Using a 2D perovskite oxide as a photoactive high-κ gate dielectric

Preparation and characterization of SNO nanosheets. a, Schematic illustration of the preparation and device fabrication processes. b, AFM image of SNO nanosheets. Inset: cross-sectional height profile along the white dashed line in b. c, TEM image of an SNO nanosheet. d,e, HRTEM image (d) and the corresponding SAED pattern (e) of the SNO nanosheet. f,g, Cross-sectional HRTEM image (f) and the corresponding SAED pattern (g) of SNO. Insets in f show the fast Fourier transform pattern of f and the schematic illustration of the lattice structure. Credit: Li et al. (Nature Electronics, 2024).

Two-dimensional (2D) superconducting materials have been …
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