公开(公告)号：US07801687B1

公开(公告)日：2010-09-21

申请号：US11178079

申请日：2005-07-08

Applicant: Jing Li ,  Meyya Meyyappan

Inventor： Jing Li ,  Meyya Meyyappan

IPC: G01N31/00

CPC classification number: G01N27/127 ,  Y10S977/92 ,  Y10S977/921 ,  Y10S977/922 ,  Y10S977/938

Abstract: Methods for using modified single wall carbon nanotubes (“SWCNTs”) to detect presence and/or concentration of a gas component, such as a halogen (e.g., Cl2), hydrogen halides (e.g., HCl), a hydrocarbon (e.g., CnH2n+2), an alcohol, an aldehyde or a ketone, to which an unmodified SWCNT is substantially non-reactive. In a first embodiment, a connected network of SWCNTs is coated with a selected polymer, such as chlorosulfonated polyethylene, hydroxypropyl cellulose, polystyrene and/or polyvinylalcohol, and change in an electrical parameter or response value (e.g., conductance, current, voltage difference or resistance) of the coated versus uncoated SWCNT networks is analyzed. In a second embodiment, the network is doped with a transition element, such as Pd, Pt, Rh, Ir, Ru, Os and/or Au, and change in an electrical parameter value is again analyzed. The parameter change value depends monotonically, not necessarily linearly, upon concentration of the gas component. Two general algorithms are presented for estimating concentration value(s), or upper or lower concentration bounds on such values, from measured differences of response values.

Abstract translation: 使用改性单壁碳纳米管（“SWCNT”）检测气体组分如卤素（例如Cl 2），卤化氢（例如HCl），烃（例如CnH2n +）的存在和/或浓度的方法， 2），醇，醛或酮，未改性的SWCNT基本上不反应。 在第一实施例中，SWCNT的连接网络被涂覆有所选择的聚合物，例如氯磺化聚乙烯，羟丙基纤维素，聚苯乙烯和/或聚乙烯醇，并且改变电参数或响应值（例如，电导率，电流，电压差或 电阻）的涂层与未涂层的SWCNT网络进行了分析。 在第二实施例中，网络掺杂有诸如Pd，Pt，Rh，Ir，Ru，Os和/或Au的过渡元素，并再次分析电参数值的变化。 当气体组分浓度时，参数变化值单调地取决于不一定是线性的。 提供两种通用算法，用于根据测量的响应值差异来估计浓度值，或者这些值的上限或下限浓度范围。

公开(公告)号：US07784531B1

公开(公告)日：2010-08-31

申请号：US11900131

申请日：2007-08-27

Applicant: Jun Li ,  Meyya Meyyappan ,  Carlos Dangelo

Inventor： Jun Li ,  Meyya Meyyappan ,  Carlos Dangelo

IPC: F28F13/00

CPC classification number: H01L23/373 ,  B82Y10/00 ,  B82Y30/00 ,  H01L2224/16 ,  H01L2224/73253 ,  H01L2924/01019 ,  H01L2924/01046 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01322 ,  H01L2924/15312

Abstract: A method for providing for thermal conduction using an array of carbon nanotubes (CNTs). An array of vertically oriented CNTs is grown on a substrate having high thermal conductivity, and interstitial regions between adjacent CNTs in the array are partly or wholly filled with a filler material having a high thermal conductivity so that at least one end of each CNT is exposed. The exposed end of each CNT is pressed against a surface of an object from which heat is to be removed. The CNT-filler composite adjacent to the substrate provides improved mechanical strength to anchor CNTs in place and also serves as a heat spreader to improve diffusion of heat flux from the smaller volume (CNTs) to a larger heat sink.

Abstract translation: 一种使用碳纳米管阵列（CNT）提供热传导的方法。 在具有高导热性的衬底上生长垂直取向的CNT的阵列，并且阵列中相邻的CNT之间的间隙区域部分地或全部地填充有具有高热导率的填充材料，使得每个CNT的至少一个端部暴露 。 每个CNT的暴露端被压靠在要从其去除热量的物体的表面上。 与衬底相邻的CNT-填料复合物提供了改善的机械强度，以将CNT锚定在适当位置，并且还用作散热器以改善热通量从较小体积（CNT）到更大的散热器的扩散。

公开(公告)号：US07767270B1

公开(公告)日：2010-08-03

申请号：US11387503

申请日：2006-03-22

Applicant: Bishun N. Khare ,  Meyya Meyyappan

Inventor： Bishun N. Khare ,  Meyya Meyyappan

IPC: H05H1/24

CPC classification number: B82Y40/00 ,  B82Y30/00 ,  C01B32/174 ,  Y10S427/102

Abstract: Method and system for functionalizing a collection of carbon nanotubes (CNTs). A selected precursor gas (e.g., H2 or NH3 or NF3 or F2 or CF4 or CnHm) is irradiated to provide a cold plasma of selected target particles, such as atomic H or F, in a first chamber. The target particles are directed toward an array of CNTs located in a second chamber while suppressing transport of ultraviolet radiation to the second chamber. A CNT array is functionalized with the target particles, at or below room temperature, to a point of saturation, in an exposure time interval no longer than about 30 sec. The predominant species that are deposited on the CNT array vary with the distance d measured along a path from the precursor gas to the CNT array; two or three different predominant species can be deposited on a CNT array for distances d=d1 and d=d2>d1 and d=d3>d2.

Abstract translation: 用于功能化碳纳米管（CNT）集合的方法和系统。 照射所选择的前体气体（例如，H2或NH3或NF3或F2或CF4或CnHm）以在第一室中提供所选择的靶颗粒（例如原子H或F）的冷等离子体。 目标颗粒指向位于第二室中的CNT阵列，同时抑制紫外线辐射传送到第二室。 在不超过约30秒的曝光时间间隔内，CNT阵列在目标颗粒处于或低于室温下功能化到饱和点。 沉积在CNT阵列上的主要物种随着沿着从前体气体到CNT阵列的路径测量的距离d而变化; 两个或三个不同的主要物种可以沉积在CNT阵列上以达到距离d = d1和d = d2> d1和d = d3> d2。

公开(公告)号：US20110189500A1

公开(公告)日：2011-08-04

申请号：US12443864

申请日：2007-10-04

Applicant: Arun Majumdar ,  Tao Tong ,  Yang Zhao ,  Lance Delzeit ,  Ali Kashani ,  Meyya Meyyappan

Inventor： Arun Majumdar ,  Tao Tong ,  Yang Zhao ,  Lance Delzeit ,  Ali Kashani ,  Meyya Meyyappan

IPC: F28F7/00 ,  B32B15/04 ,  B32B7/00 ,  B32B9/00 ,  B32B37/02 ,  B32B37/14 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: H01L23/373 ,  F28F13/00 ,  F28F2013/008 ,  H01L23/3735 ,  H01L2924/0002 ,  Y10T156/10 ,  Y10T428/12549 ,  Y10T428/12597 ,  Y10T428/24174 ,  Y10T428/265 ,  Y10T428/30 ,  Y10T428/31678 ,  H01L2924/00

Abstract: Carbon nanotube (CNT) arrays can be used as a thermal interface materials (TIMs). Using a phase sensitive transient thermo-reflectance (PSTTR) technique, the thermal conductance of the two interfaces on either side of the CNT arrays can be measured. The physically bonded interface has a conductance ˜105 W/m2-K and is the dominant resistance. Also by bonding CNTs to target surfaces using indium, it can be demonstrated that the conductance can be increased to ˜106 W/m2-K making it attractive as a thermal interface material (TIM).

Abstract translation: 碳纳米管（CNT）阵列可用作热界面材料（TIM）。 使用相敏瞬态热反射（PSTTR）技术，可以测量CNT阵列任一侧上两个界面的导热性。 物理键合界面电导率为〜105 W / m2-K，为主导电阻。 也可以通过使用铟将CNT粘合到靶表面，可以证明电导率可以提高到〜106W / m 2 -K，使其作为热界面材料（TIM）具有吸引力。

公开(公告)号：US07438885B1

公开(公告)日：2008-10-21

申请号：US10891570

申请日：2004-07-15

Applicant: Sudipta Seal ,  Suresh C. Kuiry ,  Debasis Bera ,  Meyya Meyyappan ,  Matthew Luke McCutchen

Inventor： Sudipta Seal ,  Suresh C. Kuiry ,  Debasis Bera ,  Meyya Meyyappan ,  Matthew Luke McCutchen

IPC: D01F9/12

CPC classification number: B82Y40/00 ,  B82Y30/00 ,  C01B32/16 ,  C01B2202/02 ,  C01B2202/06 ,  C01B2202/36 ,  Y10S977/846

Abstract: A novel method for simultaneously forming and filling and decorating carbon nanotubes with palladium nanoparticles is disclosed. Synthesis involves preparing a palladium chloride (PdCl2) solution in a container, having two graphite electrodes, then immersing the graphite electrode assembly, into the PdCl2 solution; connecting the graphite electrodes to a direct current power supply; bringing the electrodes into contact with each other to strike an arc; separating the electrodes to sustain the arc inside the solution; putting the container with electrode assembly in a water-cooled bath; and collecting Pd-nanoparticles encapsulated in carbon nanotubes and carbon nanotubes decorated with Pd-nanoparticles. The temperature at the site of the arc-discharge is greater than 3000° C. At these temperatures, the palladium is ionized into nanoparticles and the graphite electrodes generate layers of graphene (carbon), which roll away from the anode and encapsulate or entrap the Pd-nanoparticles. The unique nanotube structures have significant commercial potential as gas sensors or as a means for hydrogen storage.

Abstract translation: 公开了一种用钯纳米颗粒同时形成和填充和装饰碳纳米管的新方法。 合成包括在容器中制备氯化钯（PdCl 2/2）溶液，其具有两个石墨电极，然后将石墨电极组件浸入到PdCl 2溶液中; 将石墨电极连接到直流电源; 使电极彼此接触以产生电弧; 分离电极以维持溶液内的电弧; 将容器与电极组件放在水冷浴中; 并收集封装在碳纳米管中的Pd-纳米颗粒和用Pd-纳米颗粒装饰的碳纳米管。 电弧放电现场的温度大于3000℃。在这些温度下，钯离子化成纳米颗粒，石墨电极产生石墨烯层（碳），其从阳极卷起并封闭或截留 钯纳米粒子。 独特的纳米管结构作为气体传感器或作为氢存储的手段具有显着的商业潜力。

公开(公告)号：US07273095B2

公开(公告)日：2007-09-25

申请号：US10825795

申请日：2004-04-13

Applicant: Jun Li ,  Meyya Meyyappan

Inventor： Jun Li ,  Meyya Meyyappan

IPC: F28F13/00

CPC classification number: H01L23/373 ,  B82Y10/00 ,  B82Y30/00 ,  H01L2224/16 ,  H01L2224/73253 ,  H01L2924/01019 ,  H01L2924/01046 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01322 ,  H01L2924/15312

Abstract: A method for providing for thermal conduction using an array of carbon nanotubes (CNTs). An array of vertically oriented CNTs is grown on a substrate having high thermal conductivity, and interstitial regions between adjacent CNTs in the array are partly or wholly filled with a filler material having a high thermal conductivity so that at least one end of each CNT is exposed. The exposed end of each CNT is pressed against a surface of an object from which heat is to be removed. The CNT-filler composite adjacent to the substrate provides improved mechanical strength to anchor CNTs in place and also serves as a heat spreader to improve diffusion of heat flux from the smaller volume (CNTs) to a larger heat sink.

Abstract translation: 一种使用碳纳米管阵列（CNT）提供热传导的方法。 在具有高导热性的衬底上生长垂直取向的CNT的阵列，并且阵列中相邻的CNT之间的间隙区域部分地或全部地填充有具有高导热性的填充材料，使得每个CNT的至少一端被暴露 。 每个CNT的暴露端被压靠在要从其去除热量的物体的表面上。 与衬底相邻的CNT-填料复合物提供了改善的机械强度，以将CNT锚定在适当位置，并且还用作散热器以改善热通量从较小体积（CNT）到更大的散热器的扩散。

公开(公告)号：US07109581B2

公开(公告)日：2006-09-19

申请号：US10925824

申请日：2004-08-24

Applicant: Carlos Dangelo ,  Meyya Meyyappan ,  Jun Li

Inventor： Carlos Dangelo ,  Meyya Meyyappan ,  Jun Li

IPC: H01L23/34

CPC classification number: H01L23/473 ,  B82Y10/00 ,  H01L23/373 ,  H01L25/0652 ,  H01L2224/16 ,  H01L2224/73253 ,  H01L2924/01019 ,  H01L2924/01057 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01322 ,  H01L2924/10253 ,  Y10S977/742 ,  Y10S977/762 ,  Y10S977/763 ,  H01L2924/00

Abstract: Heat sink structures employing carbon nanotube or nanowire arrays to reduce the thermal interface resistance between an integrated circuit chip and the heat sink are disclosed. Carbon nanotube arrays are combined with a thermally conductive metal filler disposed between the nanotubes. This structure produces a thermal interface with high axial and lateral thermal conductivities.

Abstract translation: 公开了使用碳纳米管或纳米线阵列来降低集成电路芯片和散热片之间的热界面电阻的散热结构。 碳纳米管阵列与布置在纳米管之间的导热金属填料结合。 该结构产生具有高轴向和横向热导率的热界面。

公开(公告)号：US07094679B1

公开(公告)日：2006-08-22

申请号：US10390254

申请日：2003-03-11

Applicant: Jun Li ,  Meyya Meyyappan

Inventor： Jun Li ,  Meyya Meyyappan

IPC: H01L21/4763 ,  H01L21/302

CPC classification number: H01L21/76885 ,  H01L23/53276 ,  H01L2221/1094 ,  H01L2924/0002 ,  Y10S977/842 ,  Y10S977/843 ,  H01L2924/00

Abstract: Method and system for fabricating an electrical interconnect capable of supporting very high current densities (106–1010 Amps/cm2), using an array of one or more carbon nanotubes (CNTs). The CNT array is grown in a selected spaced apart pattern, preferably with multi-wall CNTs, and a selected insulating material, such as SiOw or SiuNv, is deposited using CVD to encapsulate each CNT in the array. An exposed surface of the insulating material is planarized to provide one or more exposed electrical contacts for one or more CNTs.

Abstract translation: 用于制造能够支持非常高的电流密度（10 -6至10 10 Amps / cm 2）的电互连的方法和系统，使用 一个或多个碳纳米管（CNT）的阵列。 CNT阵列以选择的间隔开的图案生长，优选地使用多壁CNT，并且选择的绝缘材料，例如SiO 2或Si N 使用CVD沉积每个CNT以阵列中的每一个CNT。 绝缘材料的暴露表面被平坦化以为一个或多个CNT提供一个或多个暴露的电接触。

公开(公告)号：US07939734B1

公开(公告)日：2011-05-10

申请号：US10873996

申请日：2004-06-14

Applicant: Jun Li ,  Meyya Meyyappan ,  Alan M. Cassell

Inventor： Jun Li ,  Meyya Meyyappan ,  Alan M. Cassell

IPC: G01F1/64 ,  G01N27/26 ,  G01N33/543 ,  G01N33/553 ,  G01N33/53 ,  G01R31/26 ,  C12Q1/00 ,  C12M1/00 ,  C12M1/34

CPC classification number: G01N33/54373 ,  G01N27/3277 ,  Y10S436/806 ,  Y10S977/702 ,  Y10S977/742 ,  Y10S977/745 ,  Y10S977/746 ,  Y10S977/789 ,  Y10S977/904 ,  Y10S977/932 ,  Y10S977/953

Abstract: Method and system for detecting presence of biomolecules in a selected subset, or in each of several selected subsets, in a fluid. Each of an array of two or more carbon nanotubes (“CNTs”) is connected at a first CNT end to one or more electronics devices, each of which senses a selected electrochemical signal that is generated when a target biomolecule in the selected subset becomes attached to a functionalized second end of the CNT, which is covalently bonded with a probe molecule. This approach indicates when target biomolecules in the selected subset are present and indicates presence or absence of target biomolecules in two or more selected subsets. Alternatively, presence of absence of an analyte can be detected.

Abstract translation: 用于检测流体中选定子集或几个选定子集中的每一个中生物分子的存在的方法和系统。 两个或多个碳纳米管（“CNT”）的阵列中的每一个在第一CNT端连接到一个或多个电子器件，每个电子器件感测当所选子集中的靶生物分子附着时产生的所选电化学信号 涉及与探针分子共价结合的CNT的官能化第二末端。 该方法表明所选子集中的目标生物分子存在并且指示在两个或更多个选定子集中存在或不存在靶生物分子。 或者，可以检测到不存在分析物。

公开(公告)号：US07623972B1

公开(公告)日：2009-11-24

申请号：US11591630

申请日：2006-10-31

Applicant: Jing Li ,  Meyya Meyyappan ,  Yijiang Lu

Inventor： Jing Li ,  Meyya Meyyappan ,  Yijiang Lu

IPC: G01N31/00 ,  G01N27/00 ,  G06F19/00

CPC classification number: G01N33/0034 ,  B82Y15/00 ,  G01N27/128 ,  Y10S977/953 ,  Y10S977/957

Abstract: Methods and systems for determining if one or more target molecules are present in a gas, by exposing a functionalized carbon nanostructure (CNS) to the gas and measuring an electrical parameter value EPV(n) associated with each of N CNS sub-arrays. In a first embodiment, a most-probable concentration value C(opt) is estimated, and an error value, depending upon differences between the measured values EPV(n) and corresponding values EPV(n;C(opt)) is computed. If the error value is less than a first error threshold value, the system interprets this as indicating that the target molecule is present in a concentration C≈C(opt). A second embodiment uses extensive statistical and vector space analysis to estimate target molecule concentration.

Abstract translation: 通过将官能化碳纳米结构（CNS）暴露于气体并测量与N CNS子阵列中的每一个相关联的电参数值EPV（n）来确定气体中是否存在一种或多种靶分子的方法和系统。 在第一实施例中，估计最可能的浓度值C（opt），并且根据测量值EPV（n）和对应值EPV（n; C（opt））之间的差异来计算误差值。 如果误差值小于第一误差阈值，则系统将其解释为指示靶分子以浓度C≈C（opt）存在。 第二个实施例使用广泛的统计和矢量空间分析来估计靶分子浓度。