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 15:
16. A crystallization chamber for an inverse temperature crystallization process to form a single crystal perovskite, the crystallization chamber comprising:
a first plate and a second plate disposed in parallel to one another, wherein the first plate defines an internal surface near which the single crystal perovskite can grow;
a spacer disposed between the first plate and the second plate that defines a sealed internal volume between the first plate and the second plate that contains at least one seed crystal of the single crystal perovskite;
a reservoir containing a precursor solution of the single crystal perovskite having a composition represented by formula ABX3 into a crystallization chamber, wherein the precursor solution comprises a solvent and one or more compounds comprising atoms that form A, B, and X in the single crystal perovskite, wherein A is at least one organic 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;
an inlet in fluid communication with the internal volume configured to receive the precursor solution from the reservoir;
an outlet in fluid communication with the internal volume through which the precursor solution can flow;
a pump configured to pump the precursor solution from the inlet across the seed crystal in the internal volume to the outlet; and
at least one heater for heating the precursor solution to a predetermined temperature for growth of the single crystal perovskite material in the internal volume.