Doping memory effect

Appropriate parameters should follow linear Arrhenius behavior as a function of temperature (69). The model must demonstrate oxidant pressure dependence (78), memory effects as a function of growth temperature (83), and substrate doping effects on oxidation (84). 

Sarma, D. D. et al. 2004 Direct observation of large electronic domains with memory effect in doped manganites. Phys. Rev. Lett. 93, 097202. (doi 10.1103/PhysRevLett.93.097202)... 

More evidence that thermal equilibrium is not attained is the existence of a memory effect. It has been observed that the kinetics of doping depends on the wait time spent in the insulating state [15]. After 105 s in the undoped state, steady-state behavior is still not obtained. This means that a slow relaxation process is taking place in the film maintained in the insulating state. This effect has been quite well characterized, but no microscopic explanation has yet been given [16]. 

A study of the memory effect , the phenomenon that makes EB-1 transform into ES-I and EB-11 into ES-11 upon doping, and reversibly so, has been undertaken as well [305]. RDF analysis reveals differences between EB-1 and EB-11 in the range 2.5 A, i.e. in intrachain coiTelations. This is attributed to differences in chain conformation. (Ring tilt angles and C—N—C zigzag... 

Nishida K, Atake 1, Li D, Shishido T, Oumi Y, Sano T, Takeira K (2008) Effects of noble metal-doping on Cu/ZnO/Al203 catalysts for water-gas shift reaction. Catalyst preparation by adopting memory effect of hydrotalcite. Appl Catal A 337 48-57... 

The memory effect of the nanocomposites of functionalized carbon nanoshells (f-CNSs) mixed with poly(3,4-ethylenedioxythiophene) doped with polystyrenesulfonate (PEDOT PSS) polymer has been studied by Avila-Nino [1]. The functionalized carbon nanoshells were synthesized... 

Several workers published memory switching effects in metalfree [85, 156-159] and metal-doped polymer or carbon films [117,158] made in the form of a sandwich metal-polymer-metal. Recently, it has been found that these effects are not likely related to the intrinsic properties of the organic (dielectric) film [157]. More details on composite metal/polymer films can be found elsewhere [159]. 

In addition to above discussed applications, doped and undoped CPs also find extensive use in the other areas (Figure 1.66) like DSSCs, field-effect transistors (FETs), TFTs, display devices, catalysis, ECs, water purification, electroactive materials (electrorheological fluids, actuators, artificial muscles), tissue engineering scaffolds, memory devices, photocatalysis (degradation and synthesis), thermoelectric generation, electrochemical batteries, etc. [15,16,39,52,54,56,57,61,62,67,82,84,107,109, 112,113,149,153,162,169,240,244,309,314,387,401,422,423,446,514, 516,546,547,550,557,567-571], some of them will be elaborated in details in the following chapters. 

Poly(isothianaphthene) (PITN) can be reversibly cation- and anion-doped without decomposition of the material. PITN with these two reversible and stable redox states of different colors is a potential candidate for electrochromic displays. The reversible redox reaction of PITN and the existence of a relatively stable residual charge can be used in electronic devices, such as memories with learning effect (reading-writing device) [253]. 

---