Patents by Inventor Edward E. Aifer

Edward E. Aifer 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).

  • Enhanced Infrared Photodiodes Based on PbS/PbClx Core/Shell Nanocrystals
    Publication number: 20220020942
    Abstract: Photodiodes configured to convert incident photons in the short-wave infrared (SWIR) to electric current, where the photodiodes have a PbS/PbClx core/shell nanocrystal absorber layer. The PbClx shell in the PbS/PbClx nanocrystals provide native passivation in the (100) crystal facets and enable removal of native ligands and ligand exchange on the (111) crystal facets of the PbS/PbClx nanocrystals such that the photodiode exhibits reduced current densities under reverse bias and greater infrared photoresponse, providing improved device performance as compared to photodiodes having absorber layers formed from PbS core nanocrystals alone.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 20, 2022
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Adam E. Colbert, Diogenes Placencia, Janice E. Boercker, Edward E. Aifer, Joseph G. Tischler, Erin L. Ratcliff