| Abstract Scope |
With a rapidly growing family of vdW semiconductors, the role of dielectric and metals have become more important than ever. In this talk, I will present challenges associated with the synthesis of three-dimensional (3D) perovskite nanomembranes followed by our group’s effort to address them. Using hybrid MBE that employs a metal-organic precursor, titanium isopropoxide, to supply both Ti and oxygen, epitaxial SrTiO3 (STO) films were grown directly on a graphene layer transferred on to bulk STO substrate. Films were then successfully exfoliated and transferred onto other substrates. I will also present sacrificial layer route to create oxide membranes resulting in room temperature dielectric constant of ~ 300. Finally, I will present several opportunities for materials physics and devices engineering using 3D nanomembranes. |