We theoretically study the optical conductivity of tightbinding model which has two types hopping integrals arranged in Fibonacci sequence. Due to lack translational symmetry, many peak structures appear as well density states. When ratio is large, self-similar structure appears conductivity. This implies that response between high-energy bands related within low-energy bands, should originate ...

Copper oxide (CuO) nanostructures are of particular interest because of their interesting properties and promising applications in batteries, super capacitors, solar cells, gas sensors, bio sensors, nano fluids and catalysis. In Recent past, more efforts have been received to design materials with different properties which is dependent on morphology.  In this work cupric oxide nano flakes were...

We show that 1=f noise is produced in a 3D electron glass by charge uctuations due to electrons hopping between isolated sites and a percolating network at low temperatures. The low frequency noise spectrum goes as ! with slightly larger than 1. This result together with the temperature dependence of and the noise amplitude are in good agreement with the recent experiments. These results hold t...

Poly(3-hexylthiophene) (P3HT) matrix has been chemically doped (redox doping) by ferric chloride (FeCl3) with different molar concentrations to get P3HT–FeCl3 charge-transfer complexes. The effect of redox doping on photo-physical, structural, and morphological properties and dc electrical conductivity of P3HT matrices has been examined. The dc conductivity has been measured on films of pristin...

Glasses of the system x (SnO) (50-x)PbO : 50V2O5 were prepared by melt quenching in the range x = 0 mole% to 15 mole%. Measurements are reported for dc electrical conductivity for the above compositions in the temperature range 300K-500K. The experimental results are analyzed with reference to various theoretical models proposed for dc electrical conduction in amorphous semiconductors. The anal...