Electronic conduction and electrocatalysis by supramolecular tetraruthenated copper porphyrazine films

Formation of Cupric Oxide Films on Quartz Substrates by Annealing the Copper Films

In the present work, cupric oxide (CuO) films were obtained through thermal annealing of the copper (Cu) films deposited on quartz substrates by DC magnetron sputtering method. The annealing was performed in air atmosphere for different times ranging from 60-240 min at temperature of 400 ºC. The influence of annealing times on structural and morphological properties of the films was investi...

Thin Films of Supramolecular Nanocomposites

Controlling Photoconductivity in PBI Films by Supramolecular Assembly.

Perylene bisimides (PBIs) self-assemble in solution. The solubility of the PBIs is commonly changed through the choice of substituents at the imide positions. It is generally assumed this substitution does not affect the electronic properties of the PBI, and that the properties of the self-assembled aggregate are essentially that of the isolated molecule. However, substituents do affect the sel...

Conduction electron spin-flip scattering by impurities in copper

We have measured the concentration dependence of the transmission conduction electron spin resonance linewidth of copper doped with Li, Zn, Ga, Ge, As, Ni, and Ti. In each case, we find a linear concentration dependence which allows us to determine a spin-flip cross-section, 03C3sf, for each impurity. These crosssections, together with those deduced from linewidth data previously published for ...

Fluorescent colour modulation in Zn(II)-based metallo-supramolecular polymer films by electronic-state control of the ligand.

A series of Zn(II)-based metallo-supramolecular polymers were prepared by 1 : 1 complexation of Zn(ClO4)2 and bis(terpyridine)s with electron-donating (alkoxy) or electron-withdrawing (cyano) groups at the 6-position of the peripheral pyridine moiety. The Zn(II)-based polymers displayed relatively high quantum yields (ΦPL = 0.68-0.76) in solution at room temperature. More importantly, they show...