Electrochemical synthesis of Ag/Co multilayered nanowires in porous polycarbonate membranes

Template Epitaxial Growth of Thermoelectric Bi/BiSb Superlattice Nanowires by Charge-Controlled Pulse Electrodeposition

“…There exist rough layer edges along the SLNW, and this kind of edge was also observed in Ag/Co multilayered nanowires by Valizadeh et al and was attributed to a combination of different conditions. 21 Our previous study proved that the diameter of the BiSb nanowire strongly depends on the deposition voltage; the higher the voltage the smaller the diameter. 30 From the kinetic perspective of the deposition process, it was considered that at higher deposition voltages, the reduced ions have a shorter diffusing time and, subsequently, a shorter diffusing length on the surface of the nanowire front, which induces a smaller diameter of the BiSb segment, while the lower deposition voltage induces a larger diameter of the Bi segment.…”

“…21 The thickness of the Ni/Cu bilayers increased with the growing nanowires although the modulating time was kept constant. 18 To ensure a uniform bilayer thickness along the whole SLNW, we used the electrical charge transferred during the pulsation voltage to control the segment length of each component.…”

“…2,8,9,11 The electron and phonon properties of SLNWs can be manipulated by many parameters, such as segment length, wire diameter, crystal orientation, bilayer thickness, and so on. [16][17][18][19][20][21][22][23][24][25] However, all these SLNWs are synthesized by modulating direct electrodeposition, the crystallinity is relatively not very high, and the interfaces between segments are not distinct. The pulsed electrodeposition, with various processing parameters and higher instantaneous current density, exhibits marked advantages over dc electrodeposition in controlling the deposited grain size, surface morphology, and preferred orientation, and proved to be a viable technological tool in materials engineering.…”

Co/Cu Nanowire Systems for GMR Sensing Applications

“…As a main results, it was shown that the current efficiency of Cu measured for all the potential range addressed here in the TPED mode is very close to 100%; instead, it is apparent for Co that a consistent reduction has been observed -the Co TPED efficiency ranges between 60% to nearly 70%. In a first instance, the significant reduction of Co current efficiency could be accounted as a re-dissolution of Co during the Cu deposition cycle (Valizadeh et al, 2002). This hypothesis is corroborated by the presence of a high anodic peak observed at the beginning of each Cu deposition cycle -the peak shows itself in the first instants after the potential switches.…”

Optimization Study on Supercritical Electrodeposition of Nickel Nanowire Arrays Using AAO Template

“…It is of great interest in the trend toward miniaturization and densification of electronic parts and components which tend to become smaller in size with a larger number of individual devices [2]. Thus, porous alumina films and nanocomposites based on AAO membranes could be used as perfect model objects for a deeper understanding of processes on nanoscaled in spatially ordered systems [3].…”