Memristors Based on the Hybrid Structure of Oxide and Boron Nitride Nanosheets Combining Memristive and Neuromorphic Functionalities

Resistance random access memory (RRAM) based on a solid‐electrolyte insulator is an indispensable nanoscale device with promising potential in nonvolatile memory, multilevel switching, and neuromorphic applications. However, the random nature of the nucleation and growth of the conductive filaments (CFs) leads to instability of the switching parameter, which is the main obstacle to improving the performance of the RRAM. Herein, a novel approach to resolve this challenge by inserting boron nitride nanosheets (BNNSs) into the ZnO‐based device structure is reported. The hybrid structure with double switching layer device can combine memristive functions—nonvolatile bipolar memory, multilevel switching, and neuromorphic functionalities—simulating biological sensory systems in response to external stimuli. The overall device performance of the ZnO/BNNSs‐based memristor opens up a new path to improve the stability of oxide‐based RRAM, enabling hardware implementation of the nervous system.