An Electroactive Metallo–Polypyrene Film As A Molecular Scaffold For Multi-State Volatile Memory Devices

Abstract

In this report, an anodically electropolymerized smart film is utilized for memory storage up to quaternary states via adjustable electrical commands. The ruthenium–terpyridine complex based polypyrene film is adherent and robust enough to withstand a large number of read–write cycles (∼5 × 102) and harsh temperature conditions (∼200 °C) for facile chip-lithography. Importantly, this polymeric system is a promising molecular alternative for silicon-based static random access memory (SRAM) and provides data storage density even higher than that generated by flip-flop and flip-flap-flop logic circuits. The film enables a data storage density of up to ∼4 × 1015 bits/cm2, controlled precisely by applied voltage and accessed optically. In this way, it fulfills the essential criteria for successful realization of an economically viable molecular chip with enormous storage capability as compared to analogous silicon based devices.

Flexible Multistate Data Storage Devices Fabricated Using Natural Lignin at Room Temperature

“…However, existing biopolymer ReRAM devices have low-density storage capability, which hinders their application as future memory devices. Thus, multilevel resistive switching is a promising method to achieve a high-density memory device . Although some papers have reported multilevel data storage using biopolymers, further development is still required.…”

“…Thus, multilevel resistive switching is a promising method to achieve a high-density memory device. 30 Although some papers have reported multilevel data storage using biopolymers, 31 further development is still required. Therefore, a multilevel memory device based on lignin could be an effective way to achieve high-density biopolymer ReRAM.…”

Light‐Activated Antibacterial Nanoscale Films: Metallo‐Organics for Catalytic Generation of Chemically Accessible Singlet‐Oxygen in Water

“…We and others have studied such surface‐confined metallo‐organic assemblies for their formation, structural features, electrochromic– and electron‐transport properties . These materials have also been applied in solar cells and molecular (Boolean) Logic and computing . Here, our observations indicate that such photo‐operated nanoscale coatings can potentially be used also for both the elimination of bacteria and the oxidation of organics in water.…”

Stabilization of Pristine Low Resistive State in a Ruthenium(II)‐Polymer of a Hexadentate Schiff Base Ligand: Synthesis, Characterization, and Application as Non‐Volatile Memory Device

“…Ruthenium based complexes are reported as a very good electron acceptor in various literature. [49][50][51][52][53][54] Thus organometallic polymer conjugates of Ruthenium and other transition elements based complexes are proven redox reaction. In Ru(II)-Poly based devices, we have observed redox reactions leading to resonance tunnelling in positive biasing at around 2V as well as the memory switching properties.…”