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Title: From oxide epitaxy to freestanding membranes: Opportunities and challenges

Journal Article · · Science Advances

Motivated by the growing demand to integrate functional oxides with dissimilar materials, numerous studies have been undertaken to detach a functional oxide film from its original substrate, effectively forming a membrane, which can then be affixed to the desired host material. This review article is centered on the synthesis of functional oxide membranes, encompassing various approaches to their synthesis, exfoliation, and transfer techniques. First, we explore the characteristics of thin-film growth techniques with emphasis on molecular beam epitaxy. We then examine the fundamental principles and pivotal factors underlying three key approaches of creating membranes: (i) chemical lift-off, (ii) the two-dimensional layer–assisted lift-off, and (iii) spalling. We review the methods of exfoliation and transfer for each approach. Last, we provide an outlook into the future of oxide membranes, highlighting their applications and emerging properties.

Research Organization:
University of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Air Force Office of Scientific Research (AFOSR); Department of Defense (DOD)
Grant/Contract Number:
SC0020211; SC0023464
OSTI ID:
2481077
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 50 Vol. 10; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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  • Moetakef, Pouya; Zhang, Jack Y.; Raghavan, Santosh
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 31, Issue 4 https://doi.org/10.1116/1.4804180
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