公开(公告)号：EP2007844A2

公开(公告)日：2008-12-31

申请号：EP07753146.5

申请日：2007-03-14

Applicant: Nanogram Corporation

Inventor： CHIRUVOLU, Shivkumar ,  LI, Weidong ,  ALTMAN, Igor ,  DU, Hui, K. ,  KAMBE, Nobuyuki ,  MOSSO, Ronald, J.

IPC: C09K11/08

CPC classification number: C09K11/7774 ,  B82Y30/00 ,  C01F17/0025 ,  C01P2002/04 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/50 ,  C01P2004/64

Abstract: Collections of phosphor particles have achieved improved performance based on improved material properties, such as crystallinity. Display devices can be formed with these improved submicron phosphor particles. Improved processing methods contribute to the improved phosphor particles, which can have high crystallinity and a high degree of particle size uniformity. Dispersions and composites can be effectively formed from the powders of the submicron particle collections.

公开(公告)号：EP1886802A3

公开(公告)日：2008-07-30

申请号：EP07021923.3

申请日：2002-08-01

Applicant: NanoGram Corporation

Inventor： Kambe, Nobuyuki ,  Honecker, Christian, C. ,  Blum, Yigal Do ,  MacQueen, David, Brent

IPC: B32B13/04 ,  B32B27/34 ,  B32B27/36 ,  B32B27/40 ,  C08K3/08 ,  C08K3/18 ,  G02B1/04 ,  G02B6/12

CPC classification number: G02B6/1221 ,  B82Y20/00 ,  G02B6/1225 ,  G02F1/01 ,  G02F2202/32

Abstract: An optical device comprising a polymer-inorganic particle blend or composite.
The inorganic particles can be phosphorescent, have non-linear optical properties or have piezoelectrical properties.

公开(公告)号：EP1166286A1

公开(公告)日：2002-01-02

申请号：EP00917798.1

申请日：2000-03-08

Applicant: Nanogram Corporation

Inventor： REITZ, Hariklia, Dris ,  KUMAR, Sujeet ,  BI, Xiangxin ,  KAMBE, Nobuyuki

IPC: H01C7/10

CPC classification number: C01G9/03 ,  B82Y30/00 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/64 ,  C09C1/043 ,  C09K11/54 ,  H01C7/112

Abstract: A collection of zinc oxide nanoparticles have been produced by laser pyrolysis (300). The zinc oxide nanoparticles have average particle diameters of less than about 95 nm and a very narrow particle size distribution. The laser pyrolysis process is characterized by the production of a reactant stream within the reaction chamber, where the reactant stream includes a zinc precursor and other reactants. The zinc precursor can be delivered as an aerosol.

公开(公告)号：EP1129035A1

公开(公告)日：2001-09-05

申请号：EP99942084.7

申请日：1999-08-11

Applicant: Nanogram Corporation

Inventor： KUMAR, Sujeet ,  REITZ, Hariklia, Dris ,  BI, Xiangxin ,  KAMBE, Nobuyuki

IPC: C01G1/02 ,  B24D3/00 ,  C01B13/00 ,  C01F7/02

CPC classification number: C01F7/02 ,  B82Y30/00 ,  C01F7/30 ,  C01F7/306 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/52 ,  C01P2004/62 ,  C01P2004/64 ,  C09G1/02

Abstract: A collection of nanoparticles of aluminum oxide having a very narrow distribution of particle diameters are produced by laser pyrolysis. The distribution of particle diameters effectively does not have a tail and almost no particles have a diameter greater than about 4 times the average diameter. The pyrolysis is performed by pyrolyzing a molecular stream containing an aluminum precursor, an oxidizing agent and an infrared absorber.

公开(公告)号：EP1038326A1

公开(公告)日：2000-09-27

申请号：EP98960802.1

申请日：1998-12-07

Applicant: Nanogram Corporation

Inventor： KAMBE, Nobuyuki ,  DARDI, Peter, S.

IPC: H01L51/20 ,  H01L31/0236

CPC classification number: H01L51/4253 ,  B82Y10/00 ,  H01L31/02363 ,  H01L51/0038 ,  H01L51/0045 ,  H01L51/0046 ,  H01L51/424 ,  H01L51/447 ,  Y02E10/549

Abstract: Polymer based solar cells incorporate nanoscale carbon particles as electron acceptors. The nanoscale carbon particles can be appropriate carbon blacks, especially modified laser black. Conducting polymers are used in the solar cell as electron donors upon absorption of light. Preferred solar cell structures involve corrugation of the donor/acceptor composite material such that increased amounts of electricity can be produced for a given overall area of the colar cell.

公开(公告)号：EP1027819A1

公开(公告)日：2000-08-16

申请号：EP98956352.3

申请日：1998-10-29

Applicant: Nanogram Corporation

Inventor： KAMBE, Nobuyuki ,  BI, Xiangxin

IPC: H05K9/00

CPC classification number: H05K9/0083 ,  H01F1/36 ,  H01F1/37 ,  H05K9/0088 ,  Y10S428/924 ,  Y10S977/838

Abstract: Electromagnetic shielding material is formed from a shielding composition made with magnetic particles and a binder, where the magnetic particles have an average diameter less than about 1000 nm and are substantially crystalline. The magnetic particles can be formed from Fe2O3, Fe3O4, Fe3C, or Fe7C3. The shielding composition can be formed into a layer (500) or into composite particles (600). The binder (504) can be a metal or an electrically conducting polymer. A conducting layer (558) can be placed adjacent to the shielding composition. The shielding material can be used to protect sensitive electronic devices. Methods are described for forming iron oxide particles by laser pyrolysis.

公开(公告)号：EP1016149A1

公开(公告)日：2000-07-05

申请号：EP98935816.3

申请日：1998-07-20

Applicant: Nanogram Corporation

Inventor： BI, Xiangxin ,  KUMAR, Sujeet ,  GARDNER, James, T. ,  KAMBE, Nobuyuki

IPC: H01M4/48

CPC classification number: C01G31/02 ,  B82Y30/00 ,  C01P2002/02 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/64 ,  C01P2006/40 ,  H01M4/02 ,  H01M4/485 ,  H01M4/5825 ,  H01M4/622 ,  H01M4/623 ,  H01M10/0525 ,  H01M2004/021

Abstract: Vanadium oxide nanoparticles with different vanadium oxidation states and different crystal structures. The particles have a narrow distribution of particle diameters and unique properties that result from their small size and correspondingly large surface area. The particles are produced by laser pyrolysis, and can be further treated to change their properties, without destroying their nanoscale size. The stoichiometry and crystal structure can be varied by initial heating under mild conditions. The materials may be used as cathode active materials in high energy density batteries.

公开(公告)号：EP0907410A1

公开(公告)日：1999-04-14

申请号：EP98903934.0

申请日：1998-02-06

Applicant: Nanogram Corporation

Inventor： BI, Xiangxin ,  KAMBE, Nobuyuki

IPC: B01J12 ,  B01J19 ,  C01B31 ,  C09C1

CPC classification number: B82Y30/00 ,  B01J12/005 ,  B01J12/02 ,  B01J19/08 ,  B01J19/121 ,  C01B32/914 ,  C01P2004/64 ,  C09C1/48 ,  Y10S266/905 ,  Y10S977/773 ,  Y10S977/835 ,  Y10S977/838 ,  Y10S977/84

Abstract: An apparatus produces particles, preferably nanoparticles, from gas phase chemical reactions induced by a radiation beam. The radiation beam comprises preferably electromagnetic radiation or a laser beam. The apparatus includes a reaction chamber (102) with a window (242) for introducing the radiation and an elongated reactant inlet (164), and said reaction chamber is configured to conform generally to the elongated shape of the reactant inlet. Shielding gas may be introduced (196) to form a blanket of inert gas on both sides of the reactant stream to prevent reactive gases and product particles striking the chamber walls and the optical components. The apparatus may further comprise a pyrometer (302) to monitor the emission of reactants, a particle size analyser (400) and a computer (108). A feedback loop with a pressure sensor (30 4) may be used to maintain the desired pressure within the reaction chamber.

公开(公告)号：EP2654089A3

公开(公告)日：2015-08-12

申请号：EP13176866.5

申请日：2008-02-15

Applicant: Nanogram Corporation

Inventor： Hieslmair, Henry

IPC: H01L31/042 ,  H01L27/142 ,  H01L31/0352 ,  G01R31/26 ,  H01L31/0224 ,  H01L31/05 ,  H01L31/061

CPC classification number: H01L31/0682 ,  H01L21/228 ,  H01L21/268 ,  H01L31/02 ,  H01L31/022441 ,  H01L31/046 ,  H01L31/0504 ,  H01L31/0516 ,  H01L31/061 ,  H01L31/1804 ,  H02S40/32 ,  H02S50/10 ,  Y02E10/547 ,  Y02P70/521

Abstract: Photovoltaic modules can comprise solar cells having doped domains of opposite polarities along the rear side of the cells. The doped domains can be located within openings through a dielectric passivation layer. In some embodiments, the solar cells are formed form thin silicon foils. Doped domains can be formed by printing inks along the rear surface of the semiconducting sheets. The dopant inks can comprise nanoparticles having the desired dopant. Photovoltaic modules can be formed with a plurality of solar cells having different sized structures to improve module performance. The sized can be determined dynamically based on estimated properties of the semiconductor so that the current outputs of the cells in the module are more similar to each other. The modules can produce higher power relative to modules with similar equal sized cells that do not produce matched currents. Appropriate dynamic processing methods are described that include processing steps that provide adjustments of the processing according to the dynamic adjustments in cell designs.

公开(公告)号：EP2671261A2

公开(公告)日：2013-12-11

申请号：EP12742405.9

申请日：2012-01-23

Applicant: Nanogram Corporation

Inventor： LIU, Guojun ,  SRINIVASAN, Uma ,  CHIRUVOLU, Shivkumar

IPC: H01L31/042 ,  H01L31/0216 ,  H01L31/18

CPC classification number: H01L21/2252 ,  B82Y30/00 ,  H01L21/2225 ,  H01L21/228 ,  H01L31/068 ,  H01L31/0682 ,  H01L31/1804 ,  Y02E10/52 ,  Y02E10/547 ,  Y02P70/521

Abstract: The use of doped silicon nanoparticle inks and other liquid dopant sources can provide suitable dopant sources for driving dopant elements into a crystalline silicon substrate using a thermal process if a suitable cap is provided. Suitable caps include, for example, a capping slab, a cover that may or may not rest on the surface of the substrate and a cover layer. Desirable dopant profiled can be achieved. The doped nanoparticles can be delivered using a silicon ink. The residual silicon ink can be removed after the dopant drive-in or at least partially densified into a silicon material that is incorporated into the product device. The silicon doping is suitable for the introduction of dopants into crystalline silicon for the formation of solar cells.