Patent ID: 11952679
Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 0:
1. A stable hybrid perovskite material structure comprising:
a bulk region comprising a single crystal perovskite material having a composition represented by formula ABX3, wherein A is at least one organic or metallic cation having a +1 or +2 charge, B is at least one inorganic cation having a +2 or +4 charge, and X is at least one anion having a −1 or −2 charge, wherein the single crystal perovskite material has a first bandgap; and
a perovskite surface layer having a second bandgap that is greater than the first bandgap and having a surface with a surface roughness of less than or equal to about 20% of an overall thickness of the perovskite surface layer.