公开(公告)号：US20250109523A1

公开(公告)日：2025-04-03

申请号：US18684120

申请日：2022-03-08

Applicant: UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION

Inventor： Tae Heon KIM ,  Chang Won AHN ,  Muhammad SHEERAZ

IPC: C30B23/02 ,  C30B29/22

Abstract: The present invention provides a method for manufacturing a free-standing single-crystal membrane having a perovskite structure, the method comprising: applying an oxygen-deficient perovskite sacrificial layer having an ACuO2 structure (where A is at least one selected from the group consisting of calcium (Ca), strontium (Sr), and barium (Ba)) on a substrate; epitaxially growing a single-crystal membrane having a perovskite structure on the sacrificial layer; and selectively removing the sacrificial layer using an etchant, and provides a method for transferring a free-standing single-crystal membrane having a perovskite structure by using the method for manufacturing a free-standing single-crystal membrane having a perovskite structure.