Role of the solid electrolyte composition on the performance of a polymeric memristor

Organic Memristor Devices for Logic Elements With Memory

“…When biased negatively (reduction potential of PANI is approximately +0.1 V), it decreases its conductivity. In our first elements the conductivity ratio in saturated conducting and insulating states was about 100, while improvement in the material choice and device construction has resulted in the subsequent increase of this ratio to approximately 1000 [Berzina et al(2010)]. Experimental temporal dependences of the output current at fixed positive (higher than oxidation potential) and negative (any) voltages is shown in Fig.…”

Adaptive polymeric system for Hebbian-type learning

“…The spectra of polymers which have been acquired in the fingerprint region (600-200 cm -1 ) are reported in figure 1. The absorption peaks have been assigned according to literature [12][13][14] We note, as we have already reported [15], that in the LiBF 4 doped form of PANI a strengthening of the 1150 cm −1 peak takes place which is associated with high electrical conductivity and a high degree of electron delocalization [14]. The matrix has been prepared starting from a highly concentrated PEO gel, which dried in a vacuum chamber, forms a sponge-like structure subsequently filled with a PANI solution.…”

Reconfigurable Memristive Device Technologies

“…There are numerous polymers that have been investigated for memristive devices, a list of which is rapidly growing, including polyethylene dioxythiophene:polystyrene sulfonic acid (PEDOT:PSS) [204], polyvinyl alcohol (PVA) [205], Co(III) polymer with an azo-aromatic backbone [206], p-toluenesulfonic acid (TsOH)-doped poly(Schiff base) [207]], poly[2-methoxy-5-(2'-ethylhexyloxy)-(p-phenylenevinylene)] (MEH:PPV) [208], polyaniline with Li+-doped polyetheneoxide (PANI:PEO) [209], [210], dithienopyrrole and benzodithiophene polymers [70], to name only a few (see [199] for a review of many of the polymer-based memristors to date). Techniques for deposition of these polymeric materials are solution-based processes, such as spin coating, dip coating, spray coating, ink-jet printing, roller coating, and blade coating, rather than vacuum deposition methods, due to the likelihood of material decomposition/ degradation during deposition.…”