Patents by Inventor Fanny Greullet

Fanny Greullet 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).

  • Masked cation exchange lithography
    Patent number: 10160906
    Abstract: We describe a method for patterning of colloidal nanocrystals films that combines a high energy beam treatment with a step of cation exchange. The high energy irradiation causes cross-linking of the ligand molecules present at the nanocrystal surface, and the cross-linked molecules act as a mask for the subsequent cation exchange reaction. Consequently, in the following step of cation exchange, the regions that have not been exposed to beam irradiation are chemically transformed, while the exposed ones remain unchanged. This selective protection allows the design of patterns that are formed by chemically different nanocrystals, yet in a homogeneous nanocrystal film.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: December 25, 2018
    Assignee: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA
    Inventors: Roman Krahne, Karol Miszta, Andrea Toma, Fanny Greullet, Sergio Marras, Mirko Prato, Milena Arciniegas, Liberato Manna
  • MASKED CATION EXCHANGE LITHOGRAPHY
    Publication number: 20160246177
    Abstract: We describe a method for patterning of colloidal nanocrystals films that combines a high energy beam treatment with a step of cation exchange. The high energy irradiation causes cross-linking of the ligand molecules present at the nanocrystal surface, and the cross-linked molecules act as a mask for the subsequent cation exchange reaction. Consequently, in the following step of cation exchange, the regions that have not been exposed to beam irradiation are chemically transformed, while the exposed ones remain unchanged. This selective protection allows the design of patterns that are formed by chemically different nanocrystals, yet in a homogeneous nanocrystal film.
    Type: Application
    Filed: February 24, 2015
    Publication date: August 25, 2016
    Inventors: Roman Krahne, Karol Miszta, Andrea Toma, Fanny Greullet, Sergio Marras, Mirko Prato, Milena Arciniegas, Liberato Manna