6 papers
2D Canonical Approach for Beating the Boltzmann Tyranny Using Memory
Rafael Schio Wengenroth Silva, Soumen Pradhan, Fabian Hartmann +4
The 60 mVdecade subthreshold limit at room temperature, coined as the Boltzmann tyranny, remains a fundamental obstacle to the continued down-scaling of conventional transistors…
A New Approach to Characterize Charge Transport and Hysteresis in Perovskite Solar Cells
Gabriel L. Nogueira, Victor Lopez-Richard, Luiz A. Meneghetti +2
Perovskite solar cells (PSCs) have emerged as a promising photovoltaic technology, already achieving efficiencies surpassing 25%. However, effects such as hysteresis are commonly o…
Microscopic Modeling of Polarization Dynamics in Leaky Dielectrics: Insights into Ferroelectric-Like Behavior
Igor Ricardo Filgueira e Silva, Ovidiu Lipan, Fabian Hartmann +2
Based on a microscopic model of nonequilibrium carrier generation in a leaky dielectric, we analytically derive hysteresis loops for the dielectric response of non-polar, non-ferro…
From Memory Traces to Surface Chemistry: Decoding REDOX Reactions
Ana Luiza Costa Silva, Rafael Schio Wengenroth Silva, Lucas Augusto Moisés +4
Gas and moisture sensing devices leveraging the resistive switching effect in transition metal oxide memristors promise to revolutionize next-generation, nano-scaled, cost-effectiv…
Accuracy Bottlenecks in Impedance Spectroscopy due to Transient Effects
Victor Lopez-Richard, Soumen Pradhan, Leonardo K. Castelano +4
Impedance spectroscopy is vital for material characterization and assessing electrochemical device performance. It provides real-time analysis of dynamic processes such as electrod…
Beyond equivalent circuit representations in nonlinear systems with inherent memory
V. Lopez-Richard, S. Pradhan, R. S. Wengenroth Silva +4
Basic multimode impedance analysis grounded in the availability of nonequilibrium charge carriers and their retarded path towards equilibrium is used to access the inadequacy of eq…