Figure 4. CBRAM-based artificial synapses. a) A conceptual schematic of Ag-SiGe-Si CBRAM during switching. Reproduced with permission. [107] Copyright 2018, Springer Nature. b) Resistive switching characteristics of Ag/CrPS 4 /Au CBRAM. The inset is the schematic diagram of the device. c) The experiment data of LRS retention and the fitting curve of the result with exponential decay function. Reproduced under the terms of the Creative Commons Attribution 4.