Mechanochemical Processing of Highly Conducting Organic/Inorganic Composites Exhibiting Spin Crossover–Induced Memory Effect in Their Transport Properties (Adv. Funct. Mater. 33/2021)

Memory effect in ferroelectric polyvinylidene fluoride (PVDF) films via spin crossover probes

“…This indicates that the effect of the SCO probes upon the ferroelectric polymer is analogous to that found for other electroactive organic polymers. 27 In previous cases, we assigned the appearance of synergy to the volume change between LS and HS phases, resulting in a hysteretic change in the chemical pressure felt by the polymer skeleton, affecting the hopping mechanism. In the case of organic ferroelectrics, P S 2 also shows a pressure-dependence, as described by the equation…”

“…25 Hybrid-conducting organic polymers showed bistability in resistivity with a difference between low (LS) and highly conducting states (HS) of over one order of magnitude. 26,27 The volume expansion of the spin crossover probes changes the density of states near the Fermi level in conducting polymers, which is responsible for the change in electrical conductivity. This same strategy conferred bistability on composites of organic fluorescent polymers.…”

Bistable Spin‐Crossover Nanoparticles for Molecular Electronics

“…[ 76 ] However, most vertical devices exhibit extremely low ON/OFF ratios (conductance in the high conductive state compared to the low conductive state), due to the high insulating nature of the SCO complexes, requiring either high voltages, [ 76,78 ] or the preparation of ultra‐thin films, [ 77 ] increasing the risk of damaging the SCO complex or having short‐circuited devices. While some authors have used liquid electrodes, [ 79,80 ] compressed pellets, [ 81 ] or embedded NPs in conductive polymers to minimize the negative effects of vertical architectures, [ 82 ] a more versatile approach is the use of horizontal junctions, where the NPs and the contacts are in the same plane (Figure 4b). This configuration permits the electrical readout of any type of nanostructure since the gap between electrodes and their nature can be tuned.…”

Facile Photopolymerization of High-Molecular-Weight Polyaniline Composites Induced by g-C3N4 at Room Temperature for Trace Fe Ion Sensors

“…In recent decades, electrically conducting organic polymers have aroused more attention due to their attractive physicochemical properties and potential applications in advanced fields such as optics, electronics, and energy . Intrinsic conducting polymers (ICPs) with structural diversity can be obtained through high-precision molecular design and suitable synthesis methods, including quantities of conjugated polymers, such as polyaniline (PANI), polyacetylene (PA), polypyrrole (PPY), poly­( p -phenylene) (PPP), poly­( p -phenylenevinylene) (PPV), polythiophene (PTH), and their derivatives .…”