Fused Pyrrole Core: A New Class of Quadrupolar Organic Moieties as Potential Resistive Memory Elements

Abstract

A series of 1,4-Dihydro pyrrole[3,2,b]pyrroles derivatives were synthesized to elucidate their structureproperty relationship and evaluate their feasibility as resistive memory elements. Smart structural modifications through judicious choice of functional groups was carried out to establish a rationale between molecular framework in a quadrupolar A-π-D-π-A configuration and its influence on the electronic and opto-electronic properties. The electrical switching characteristics of these materials have been evaluated by embedding them in a two-terminal metal-insulator-metal configuration and the results confirm that, the materials can mimic the functions of a permanent, rewriteable flash and dynamic-random access memories, which are expected to fulfil the requirements for low-cost flexible information storage applications.