ON-OFF current ratio in Organic Ferroelectric Memory Diodes: the role of the Density of States

Solution processed Organic Ferroelectric Memory Diodes (OFMDs) are one of the most promising non-volatile memory elements for large area flexible electronics [1] - [4] . In OFMDs it is possible to improve the ON/OFF current ratio by orders of magnitude by simply increasing the charge injection barrier [5], [6], at the expenses of the data retention [7]. In this work we demonstrate that it is possible to tune the ON/OFF current ratio by orders of magnitude even in the case of very low charge injection barriers, paving the way for long-missing OFMDs.