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:
Oct. 17, 2017
Filed:
Aug. 10, 2016
Santanu Bag, Beavercreek, OH (US);
Michael F Durstock, West Chester, OH (US);
Santanu Bag, Beavercreek, OH (US);
Michael F Durstock, West Chester, OH (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
A method for making a layered perovskite structure comprises: a) performing a vapor assisted surface treatment (VAST) of a substrate with a surface passivating agent; b) applying a layer of PbIto the passivating agent; c) exposing the PbIto methylammonium iodide (CHNHI) in an orthogonal solvent; and d) annealing the structure. A PEDOT:PSS coated ITO glass substrate may be used. The surface passivation agent may be one a chalcogenide-containing species with the general chemical formula (EE)N(EE)N'C═X where any one of E, E, Eand Eis independently selected from C1-C15 organic substituents comprising from 0 to 15 heteroatoms or hydrogen, and X is S, Se or Te, thiourea, thioacetamide, selenoacetamide, selenourea, HS, HSe, HTe or LXH wherein L is a Corganic substituent comprising heteroatoms and X═S, Se, or Te. The passivating agent may be applied by spin-coating, inkjet-printing, slot-die-coating, aerosol-jet printing, PVD, CVD, and electrochemical deposition.