Patents by Inventor Larissa Levina
Larissa Levina has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20140291608Abstract: Various embodiment include optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit having an array of conductive regions, and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a film includes a network of fused nanocrystals, the nanocrystals having a core and an outer surface, wherein the core of at least a portion of the fused nanocrystals is in direct physical contact and electrical communication with the core of at least one adjacent fused nanocrystal, and wherein the film has substantially no defect states in the regions where the cores of the nanocrystals are fused. Additional devices and methods are described.Type: ApplicationFiled: May 12, 2014Publication date: October 2, 2014Applicant: InVisage Technologies, Inc.Inventors: Edward Hartley Sargent, Jason Paul Clifford, Gerasimos Konstantatos, Ian Howard, Ethan J.D. Klem, Larissa Levina
-
Patent number: 8803128Abstract: A composite material is described. The composite material comprises semiconductor nanocrystals, and organic molecules that passivate the surfaces of the semiconductor nanocrystals. One or more properties of the organic molecules facilitate the transfer of charge between the semiconductor nanocrystals. A semiconductor material is described that comprises p-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of electrons in the semiconductor material being greater than or equal to a mobility of holes. A semiconductor material is described that comprises n-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of holes in the semiconductor material being greater than or equal to a mobility of electrons.Type: GrantFiled: September 8, 2011Date of Patent: August 12, 2014Assignee: InVisage Technologies, Inc.Inventors: Edward Hartley Sargent, Ghada Koleilat, Larissa Levina
-
Patent number: 8724366Abstract: Various embodiment include optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit having an array of conductive regions, and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a film includes a network of fused nanocrystals, the nanocrystals having a core and an outer surface, wherein the core of at least a portion of the fused nanocrystals is in direct physical contact and electrical communication with the core of at least one adjacent fused nanocrystal, and wherein the film has substantially no defect states in the regions where the cores of the nanocrystals are fused. Additional devices and methods are described.Type: GrantFiled: March 21, 2013Date of Patent: May 13, 2014Assignee: InVisage Technologies, Inc.Inventors: Edward Hartley Sargent, Jason Paul Clifford, Gerasimos Konstantatos, Ian Howard, Ethan J. D. Klem, Larissa Levina
-
Publication number: 20130244366Abstract: The present invention provides of a three-dimensional bicontinuous heterostructure, a method of producing same, and the application of this structure towards the realization of photodetecting and photovoltaic devices working in the visible and the near-infrared. The three-dimensional bicontinuous heterostructure includes two interpenetrating layers which are spatially continuous, they are include only protrusions or peninsulas, and no islands. The method of producing the three-dimensional biocontinuous heterostructure relies on forming an essentially planar continuous bottom layer of a first material; forming a layer of this first material on top of the bottom layer which is textured to produce protrusions for subsequent interpenetration with a second material, coating this second material onto this structure; and forming a final coating with the second material that ensures that only the second material is contacted by subsequent layer.Type: ApplicationFiled: May 6, 2013Publication date: September 19, 2013Applicant: InVisage Technologies, Inc.Inventors: Edward Sargent, Steven Ashworth McDonald, Shiguo Zhang, Larissa Levina, Gerasimos Konstantatos, Paul Cyr
-
Publication number: 20130228749Abstract: Various embodiment include optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit having an array of conductive regions, and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a film includes a network of fused nanocrystals, the nanocrystals having a core and an outer surface, wherein the core of at least a portion of the fused nanocrystals is in direct physical contact and electrical communication with the core of at least one adjacent fused nanocrystal, and wherein the film has substantially no defect states in the regions where the cores of the nanocrystals are fused. Additional devices and methods are described.Type: ApplicationFiled: March 21, 2013Publication date: September 5, 2013Applicant: InVisage Technologies, Inc.Inventors: Edward Hartley Sargent, Jason Paul Clifford, Gerasimos Konstantatos, Ian Howard, Ethan J.D. Klem, Larissa Levina
-
Patent number: 8476616Abstract: A composite material is described. The composite material comprises semiconductor nanocrystals, and organic molecules that passivate the surfaces of the semiconductor nanocrystals. One or more properties of the organic molecules facilitate the transfer of charge between the semiconductor nanocrystals. A semiconductor material is described that comprises p-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of electrons in the semiconductor material being greater than or equal to a mobility of holes. A semiconductor material is described that comprises n-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of holes in the semiconductor material being greater than or equal to a mobility of electrons.Type: GrantFiled: September 16, 2011Date of Patent: July 2, 2013Assignee: InVisage Technologies, Inc.Inventors: Edward Hartley Sargent, Ghada Koleilat, Larissa Levina
-
Patent number: 8450138Abstract: Provided herein are embodiments of a three-dimensional bicontinuous heterostructure, a method of producing same, and the application of this structure. The three-dimensional bicontinuous heterostructure includes two interpenetrating layers which are spatially continuous, include only protrusions or peninsulas, and have no islands. The method of producing the three-dimensional bicontinuous heterostructure includes forming an essentially planar continuous bottom layer of a first material; forming a layer of this first material on top of the bottom layer that is textured to produce protrusions for subsequent interpenetration with a second material, coating this second material onto this structure, and forming a coating with the second material that ensures that only the second material is contacted by subsequent layer. One of the materials includes visible and/or infrared-absorbing semiconducting quantum dot nanoparticles, and one of materials is a hole conductor and the other is an electron conductor.Type: GrantFiled: February 8, 2012Date of Patent: May 28, 2013Assignee: InVisage Technologies, Inc.Inventors: Edward Sargent, Steven Ashworth McDonald, Shiguo Zhang, Larissa Levina, Gerasimos Konstantatos, Paul Cyr
-
Patent number: 8422266Abstract: Various embodiment include optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit having an array of conductive regions, and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a film includes a network of fused nanocrystals, the nanocrystals having a core and an outer surface, wherein the core of at least a portion of the fused nanocrystals is in direct physical contact and electrical communication with the core of at least one adjacent fused nanocrystal, and wherein the film has substantially no defect states in the regions where the cores of the nanocrystals are fused. Additional devices and methods are described.Type: GrantFiled: September 12, 2012Date of Patent: April 16, 2013Assignee: InVisage Technologies, Inc.Inventors: Edward Sargent, Jason Clifford, Gerasimos Konstantatos, Ian Howard, Ethan J. D. Klem, Larissa Levina
-
Publication number: 20130009129Abstract: Various embodiment include optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit having an array of conductive regions, and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a film includes a network of fused nanocrystals, the nanocrystals having a core and an outer surface, wherein the core of at least a portion of the fused nanocrystals is in direct physical contact and electrical communication with the core of at least one adjacent fused nanocrystal, and wherein the film has substantially no defect states in the regions where the cores of the nanocrystals are fused. Additional devices and methods are described.Type: ApplicationFiled: September 12, 2012Publication date: January 10, 2013Inventors: Edward Sargent, Jason Clifford, Gerasimos Kanstantatos, Ian Howard, Ethan J.D. Klem, Larissa Levina
-
Publication number: 20130001520Abstract: A composite material is described. The composite material comprises semiconductor nanocrystals, and organic molecules that passivate the surfaces of the semiconductor nanocrystals. One or more properties of the organic molecules facilitate the transfer of charge between the semiconductor nanocrystals. A semiconductor material is described that comprises p-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of electrons in the semiconductor material being greater than or equal to a mobility of holes. A semiconductor material is described that comprises n-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of holes in the semiconductor material being greater than or equal to a mobility of electrons.Type: ApplicationFiled: September 8, 2011Publication date: January 3, 2013Inventors: Edward Hartley Sargent, Ghada Koleilat, Larissa Levina
-
Patent number: 8284587Abstract: Various embodiments include apparatuses including optical and optoelectronic devices and methods of making same. One such device includes an image sensor having an integrated circuit with a number of pixel electrodes, a substantially-continuous optically-sensitive layer, and at least one counter-electrode. The substantially continuous optically sensitive layer is in electrical communication with both the number of pixel electrodes and also the counter-electrode. Additional apparatuses and methods are disclosed.Type: GrantFiled: December 12, 2011Date of Patent: October 9, 2012Assignee: InVisage Technologies, Inc.Inventors: Edward Sargent, Jason Clifford, Gerasimos Konstantatos, Ian Howard, Ethan J. D. Klem, Larissa Levina
-
Patent number: 8284586Abstract: Optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit an array of conductive regions; and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a method of forming a nanocrystalline film includes fabricating a plurality of nanocrystals having a plurality of first ligands attached to their outer surfaces; exchanging the first ligands for second ligands of different chemical composition than the first ligands; forming a film of the ligand-exchanged nanocrystals; removing the second ligands; and fusing the cores of adjacent nanocrystals in the film to form an electrical network of fused nanocrystals.Type: GrantFiled: September 7, 2011Date of Patent: October 9, 2012Assignee: InVisage Technologies, Inc.Inventors: Edward Sargent, Larissa Levina, Gerasimos Konstantatos, Ian Howard, Ethan J. D. Klem, Jason Clifford
-
Publication number: 20120205624Abstract: A composite material is described. The composite material comprises semiconductor nanocrystals, and organic molecules that passivate the surfaces of the semiconductor nanocrystals. One or more properties of the organic molecules facilitate the transfer of charge between the semiconductor nanocrystals. A semiconductor material is described that comprises p-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of electrons in the semiconductor material being greater than or equal to a mobility of holes. A semiconductor material is described that comprises n-type semiconductor material including semiconductor nanocrystals. At least one property of the semiconductor material results in a mobility of holes in the semiconductor material being greater than or equal to a mobility of electrons.Type: ApplicationFiled: September 16, 2011Publication date: August 16, 2012Inventors: Edward Hatley Sargent, Ghada Koleilat, Larissa Levina
-
Publication number: 20120208315Abstract: Provided herein are embodiments of a three-dimensional bicontinuous heterostructure, a method of producing same, and the application of this structure. The three-dimensional bicontinuous heterostructure includes two interpenetrating layers which are spatially continuous, include only protrusions or peninsulas, and have no islands. The method of producing the three-dimensional bicontinuous heterostructure includes forming an essentially planar continuous bottom layer of a first material; forming a layer of this first material on top of the bottom layer that is textured to produce protrusions for subsequent interpenetration with a second material, coating this second material onto this structure, and forming a coating with the second material that ensures that only the second material is contacted by subsequent layer. One of the materials includes visible and/or infrared-absorbing semiconducting quantum dot nanoparticles, and one of materials is a hole conductor and the other is an electron conductor.Type: ApplicationFiled: February 8, 2012Publication date: August 16, 2012Applicant: InVisage Technologies, Inc.Inventors: Edward Sargent, Steve McDonald, Shiquo Zhang, Larissa Levina, Gerasimos Konstantatos, Paul Cyr
-
Patent number: 8213212Abstract: In an example embodiment, an optical device includes an integrated circuit, an array of conductive regions, and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region. In another example embodiment, a method of forming a nanocrystalline film includes fabricating nanocrystals having a plurality of first ligands attached to their outer surfaces, exchanging the first ligands for second ligands of a different chemical composition, forming a film of the ligand-exchanged nanocrystals, removing the second ligands, and fusing the cores of adjacent nanocrystals in the film to form an electrical network of fused nanocrystals. In another example embodiment, a film includes a network of fused nanocrystals with at least portions of the fused nanocrystals being in direct physical contact with adjacent nanocrystals, the film having substantially no defect states in regions where cores of the nanocrystals are fused.Type: GrantFiled: September 23, 2011Date of Patent: July 3, 2012Assignee: InVisage Technologies, Inc.Inventors: Edward Sargent, Gerasimos Konstantatos, Larissa Levina, Ian Howard, Ethan J. D. Klem, Jason Clifford
-
Publication number: 20120145884Abstract: Various embodiments include apparatuses including optical and optoelectronic devices and methods of making same. One such device includes an image sensor having an integrated circuit with a number of pixel electrodes, a substantially-continuous optically-sensitive layer, and at least one counter-electrode. The substantially continuous optically sensitive layer is in electrical communication with both the number of pixel electrodes and also the counter-electrode. Additional apparatuses and methods are disclosed.Type: ApplicationFiled: December 12, 2011Publication date: June 14, 2012Inventors: Edward Sargent, Jason Clifford, Gerasimos Konstantatos, Ian Howard, Ethan J.D. Klem, Larissa Levina
-
Publication number: 20120100699Abstract: In an example embodiment, an optical device includes an integrated circuit, an array of conductive regions, and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region. In another example embodiment, a method of forming a nanocrystalline film includes fabricating nanocrystals having a plurality of first ligands attached to their outer surfaces, exchanging the first ligands for second ligands of a different chemical composition, forming a film of the ligand-exchanged nanocrystals, removing the second ligands, and fusing the cores of adjacent nanocrystals in the film to form an electrical network of fused nanocrystals. In another example embodiment, a film includes a network of fused nanocrystals with at least portions of the fused nanocrystals being in direct physical contact with adjacent nanocrystals, the film having substantially no defect states in regions where cores of the nanocrystals are fused.Type: ApplicationFiled: September 23, 2011Publication date: April 26, 2012Applicant: InVisage Technologies, Inc.Inventors: Edward Sargent, Gerasimos Konstantatos, Larissa Levina, Ian Howard, Ethan J.D. Klem, Jason Clifford
-
Patent number: 8115232Abstract: The present invention provides of a three-dimensional bicontinuous heterostructure, a method of producing same, and the application of this structure towards the realization of photodetecting and photovoltaic devices working in the visible and the near-infrared. The three-dimensional bicontinuous heterostructure includes two interpenetrating layers which are spatially continuous, they are include only protrusions or peninsulas, and no islands. The method of producing the three-dimensional bicontinuous heterostructure relies on forming an essentially planar continuous bottom layer of a first material; forming a layer of this first material on top of the bottom layer which is textured to produce protrusions for subsequent interpenetration with a second material, coating this second material onto this structure; and forming a final coating with the second material that ensures that only the second material is contacted by subsequent layer.Type: GrantFiled: January 9, 2006Date of Patent: February 14, 2012Assignee: InVisage Technologies, Inc.Inventors: Edward Sargent, Steve McDonald, Shiguo Zhang, Larissa Levina, Gerasimos Konstantatos, Paul Cyr
-
Patent number: 8102693Abstract: Optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit an array of conductive regions; and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a method of forming a nanocrystalline film includes fabricating a plurality of nanocrystals having a plurality of first ligands attached to their outer surfaces; exchanging the first ligands for second ligands of different chemical composition than the first ligands; forming a film of the ligand-exchanged nanocrystals; removing the second ligands; and fusing the cores of adjacent nanocrystals in the film to form an electrical network of fused nanocrystals.Type: GrantFiled: August 6, 2010Date of Patent: January 24, 2012Assignee: InVisage Technologies, Inc.Inventors: Edward Sargent, Jason Clifford, Gerasimos Konstantatos, Ian Howard, Ethan J. D. Klem, Larissa Levina
-
Publication number: 20110315959Abstract: Optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit an array of conductive regions; and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a method of forming a nanocrystalline film includes fabricating a plurality of nanocrystals having a plurality of first ligands attached to their outer surfaces; exchanging the first ligands for second ligands of different chemical composition than the first ligands; forming a film of the ligand-exchanged nanocrystals; removing the second ligands; and fusing the cores of adjacent nanocrystals in the film to form an electrical network of fused nanocrystals.Type: ApplicationFiled: September 7, 2011Publication date: December 29, 2011Applicant: InVisage Technologies, Inc.Inventors: Edward Sargent, Gerasimos Konstantatos, Larissa Levina, Ian Howard, Ethan J.D. Klem, Jason Clifford