(a) Schematic illustration of the energy band diagram of the CeO2–x/AlOy/Al junction under optical illumination stimulation.[17] Copyright (2015) John Wiley & Sons, Inc. (b) Mechanism of the ITO/CeO2–x/AlOy/Al optoelectronic memristor through light modulating.[18] Copyright (2017) American Chemical Society. (c) Photo-assisted shifting of perovskite Fermi level towards the valence band by hole trapping at interfacial trap sites.[52] Copyright (2018) John Wiley & Sons, Inc. (d) Schottky barrier profiles after light illumination and voltage stressing at the ITO/Nb:SrTiO3 heterojunction.[14] Copyright (2019) American Chemical Society. |