Nanoscale Organic Ferroelectric Resistive Switches
2014 (English)In: The Journal of Physical Chemistry C, ISSN 1932-7447, E-ISSN 1932-7455, Vol. 118, no 6, 3305-3312 p.Article in journal (Refereed) Published
Organic ferroelectric resistive switches function by grace of nanoscale phase separation in a blend of a semiconducting and a ferroelectric polymer that is sandwiched between metallic electrodes. In this work, various scanning probe techniques are combined with numerical modeling to unravel their operational mechanism. Resistive switching is shown to result from modulation of the charge injection barrier at the semiconductor-electrode interfaces. The modulation is driven by the stray field of the polarization charges in the ferroelectric phase and consequently is restricted to regions where semiconductor and ferroelectric phases exist in close vicinity. Since each semiconductor domain can individually be switched and read out, a novel, nanoscale memory element is demonstrated. An ultimate information density of similar to 30 Mb/cm(2) is estimated for this bottom-up defined memory device.
Place, publisher, year, edition, pages
American Chemical Society (ACS), 2014. Vol. 118, no 6, 3305-3312 p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:liu:diva-116207DOI: 10.1021/jp409757mISI: 000331493400048OAI: oai:DiVA.org:liu-116207DiVA: diva2:797886
Funding Agencies|European Community 2015-03-252015-03-252015-05-12Bibliographically approved