The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2020
Filed:
Aug. 20, 2019
Government of the United States As Represented BY the Secretary of the Air Force, Wright-Patterson AFB, OH (US);
Santanu Bag, Beavercreek, OH (US);
Michael F Durstock, West Chester, OH (US);
Other;
Abstract
A method for increasing the speed of aerosol jet assisted printing a layered perovskite structure comprises applying a PEDOT:PSS layer to a substrate; applying an aerosol mist containing methylammonium iodide and lead iodide, with or without additives, atop the PEDOT:PSS layer with an aerosol jet nozzle; and holding the structure to form a methylammonium lead iodide (CHNHPbI) perovskite thin film layer. The substrate may be an ITO glass or plastic substrate, and the PEDOT:PSS layer may be applied by a process selected from spin-coating, inkjet-printing, slot-die-coating, aerosol jet printing, physical vapor deposition, chemical vapor deposition, and electrochemical deposition. The aerosol mist is generated from a single ink comprising all the constituents of methylammonium lead iodide either dissolved or suspended in one or more compatible solvents or co-solvents. The holding of the CHNHPbIlayer may be performed at about 25-120° C. or lower for 96 hours or less.