Patents by Inventor Valy Vardeny

Valy Vardeny 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).

  • Patent number: 9219226
    Abstract: The spacer in a spin-valve is replaced with an organic layer, allowing for numerous applications, including light-emitting structures. The invention demonstrates that the spin coherence of the organic material is sufficiently long that the carriers do not lose their spin memory even in traversing a thicker passive barrier. At least three methods to fabricate the organic spin-valve devices are disclosed, in which the difficulties associated with depositing the ferromagnetic (FM) and organic layers are addressed.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: December 22, 2015
    Assignee: THE UNIVERSITY OF UTAH RESEARCH FOUNDATION
    Inventors: Jing Shi, Valy Vardeny
  • Publication number: 20150194473
    Abstract: The present invention relates to devices that can be manipulated or controlled with a magnetic field, such as a spin-valve device, an organic light-emitting device, a compass, or a magnetometer. The devices of the invention comprise an organic interlayer comprising a deuterated organic material.
    Type: Application
    Filed: December 11, 2014
    Publication date: July 9, 2015
    Inventors: Zeev Valy Vardeny, Leonard Wojcik, Tho Duc Nguyen, Fujian Wang
  • Publication number: 20130095327
    Abstract: The present invention relates to devices that can be manipulated or controlled with a magnetic field, such as a spin-valve device, an organic light-emitting device, a compass, or a magnetometer. The devices of the invention comprise an organic interlayer comprising a deuterated organic material.
    Type: Application
    Filed: September 17, 2010
    Publication date: April 18, 2013
    Applicant: University of Utah Research Foundation
    Inventors: Zeev Valy Vardeny, Leonard Wojcik, Tho Duc Nguyen, Fujian Wang
  • Patent number: 7682707
    Abstract: The maximum luminous efficiency of organic light-emitting materials is increased through spin-dependent processing. The technique is applicable to all electro-luminescent processes in which light is produced by singlet exciton decay, and all devices which use such effects, including LEDs, super-radiant devices, amplified stimulated emission devices, lasers, other optical microcavity devices, electrically pumped optical amplifiers, and phosphorescence (Ph) based light emitting devices. In preferred embodiments, the emissive material is doped with an impurity, or otherwise modified, to increase the spin-lattice relaxation rate (i.e., decrease the spin-lattice time), and hence raise the efficiency of the device. The material may be a polymer, oligomer, small molecule, single crystal, molecular crystal, or fullerene. The impurity is preferably a magnetic or paramagnetic substance.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: March 23, 2010
    Assignee: University of Utah
    Inventors: Z. Valy Vardeny, Markus Wohlgenannt
  • Publication number: 20070082230
    Abstract: The spacer in a spin-valve is replaced with an organic layer, allowing for numerous applications, including light-emitting structures. The invention demonstrates that the spin coherence of the organic material is sufficiently long that the carriers do not lose their spin memory even in traversing a thicker passive barrier. At least three methods to fabricate the organic spin-valve devices are disclosed, in which the difficulties associated with depositing the ferromagnetic (FM) and organic layers are addressed.
    Type: Application
    Filed: May 24, 2004
    Publication date: April 12, 2007
    Inventors: Jing Shi, Valy Vardeny
  • Patent number: 6943359
    Abstract: Organic materials exposed to an electron beam for patterning a substrate (1) to make an optoelectronic organic device which includes a source, a drain, gate dielectric layer (4), and a substrate for emitting light.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: September 13, 2005
    Assignee: University of Utah
    Inventors: Z. Valy Vardeny, Sergey Li, Matthew C. Delong, Xiaomei Jiang
  • Publication number: 20040113098
    Abstract: Organic materials exposed to an electron beam for patterning a substrate (1) to make an optoelectronic organic device which includes a source, a drain, gate dielectric layer (4), and a substrate for emitting light.
    Type: Application
    Filed: February 5, 2004
    Publication date: June 17, 2004
    Inventors: Z Valy Vardeny, Sergey Li, Matthew C Delong, Xiaomei Jiang
  • Publication number: 20020093006
    Abstract: The maximum luminous efficiency of organic light-emitting materials is increased through spin-dependent processing. The technique is applicable to all electro-luminescent processes in which light is produced by singlet exciton decay, and all devices which use such effects, including LEDs, super-radiant devices, amplified stimulated emission devices, lasers, other optical microcavity devices, electrically pumped optical amplifiers, and phosphorescence (Ph) based light emitting devices. In preferred embodiments, the emissive material is doped with an impurity, or otherwise modified, to increase the spin-lattice relaxation rate (i.e., decrease the spin-lattice time), and hence raise the efficiency of the device. The material may be a polymer, oligomer, small molecule, single crystal, molecular crystal, or fullerene. The impurity is preferably a magnetic or paramagnetic substance.
    Type: Application
    Filed: January 15, 2002
    Publication date: July 18, 2002
    Inventors: Z. Valy Vardeny, Markus Wohlgenannt