Patents by Inventor Razvan Nistor
Razvan Nistor 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).
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Patent number: 9933420Abstract: A graphene nanomesh based charge sensor and method for producing a graphene nanomesh based charge sensor. The method includes generating multiple holes in graphene to create a graphene nanomesh with a patterned array of multiple holes; passivating an edge of each of the multiple holes of the graphene nanomesh to allow for functionalization of the graphene nanomesh; and functionalizing the passivated edge of each of the multiple holes of the graphene nanomesh with a chemical compound that facilitates chemical binding of a receptor of a target molecule to the edge of one or more of the multiple holes, wherein the receptor is a molecule that chemically binds to the target molecule, irrespective of the size of the target molecule.Type: GrantFiled: April 29, 2015Date of Patent: April 3, 2018Assignees: International Business Machines Corporation, Egypt Nanotechnology CenterInventors: Ali Afzali-Ardakani, Shu-jen Han, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Razvan Nistor, Hsinyu Tsai
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Patent number: 9766229Abstract: A graphene nanomesh based charge sensor and method for producing a graphene nanomesh based charge sensor. A graphene nanomesh based charge sensor includes a graphene nanomesh with a patterned array of multiple holes created by generating multiple holes in graphene in a periodic way, wherein: an edge of each of the multiple holes of the graphene nanomesh is passivated; and the passivated edge of each of the multiple holes of the graphene nanomesh is functionalized with a chemical compound that facilitates chemical binding of a receptor of a target molecule to the edge of one or more of the multiple holes, allowing the target molecule to bind to the receptor, causing a charge to be transferred to the graphene nanomesh to produce a graphene nanomesh based charge sensor for the target molecule.Type: GrantFiled: April 29, 2015Date of Patent: September 19, 2017Assignees: International Business Machines Corporation, Egypt Nanotechnology CenterInventors: Ali Afzali-Ardakani, Shu-jen Han, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Razvan Nistor, Hsinyu Tsai
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Publication number: 20150276726Abstract: A graphene nanomesh based charge sensor and method for producing a graphene nanomesh based charge sensor. A graphene nanomesh based charge sensor includes a graphene nanomesh with a patterned array of multiple holes created by generating multiple holes in graphene in a periodic way, wherein: an edge of each of the multiple holes of the graphene nanomesh is passivated; and the passivated edge of each of the multiple holes of the graphene nanomesh is functionalized with a chemical compound that facilitates chemical binding of a receptor of a target molecule to the edge of one or more of the multiple holes, allowing the target molecule to bind to the receptor, causing a charge to be transferred to the graphene nanomesh to produce a graphene nanomesh based charge sensor for the target molecule.Type: ApplicationFiled: April 29, 2015Publication date: October 1, 2015Inventors: Ali Afzali-Ardakani, Shu-jen Han, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Razvan Nistor, Hsinyu Tsai
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Publication number: 20150233900Abstract: A graphene nanomesh based charge sensor and method for producing a graphene nanomesh based charge sensor. The method includes generating multiple holes in graphene to create a graphene nanomesh with a patterned array of multiple holes; passivating an edge of each of the multiple holes of the graphene nanomesh to allow for functionalization of the graphene nanomesh; and functionalizing the passivated edge of each of the multiple holes of the graphene nanomesh with a chemical compound that facilitates chemical binding of a receptor of a target molecule to the edge of one or more of the multiple holes, wherein the receptor is a molecule that chemically binds to the target molecule, irrespective of the size of the target molecule.Type: ApplicationFiled: April 29, 2015Publication date: August 20, 2015Inventors: Ali Afzali-Ardakani, Shu-jen Han, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Razvan Nistor, Hsinyu Tsai
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Patent number: 9102540Abstract: A graphene nanomesh based charge sensor and method for producing a graphene nanomesh based charge sensor. The method includes generating multiple holes in graphene in a periodic way to create a graphene nanomesh with a patterned array of multiple holes, passivating an edge of each of the multiple holes of the graphene nanomesh to allow for functionalization of the graphene nanomesh, and functionalizing the passivated edge of each of the multiple holes of the graphene nanomesh with a chemical compound that facilitates chemical binding of a receptor of a target molecule to the edge of one or more of the multiple holes, allowing the target molecule to bind to the receptor, causing a charge to be transferred to the graphene nanomesh to produce a graphene nanomesh based charge sensor for the target molecule.Type: GrantFiled: December 2, 2011Date of Patent: August 11, 2015Assignees: International Business Machines Corporation, Egypt Nanotechnology Center (EGNC)Inventors: Ali Afzali-Ardakani, Shu-jen Han, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Razvan Nistor, Hsinyu Tsai
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Publication number: 20130164882Abstract: Disclosed is a method which includes forming a bottom metallic electrode on an insulating substrate; forming a semiconductor junction on the metallic electrode; forming a transparent conducting overlayer in contact with the semiconductor junction; and forming a metallic layer in contact with the transparent conducting overlayer, wherein the metallic layer is formed by a plating process. The plating process may be an electroplating process or an electroless plating process. The transparent conducting overlayer may be carbon nanotubes or graphene. The semiconductor junction may be a p-i-n semiconductor junction, a p-n semiconductor junction, an n-p semiconductor junction or an n-i-p semiconductor junction.Type: ApplicationFiled: December 23, 2011Publication date: June 27, 2013Applicant: International Business Machines CorporationInventors: Ali Afzali-Ardakani, Ageeth A. Bol, Mostafa M. EI-Ashry, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Dennis M. Newns, Razvan Nistor, George S. Tulevski
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Publication number: 20130143769Abstract: A graphene nanomesh based charge sensor and method for producing a graphene nanomesh based charge sensor. The method includes generating multiple holes in graphene in a periodic way to create a graphene nanomesh with a patterned array of multiple holes, passivating an edge of each of the multiple holes of the graphene nanomesh to allow for functionalization of the graphene nanomesh, and functionalizing the passivated edge of each of the multiple holes of the graphene nanomesh with a chemical compound that facilitates chemical binding of a receptor of a target molecule to the edge of one or more of the multiple holes, allowing the target molecule to bind to the receptor, causing a charge to be transferred to the graphene nanomesh to produce a graphene nanomesh based charge sensor for the target molecule.Type: ApplicationFiled: December 2, 2011Publication date: June 6, 2013Applicants: EGYPT NANOTECHNOLOGY CENTER (EGNC), INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ali Afzali-Ardakani, Shu-jen Han, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Razvan Nistor, Hsinyu Tsai
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Publication number: 20120000516Abstract: A solar cell includes a semiconductor portion, a graphene layer disposed on a first surface of the semiconductor portion, and a first conductive layer patterned on the graphene layer, the first conductive layer including at least one bus bar portion and a plurality of fingers extending from the at least one bus bar portion.Type: ApplicationFiled: July 1, 2010Publication date: January 5, 2012Applicants: EGYPT NANOTECHNOLOGY CENTER, INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ageeth A. Bol, Amal Kasry, Ahmed Maarouf, Glenn J. Martyna, Dennis M. Newns, Razvan A. Nistor, George S. Tulevski
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Publication number: 20120000521Abstract: A solar cell includes a semiconductor portion, a graphene layer disposed on a first surface of the semiconductor portion, and a first conductive layer patterned on the graphene layer, the first conductive layer including at least one bus bar portion, a plurality of fingers extending from the at least one bus bar portion, and a refractive layer disposed on the first conductive layer.Type: ApplicationFiled: July 1, 2010Publication date: January 5, 2012Applicants: EGYPT NANOTECHNOLOGY CENTER, INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ageeth A. Bol, Amal Kasry, Marcelo Kuroda, Ahmed Maarouf, Glenn J. Martyna, Dennis M. Newns, Razvan A. Nistor, George S. Tulevski