Soni, Rohit Meuffels, Paul Petraru, Adrian Hansen, Mirko Ziegler, Martin Vavra, Ondrej Kohlstedta, Hermann Jeong, Doo Seok 2024-01-20T11:02:39Z 2024-01-20T11:02:39Z 2021-09-01 2013-12 2040-3364 https://pubs.kist.re.kr/handle/201004/127413 Bipolar switching behaviours of electrochemical metallization (ECM) cells with dual-layer solid electrolytes (SiOx-Ge0.3Se0.7) were analyzed. Type 1 ECM cell, Pt (bottom electrode)/SiOx/Ge0.3Se0.7/Cu (top electrode), exhibited typical eightwise current-voltage (I-V) hysteresis of ECM cells whereas Type 2 ECM cell, Pt (bottom electrode)/Ge0.3Se0.7/SiOx/Cu(top electrode), showed counter-eightwise hysteresis. In addition, absolute off-switching voltage in Type 2 cell is lower than that in Type 1 cell while on-switching voltage in both cells is almost the same. An attempt to understand this electrolyte-stack-sequence-depending switching polarity reversal was made in terms of the ECM cell potential change upon the electrolyte stack sequence and the consequent change in Cu filament growth direction. Relevant experimental evidence for the hypothesis was obtained regarding the switching behaviours. Furthermore, given the switching polarity reversal, feasibility of serial complementary resistive switches was also demonstrated. English ROYAL SOC CHEMISTRY COMPLEMENTARY RESISTIVE SWITCHES REAL-TIME OBSERVATION ATOMIC SWITCH DYNAMIC GROWTH/DISSOLUTION CONDUCTIVE FILAMENTS WORK FUNCTION MEMORY CELLS NANOIONICS PLASTICITY SYNAPSES Bipolar switching polarity reversal by electrolyte layer sequence in electrochemical metallization cells with dual-layer solid electrolytes Article 10.1039/c3nr03993e 1 NANOSCALE, v.5, no.24, pp.12598 - 12606 NANOSCALE 5 24 12598 12606 scie scopus 000327507900073 2-s2.0-84888326698 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article COMPLEMENTARY RESISTIVE SWITCHES REAL-TIME OBSERVATION ATOMIC SWITCH DYNAMIC GROWTH/DISSOLUTION CONDUCTIVE FILAMENTS WORK FUNCTION MEMORY CELLS NANOIONICS PLASTICITY SYNAPSES