Silver and Copper Microstructures: The Workfunction’s Effect

Abstract

Abstract:To understand the growth mechanism of Ag and Cu nanowires we have studied the effect of workfunction on the metal nanowire growth by XRD, SEM and Potentiostat. Under the same potential and overpotential, the metal with a smaller workfunction has a higher current density, i.e. current density for Ag is higher than of Cu nanowires. Likewise metals, the plane with smaller workfunction grows faster than with the larger workfunction, thus the preferential growth plane is (220) for both metals. We argued that the current arises from electrons tunneling from metal surface to hydrated metal and hydrogen ions. The metal with a smaller workfunction has a thinner barrier for tunneling, thus leading to a higher current density. It is found that deposition method have no such effect on the structure of deposited nanowires.

Synthesis, Characterization, Antimicrobial and Anticancer Activities of 14-Membered Macrocyclic Schiff Base Metal Complexes

“…Knoevenagel condensation between aldehyde and β-diketone act as dicarbonyls and fruitful source of macrocyclic polyaza ligand systems. Among the various β-diketones, curcumin is a versatile compound as their traditional consequence in medicinal field [10][11][12][13][14][15][16][17]. A search through literature reveals that more have been posted on the studies of Schiff bases [18][19][20].…”