Two‐Dimensional Conjugated Microporous Polymer with Structural Stability and Electrical Bistability for Rectifying Memory Array

Rectifying memory is an effective strategy to solve the cross‐talk issues of crossbar switch architecture during the integration procedure for high‐density data storage. Herein, a two‐dimensional (2D) conjugated microporous polymer (CMP) is proposed as an ideal resistive switching medium for integrated rectifying memory devices. Large‐area 2D CMP film is prepared using a surface‐confined polymerization method, featuring rewritable nonvolatile memory with a low set voltage in a graphene/CMP/metal diode. Importantly, this film exhibits outstanding structural stability during solvent immersion and other polymer coating, being suitable for solution‐processed multilayer polymer electronics. By directly stacking the CMP memristor with a poly(3‐hexylthiophene) rectifier, the integrated multilayer device shows desirable rectifying memory effect, effectively reducing the misreading issue induced by the cross‐talk in a crossbar array.