Admittance spectroscopy of polymer-nanoparticle non-volatile memory devices
2006 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 89, 133510- p.Article in journal (Refereed) Published
Nonvolatile resistive memory consisting of gold nanoparticles embedded in the conducting polymer poly(4-n-hexylphenyldiphenylamine) examined using admittance spectroscopy. The frequency dependence of the devices indicates space-charge-limited transport in the high-conductivity "on" state, as well as evidence for similar transport in the lower-conductivity "off" state. Furthermore, the larger dc capacitance of the on state indicates that a greater amount of filling of the midgap nanoparticle trap levels increases the overall device conductivity, leading to the memory effect.
Place, publisher, year, edition, pages
2006. Vol. 89, 133510- p.
Engineering and Technology Physical Sciences
IdentifiersURN: urn:nbn:se:liu:diva-77351DOI: 10.1063/1.2357560OAI: oai:DiVA.org:liu-77351DiVA: diva2:526384