Figure 2
From: Chemical termination and interfacial redox behavior of freestanding SrTiO3
(a) Schematic of the exfoliation process, from sample fabrication and preparation, to exfoliation and transfer. (b) XRD around the (002) peak of an all-perovskite sample before exfoliation, of the remaining STO membrane attached to PDMS gel film, and of the STO membrane transferred to \(\hbox {Al}_2\) \(\hbox {O}_3\) host substrate (from top to bottom, shown spectra are offset along the y-axis for clarity). (c) Photography, and (d) light microscopy image of an exfoliated STO membrane attached to PDMS gel film. (e) HAADF-STEM image of an STO membrane on a silicon nitride membrane TEM grid, and (f) TEM diffraction pattern of the same sample with crystallographic orientation histogram as inset.
