https://libdoc.whz.de/opus4 OPUS documents https://libdoc.whz.de/opus4/index/index/ Thu, 22 Feb 2024 13:56:09 +0100 Thu, 22 Feb 2024 13:56:09 +0100 Study on the Electrical Conduction Mechanism of Unipolar Resistive Switching Prussian White Thin Films https://libdoc.whz.de/opus4/frontdoor/index/index/docId/16598 The electrical conduction mechanism of resistive switching Prussian white (PW) thin films obtained by the electrodeposition method was examined by AC impedance spectroscopy and DC current–voltage measurements. Using an electrode tip to contact PW grown over Au, robust unipolar resistive switching was observed with a current change of up to three orders of magnitude, high repeatability, and reproducibility. Moreover, electrical impedance spectroscopy showed that the resistive switching comes from small conductive filaments formed by potassium ions before the establishment of larger conductive channels. Both voltammetry and EIS measurements suggest that the electrical properties and conductive filament formation are influenced by defects and ions present in the grain boundaries. Thus, PW is a potential material for the next generation of ReRAM devices. Lindiomar B. Avila; Pablo C. Serrano Arambulo; Adriana Dantas; Edy E. Cuevas-Arizaca; Dinesh Kumar; Christian K. Müller article https://libdoc.whz.de/opus4/frontdoor/index/index/docId/16598 Thu, 22 Feb 2024 13:56:09 +0100 Resistive Switching in Electrodeposited Prussian Blue Layers https://libdoc.whz.de/opus4/frontdoor/index/index/docId/16633 Prussian blue (PB) layers were electrodeposited for the fabrication of Au/PB/Ag stacks to study the resistive switching effect. The PB layers were characterized by different techniques to prove the homogeneity, composition, and structure. Electrical measurements confirmed the bipolar switching behavior with at least 3 orders of magnitude in current and the effect persisting for the 200 cycles tested. The low resistance state follows the ohmic conduction with an activation energy of 0.2 eV. Lindiomar Borges Avila; Christian K. Müller; Dirk Hildebrand; Fabrício L. Faita; Bruna F. Baggio; Cristiani C. Plá Cid; André A. Pasa article https://libdoc.whz.de/opus4/frontdoor/index/index/docId/16633 Thu, 22 Feb 2024 13:53:36 +0100