTs. Resistances as low as 4.9±0.3 mm2−K/W were achieved for the entire polymer-coated CNT interface structure.

9. 发明申请

US20180155854A1 POLYMER-BASED NANOSTRUCTURED MATERIALS WITH TUNABLE PROPERTIES AND METHODS OF MAKING THEREOF 审中-公开
公开(公告)号：US20180155854A1
公开(公告)日：2018-06-07
申请号：US15317269
申请日：2015-06-11
申请人： Georgia Tech Research Corporation
发明人： Baratunde Cola , Thomas L. Bougher , Kyriaki Kalaitzidou , Virendra Singh , Matthew Smith
IPC分类号： D01F6/74 , D01D5/38 , C25B11/04 , C25B11/02 , C25B9/06
摘要： Nano structured surfaces and bulk composite materials which exhibit tunable surface morphology, wettability, thermal conductivity, and total thermal resistance properties, and methods of fabrication and uses thereof are described herein. Arrays of vertically-aligned nanostructures produced via a template assisted fabrication approach using nanoporous templates, or alternatively, via an electropolymerization process are described. As a result, control over the surface morphology and wettability can be achieved using the selective template etching process. The composite materials also demonstrate tunable thermal and electrical properties based on the methods of their fabrication. The arrays of polymeric nanostructures are chemically, mechanically, and thermally robust and can serve as soft substrates with heat dissipation capability for use in the fabrication of thermal management materials, tunable wetting for microfluidic applications, and for use in heterojunction organic photovoltaic cells.

10. 发明申请

US20150311461A1 MULTILAYER COATINGS FORMED ON ALIGNED ARRAYS OF CARBON NANOTUBES 审中-公开
标题翻译：在碳纳米管对齐阵列上形成的多层涂层
公开(公告)号：US20150311461A1
公开(公告)日：2015-10-29
申请号：US14434118
申请日：2013-10-21
申请人： GEORGIA TECH RESEARCH CORPORATION
发明人： Baratunde Cola , Asha Sharma , Virendra Singh
IPC分类号： H01L51/05 , H01L51/00
摘要： Arrays containing carbon nanostructure-oxide-metal diodes, such as carbon nanotube (CNT)-oxide-metal diodes and methods of making and using thereof are described herein. In some embodiments, the arrays contain vertically aligned carbon nanostructures, such as multiwall carbon nanotubes (MWCNTs) coated with a conformal coating of a dielectric layer, such as a metal oxide. The tips of the carbon nano-structures are coated with a low work function metal, such as a calcium or aluminum to form a nanostructure-oxide-metal interface at the tips. The arrays can be used as rectenna at frequencies up to about 40 petahertz because of their intrinsically low capacitance. The arrays described herein produce high asymmetry and non-linearity at low turn on voltages down to 0.3 V and large current densities up to about 7,800 mA/cm2 and a rectification ratio of at least about 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, or 60.
摘要翻译：本文描述了包含碳纳米结构氧化物金属二极管的阵列，例如碳纳米管（CNT） - 氧化物 - 金属二极管及其制造和使用方法。在一些实施方案中，阵列包含垂直排列的碳纳米结构，例如涂覆有电介质层（例如金属氧化物）的保形涂层的多壁碳纳米管（MWCNT）。碳纳米结构的尖端涂覆有低功函数金属，例如钙或铝，以在尖端处形成纳米结构氧化物 - 金属界面。由于阵列本身具有较低的电容，因此阵列可以用作高达约40 peta赫兹频率的整流天线。本文描述的阵列在低至0.3V的低导通电压和高达约7800mA / cm 2的大电流密度下产生高不对称性和非线性，并且精馏比为至少约10,15,20,25,30,35 ，40,45,50,55或60。

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