Patents by Inventor Basudev Pradhan

Basudev Pradhan 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).

  • Photonic synapse based on graphene-perovskite quantum dot for neuromorphic computing
    Patent number: 11574177
    Abstract: A phototransistor device to act as an artificial photonic synapse includes a substrate and a graphene source-drain channel patterned on the substrate. A perovskite quantum dot layer is formed on the graphene source-drain channel. The perovskite quantum dot layer is methylammonium lead bromide material. A method of operating the phototransistor device as an artificial photonic synapse includes applying a first fixed voltage to a gate of the phototransistor and a second fixed voltage across the graphene source-drain channel. A presynaptic signal is applied as stimuli across the graphene source-drain channel. The presynaptic signal includes one or more pulses of light or electrical voltage. A current across the graphene source-drain channel is measured to represent a postsynaptic signal.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: February 7, 2023
    Inventors: Jayan Thomas, Tania Roy, Sonali Das, Basudev Pradhan, Jinxin Li
  • IN-SITU GROWTH OF QUANTUM DOTS AND NANO-CRYSTALS FROM ONE, TWO, OR THREE DIMENSIONAL MATERIAL
    Publication number: 20220093885
    Abstract: Techniques for growing, at least one of: (a) quantum dots and (b) nano-crystals, on a surface of a material are provided. One method comprises placing a precursor on the surface; adding an antisolvent to the precursor; and growing at least one of the quantum dots and the nanocrystals on the surface.
    Type: Application
    Filed: November 30, 2021
    Publication date: March 24, 2022
    Applicant: University of Central Florida Research Foundation, Inc.
    Inventors: Jayan Thomas, Basudev Pradhan, Farzana Chowdhury
  • In-situ growth of quantum dots and nano-crystals from one, two, or three dimensional material
    Patent number: 11217760
    Abstract: Techniques for growing, at least one of: (a) quantum dots and (b) nano-crystals, on a surface of a material are provided. One method comprises placing a precursor on the surface; adding an antisolvent to the precursor; and growing at least one of the quantum dots and the nanocrystals on the surface.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: January 4, 2022
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Jayan Thomas, Basudev Pradhan, Farzana Chowdhury
  • PHOTONIC SYNAPSE BASED ON GRAPHENE- PEROVSKITE QUANTUM DOT FOR NEUROMORPHIC COMPUTING
    Publication number: 20210081777
    Abstract: A phototransistor device to act as an artificial photonic synapse includes a substrate and a graphene source-drain channel patterned on the substrate. A perovskite quantum dot layer is formed on the graphene source-drain channel. The perovskite quantum dot layer is methylammonium lead bromide material. A method of operating the phototransistor device as an artificial photonic synapse includes applying a first fixed voltage to a gate of the phototransistor and a second fixed voltage across the graphene source-drain channel. A presynaptic signal is applied as stimuli across the graphene source-drain channel. The presynaptic signal includes one or more pulses of light or electrical voltage. A current across the graphene source-drain channel is measured to represent a postsynaptic signal.
    Type: Application
    Filed: September 14, 2020
    Publication date: March 18, 2021
    Inventors: Jayan THOMAS, Tania ROY, Sonali DAS, Basudev PRADHAN, Jinxin LI
  • IN-SITU GROWTH OF QUANTUM DOTS AND NANO-CRYSTALS FROM ONE, TWO, OR THREE DIMENSIONAL MATERIAL
    Publication number: 20210005831
    Abstract: Techniques for growing, at least one of: (a) quantum dots and (b) nano-crystals, on a surface of a material are provided. One method comprises placing a precursor on the surface; adding an antisolvent to the precursor; and growing at least one of the quantum dots and the nanocrystals on the surface.
    Type: Application
    Filed: June 15, 2020
    Publication date: January 7, 2021
    Applicant: University of Central Florida Research Foundation, Inc.
    Inventors: Jayan Thomas, Basudev Pradhan, Farzana Chowdhury