Mihai A Buretea

US Patent:

6949206, Sep 27, 2005

Filed:

Sep 4, 2003

Appl. No.:

10/656910

Inventors:

Jeffery A. Whiteford - Belmont CA, US
Mihai A. Buretea - San Francisco CA, US
Erik Scher - San Francisco CA, US

Assignee:

Nanosys, Inc. - Palo Alto CA

International Classification:

H01B001/12

US Classification:

252500, 252502, 2525193, 549 41, 549 42, 562 8, 562 23, 136263, 136265, 136252

Abstract:

The present invention provides compositions (small molecules, oligomers and polymers) that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.

US Patent:

7068898, Jun 27, 2006

Filed:

Sep 4, 2003

Appl. No.:

10/656916

Inventors:

Mihai Buretea - San Francisco CA, US
Stephen Empedocles - Mountain View CA, US
Chunming Niu - Lexington CA, US
Erik C. Scher - San Francisco CA, US

Assignee:

Nanosys, Inc. - Palo Alto CA

International Classification:

G02B 5/10

US Classification:

385123, 257 40

Abstract:

This invention provides composite materials comprising nanostructures (e. g. , nanowires, branched nanowires, nanotetrapods, nanocrystals, and nanoparticles). Methods and compositions for making such nanocomposites are also provided, as are articles comprising such composites. Waveguides and light concentrators comprising nanostructures (not necessarily as part of a nanocomposite) are additional features of the invention.

US Patent:

7087832, Aug 8, 2006

Filed:

Dec 9, 2004

Appl. No.:

11/007916

Inventors:

Erik C. Scher - San Francisco CA, US
Mihai Buretea - San Francisco CA, US
Calvin Y. H. Chow - Portola Valley CA, US
Stephen A. Empedocles - Menlo Park CA, US
Andreas P. Meisel - San Francisco CA, US
J. Wallace Parce - Palo Alto CA, US

Assignee:

Nanosys, Inc. - Palo Alto CA

International Classification:

H01L 31/04
H01L 31/0264
H01L 31/036

US Classification:

136250, 136252, 136262, 136264, 136265, 136255, 136256, 136263, 257466, 257465, 257441, 257440, 257461

Abstract:

Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that comprise core-shell nanostructures and/or two populations of nanostructures, where the nanostructures are not necessarily part of a nanocomposite, are also features of the invention. Varied architectures for such devices are also provided including flexible and rigid architectures, planar and non-planar architectures and the like, as are systems incorporating such devices, and methods and systems for fabricating such devices. Compositions comprising two populations of nanostructures of different materials are also a feature of the invention.

US Patent:

7087833, Aug 8, 2006

Filed:

Dec 9, 2004

Appl. No.:

11/008315

Inventors:

Erik C. Scher - San Francisco CA, US
Mihai Buretea - San Francisco CA, US
Stephen A. Empedocles - Menlo Park CA, US

Assignee:

Nanosys, Inc. - Palo Alto CA

International Classification:

H01L 31/04
H01L 31/0264
H01L 31/036
H01L 31/18

US Classification:

136252, 136260, 136262, 136264, 136265, 136263, 136255, 136256, 136251, 257466, 257465, 257441, 257440, 257461, 257 43, 257433, 257431, 438 63, 438 85, 438 98, 438 64

Abstract:

Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that comprise core-shell nanostructures and/or two populations of nanostructures, where the nanostructures are not necessarily part of a nanocomposite, are also features of the invention. Varied architectures for such devices are also provided including flexible and rigid architectures, planar and non-planar architectures and the like, as are systems incorporating such devices, and methods and systems for fabricating such devices. Compositions comprising two populations of nanostructures of different materials are also a feature of the invention.

US Patent:

7091120, Aug 15, 2006

Filed:

Aug 4, 2004

Appl. No.:

10/910800

Inventors:

Mihai Buretea - San Francisco CA, US
Jian Chen - Mountain View CA, US
Calvin Chow - Portola Valley CA, US
Chunming Niu - Palo Alto CA, US
Yaoling Pan - Union City CA, US
J. Wallace Parce - Palo Alto CA, US
Linda T. Romano - Sunnyvale CA, US
David Stumbo - Belmont CA, US

Assignee:

Nanosys, Inc. - Palo Alto CA

International Classification:

H01L 21/28
H01L 21/3205

US Classification:

438602, 438603, 438604, 438197

Abstract:

The present invention relates to a system and process for producing a nanowire-material composite. A substrate having nanowires attached to a portion of at least one surface is provided. A material is deposited over the portion to form the nanowire-material composite. The process further optionally includes separating the nanowire-material composite from the substrate to form a freestanding nanowire-material composite. The freestanding nanowire material composite is optionally further processed into an electronic substrate. A variety of electronic substrates can be produced using the methods described herein. For example, a multi-color light-emitting diode can be produced from multiple, stacked layers of nanowire-material composites, each composite layer emitting light at a different wavelength.

US Patent:

7228050, Jun 5, 2007

Filed:

Jan 26, 2006

Appl. No.:

11/342087

Inventors:

Mihai Buretea - San Francisco CA, US
Stephen Empedocles - Mountain View CA, US
Chunming Niu - Palo Alto CA, US
Erik C. Scher - San Francisco CA, US

Assignee:

Nanosys, Inc. - Palo Alto CA

International Classification:

G02B 6/00
H01J 1/30
H01L 31/00

US Classification:

385141, 313355, 136263

Abstract:

This invention provides composite materials comprising nanostructures (e. g. , nanowires, branched nanowires, nanotetrapods, nanocrystals, and nanoparticles). Methods and compositions for making such nanocomposites are also provided, as are articles comprising such composites. Waveguides and light concentrators comprising nanostructures (not necessarily as part of a nanocomposite) are additional features of the invention.

US Patent:

7422790, Sep 9, 2008

Filed:

Sep 2, 2004

Appl. No.:

10/933827

Inventors:

Erik Scher - San Francisco CA, US
Mihai Buretea - San Francisco CA, US
Jeffery A. Whiteford - Belmont CA, US
Andreas Meisel - San Francisco CA, US

Assignee:

Nanosys, Inc. - Palo Alto CA

International Classification:

B32B 9/00
B32B 9/04

US Classification:

4284111, 428688, 977773, 977778, 977811, 977813, 977814, 977815, 977824

Abstract:

Methods of processing nanocrystals to remove excess free and bound organic material and particularly surfactants used during the synthesis process, and resulting nanocrystal compositions, devices and systems that are physically, electrically and chemically integratable into an end application.

US Patent:

7438833, Oct 21, 2008

Filed:

May 16, 2005

Appl. No.:

11/130303

Inventors:

Jeffery A. Whiteford - Belmont CA, US
Mihai A. Buretea - San Francisco CA, US
Erik C. Scher - San Francisco CA, US

Assignee:

Nanosys, Inc. - Palo Alto CA

International Classification:

C08G 61/00
C07C 13/28
C07D 497/12
H01B 1/12
H05B 33/00

US Classification:

252500, 2522993, 25230132, 25230136, 528101, 528377, 528398, 564 75, 564155, 568 58, 562 8, 562 23, 549 41

Abstract:

The present invention provides compositions (small molecules, oligomers and polymers) that can be used to modify charge transport across a nanocrystal surface or within a nanocrystal-containing matrix, as well as methods for making and using the novel compositions.