Photosensitized oxidations or reductions at pand n-type GaAs and InP semiconductor electrodes of aromatic species in aprotic solvents leading to electrogenerated chemiluminescence (ECL) are described. The energy of the irradiating light equal to the bandgap energy of the semiconductor and the electrical energy input couple to produce excited states which eventually produce emission at shorter w...

Nitrogen is often used as an inert background atmosphere in solid state studies of electrode and reaction kinetics, of solid state studies of transport phenomena, and in applications e.g. solid oxide fuel cells (SOFC), sensors and membranes. Thus, chemical and electrochemical reactions of oxides related to or with dinitrogen are not supposed and in general not considered. We demonstrate by a st...

By performing an acid-base titration by coulometric generation of OHor H+ ions at an inert electrode in close proximity to the pH-sensitive gate of an ISFET, it is possible to determine the acid or base concentration of a solution using the ISFET as an indicator device for the equivalence point in the titration curve. Typical values for the titration time are 0.1 to 10 s for acid or base concen...

Biofilm are formed wherever there is some water in our environment: pipes, pipelines, tap water systems, air conditioning systems... Furthermore, the ecological and economical consequences are very important: energy losses, bacterial contamination, material deterioration. The aim of this work is to develop a new method to detect and monitor the biofilm formation. This method can also determine ...

Scanning electrochemical cell microscopy (SECCM) is a scanning-droplet-based technique that allows fluxes and/or interfacial reactivity to be measured and visualized with high spatiotemporal resolution. This minireview spotlights the use of SECCM for studying electrochemistry (nano)particles, highlighting recent works spanning multiple timescales (i.e., microseconds seconds) lengthscales nanome...

Abstract The concept of complementary resistive switching (CRS) has been proposed as a potential solution for mitigating the unwanted sneak path current intrinsic to large-scale crossbar memory arrays. In this study, CRS devices based on egg albumen are fabricated using non-inert Al layers top electrodes (TE). Al/Albumen/indium tin oxide (ITO) single sandwich structure achieves stable and repro...

Electrochemical processes occurring in aqueous solutions are critically dependent upon the interaction between the metal electrode and the solvent. In this work, density functional theory is used to calculate the potentials for which molecular water and its activation products adsorbed hydrogen and hydroxide are stable when in contact with an immersed Ni 111 electrode. The adsorption geometries...

Interface-type valence change memories (VCMs) are exciting candidates for multilevel storage in resistive random access (RRAM) and as artificial synapses neuromorphic computing. Several materials have been proposed VCM and, depending on the electrodes of choice, different switching mechanisms take place leading to resistance. Here, focus is La0.8Sr0.2MnO3–δ (LSM) perovskite particularly, role i...