Photocatalysis‐Induced Nanopores toward Highly Reliable Organic Electrochemical Metallization Memory

Abstract

Organic electrochemical metallization (ECM) memory that possesses high reliable switching performance is in great demand for the future smart wearable and flexible electronics. The resistive switching (RS) behavior of organic ECM memory is determined by the micro‐morphology evolution of metal conductive filaments (CFs) during the operating process. However, the morphology controllability of CFs is generally deteriorated by their random distribution and unexpected overgrowth. Herein, a kind of nanoporous PVC/TiO2 nanocomposite is developed using photocatalytic method for improving the RS reliability of organic ECM memory. The introduction of engineered nanopores can effectively simplify the CFs morphology to obtain excellent uniformity, good retention, and low cycling degradation. In addition, taking advantage of the multilevel RS behavior and 200 × 200 memristive array artificial neural network (ANN), alphabetic data storage and image pattern recognition are successfully realized. The proposed approach is expected to provide novel platforms for the advance of highly reliable flexible electronics and ANN for intelligence applications.

Recent progress of organic artificial synapses in biomimetic sensory neural systems

“…3(b). 90 Furthermore, researchers have innovated flexible and ecofriendly organic memristors by utilizing biodegradable materials. Oh et al fabricated an organic synaptic device using the structure Ag/PVA/Au, as depicted in Fig.…”

Doppler Frequency‐Shift Information Processing in WOx‐Based Memristive Synapse for Auditory Motion Perception

“…[24][25][26][27][28] A variety of synaptic plasticity functions can be emulated in memristors, which provides an ideal platform to biorealisticaly process the spatiotemporal sensory patterns. [29][30][31][32][33][34][35] Taking the auditory system as a typical example, it is one of the most efficient sensory systems for human being. The processing of auditory spatiotemporal patterns is crucial to decode and discriminate the auditory information, such as speech recognition, sound localization, and motion perception.…”