Patents by Inventor Mark W.B. Wilson

Mark W.B. Wilson 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: 10794771
    Abstract: The present invention generally relates to composition and methods for downconverting light. In some embodiments, the composition and methods comprise an organic material, a nanocrystal, and a ligand capable of facilitating energy transfer between the organic material and the nanocrystal. In certain embodiments, the nanocrystal has a first excited energy state with an energy less than a triplet energy state of the organic material. The organic material, in some embodiments, may be aromatic and/or include one or more pi-conjugated carbon-carbon double bonds. In some cases, incident light may be absorbed by the organic material to produce two triplet excitons. The triplet excitons may then transfer to the nanocrystal via the ligand, where they can undergo recombination, resulting in the formation low energy photons.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: October 6, 2020
    Assignee: Massachusetts Institute of Technology
    Inventors: Daniel N. Congreve, Nicholas John Thompson, Mark W. B. Wilson, Mengfei Wu, Marc A. Baldo, Moungi G. Bawendi, Vladimir Bulovic
  • Patent number: 10109760
    Abstract: The size-dependent band-gap tunability and solution processability of nanocrystals (NCs) make them attractive candidates for optoelectronic applications. One factor that presently limits the device performance of NC thin films is sub-bandgap states, also referred to as trap states. Trap states can be controlled by surface treatment of the nanocrystals.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 23, 2018
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Gyuweon Hwang, Donghun Kim, Jose M. Cordero, Mark W. B. Wilson, Chia-Hao M. Chuang, Jeffrey C. Grossman, Moungi G. Bawendi
  • Patent number: 9944847
    Abstract: The present invention generally relates to composition and methods for upconverting light. In some embodiments, the composition and methods comprise an organic material, a nanocrystal, and a ligand capable of facilitating energy transfer between the nanocrystal and the organic material. In certain embodiments, the nanocrystal has a first excited energy state with an energy greater than a triplet state of the organic material. The organic material, in some embodiments, may be aromatic and/or include one or more pi-conjugated carbon-carbon double bonds. In some cases, incident light may be absorbed by the nanocrystal to produce triplet excitons. The triplet excitons may then transfer from the nanocrystal to the organic material and undergo triplet-triplet annihilation, creating a singlet state of approximately twice the energy of the triplet exciton. In certain embodiments, the singlet state fluoresces, resulting in the formation of a high energy photon.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: April 17, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Marc A. Baldo, Daniel N. Congreve, Nicholas John Thompson, Mark W. B. Wilson, Mengfei Wu, Moungi G. Bawendi, Vladimir Bulovic
  • Publication number: 20160336477
    Abstract: The size-dependent band-gap tunability and solution processability of nanocrystals (NCs) make them attractive candidates for optoelectronic applications. One factor that presently limits the device performance of NC thin films is sub-bandgap states, also referred to as trap states. Trap states can be controlled by surface treatment of the nanocrystals.
    Type: Application
    Filed: April 8, 2016
    Publication date: November 17, 2016
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Gyuweon Hwang, Donghun Kim, Jose M. Cordero, Mark W. B. Wilson, Chia-Hao M. Chuang, Jeffrey C. Grossman, Moungi G. Bawendi
  • Publication number: 20160238455
    Abstract: The present invention generally relates to composition and methods for downconverting light. In some embodiments, the composition and methods comprise an organic material, a nanocrystal, and a ligand capable of facilitating energy transfer between the organic material and the nanocrystal. In certain embodiments, the nanocrystal has a first excited energy state with an energy less than a triplet energy state of the organic material. The organic material, in some embodiments, may be aromatic and/or include one or more pi-conjugated carbon-carbon double bonds. In some cases, incident light may be absorbed by the organic material to produce two triplet excitons. The triplet excitons may then transfer to the nanocrystal via the ligand, where they can undergo recombination, resulting in the formation low energy photons.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Applicant: Massachusetts Institute of Technology
    Inventors: Daniel N. Congreve, Nicholas John Thompson, Mark W.B. Wilson, Mengfei Wu, Marc A. Baldo, Moungi G. Bawendi, Vladimir Bulovic
  • Publication number: 20160237343
    Abstract: The present invention generally relates to composition and methods for upconverting light. In some embodiments, the composition and methods comprise an organic material, a nanocrystal, and a ligand capable of facilitating energy transfer between the nanocrystal and the organic material. In certain embodiments, the nanocrystal has a first excited energy state with an energy greater than a triplet state of the organic material. The organic material, in some embodiments, may be aromatic and/or include one or more pi-conjugated carbon-carbon double bonds. In some cases, incident light may be absorbed by the nanocrystal to produce triplet excitons. The triplet excitons may then transfer from the nanocrystal to the organic material and undergo triplet-triplet annihilation, creating a singlet state of approximately twice the energy of the triplet exciton. In certain embodiments, the singlet state fluoresces, resulting in the formation of a high energy photon.
    Type: Application
    Filed: February 16, 2016
    Publication date: August 18, 2016
    Applicant: Massachusetts Institute of Technology
    Inventors: Marc A. Baldo, Daniel N. Congreve, Nicholas John Thompson, Mark W.B. Wilson, Mengfei Wu, Moungi G. Bawendi, Vladimir Bulovic