Electrical Re-Writable Non-Volatile Memory Device based on PEDOT:PSS Thin Film.

Iulia Salaoru,Christos Christodoulos Pantelidis

doi:10.3390/mi11020182

Abstract

In this research, we investigate the memory behavior of poly(3,4 ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) cross bar structure memory cells. We demonstrate that Al/PEDOT:PSS/Al cells fabricated elements exhibit a bipolar switching and reproducible behavior via current–voltage, endurance, and retention time tests. We ascribe the physical origin of the bipolar switching to the change of the electrical conductivity of PEDOT:PSS due to electrical field induced dipolar reorientation.

Highlights

Today, electronic memory elements are an essential component of all electronic devices, from computers to toys and from health monitors to space technology
We report a bipolar switching and reproducible behaviour in PEDOT:PSS-based elements (a) metal/PEDOT:PSS/metal structures and (b) switching mechanisms reported in the cross literature bar structure memory cells
The memory cells investigated here are based on a Al (100 nm) top electrode (TE)/PEDOT:PSS

Summary

Introduction

Electronic memory elements are an essential component of all electronic devices, from computers to toys and from health monitors to space technology. Further suggestions, i.e., diffusion of Au atoms into an active core during the fabrication procedure have been proposed On another side, Jeong et al [7] presented a bipolar switching operation of devices based on PEDOT:PSS (70 nm thickness) with Al as bottom and top electrodes. Jeong et al [7] presented a bipolar switching operation of devices based on PEDOT:PSS (70 nm thickness) with Al as bottom and top electrodes In this case, the authors suggested that both interfaces play a key role in the switching. The memory capacity of the fabricated cells was elucidated through consider these changes and we ascribe the physical origin of the bipolar switching to the change of the comprehensive electrical tests, i.e., current–voltage characteristics, endurance, and retention time. We consider these changes and we ascribe the physical origin of the bipolar switching to the Micromachines 2020, 11, 182

Experimental

Results and Discussion

Endurance

Conclusions