Water-soluble conjugated polymers as active elements for organic nonvolatile memories

Eco-friendly solvents are very important in the green fabrication of organic electronic devices. However, their use in the preparation of organic nonvolatile memories (ONVMs) is rare. In this article, three water-soluble donor–acceptor conjugated polymers (WSCPs) have been synthesized, which can be used as switching layers to prepare ONVM devices with water as a solvent. The as-fabricated memory devices show large ON/OFF ratios, good endurance and long retention. Our success could provide a green way to fabricate high-performance ONVMs.