$${\text{Co}}_{x}{\text{Zn}}_{1-x}{\text{O}}$$ (x = 0.00, 0.04, 0.08, and 0.10) thin films were sprayed pyrolysis onto ordinary glass substrates. The micro-Raman spectroscopy revealed the presence of wurtzite structure in all films. UV–Vis investigation showed good optical transmittance visible region with increase absorption bands related to internal $${\text{Co}}^{+2}$$ d–d transitions over C...

The transparent Zinc Oxide (ZnO) thin films were deposited by multi-step sol-gel method and the effect of sol concentration on structural, morphological and optical properties were investigated. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to characterize structures and morphologies of the as-deposited films. The crystallographic orientation of the ZnO films show...

In this work, chemical oxidation was used to polymerize conjugated polymer "Polypyrrole" at room temperature Graphene nanoparticles were added by in situ-polymerization get (PPY-GN) nano. Optical and Electrical properties studied for the nanocomposites. optical of nanocomposites UV-Vis spectroscopy wavelength range (200 -800 nm). The result showed absorption spectra normally determined that max...

In order to potentiate implementations in optical energy applications, flexible polymer composite films comprising methyl cellulose (MC), polyaniline (PANI) and silver nanoparticles (AgNPs) were successfully fabricated through a cast preparation method. The structure of the film was confirmed by X-ray diffraction infrared spectroscopy, indicating successful incorporation AgNPs into MC/PANI blen...

Inorganic hole-transport layers (HTLs) are widely investigated in perovskite solar cells (PSCs) due to their superior stability compared the organic HTLs. However, p–i–n architecture when these inorganic HTLs deposited before perovskite, it forms a suboptimal interface quality for crystallization of which reduces device stability, causes recombination, and limits power conversion efficiency dev...

Thermoelectric materials are a promising class of direct energy conversion materials, usually consisting of highly doped semiconductors. The key to maximizing their thermal to electrical energy conversion lies in optimizing three inter-related material properties, thermal conductivity, electrical conductivity, and Seebeck coefficient. All three properties are affected by the carrier concentrati...

We report the synthesis of hybrid thin films based on Poly(MethylMethAcrylate) (PMMA) and Poly(VinylAlcohol) (PVA), doped with different concentrations titanium dioxide nanoparticles (TiO2 NPs). As-prepared (PMMA-PVA) by TiO2 NPs (wt.% = 2%, 4%, 8%, 16%) are deposited glass substrate. Transmittance (T%), reflectance (R%), absorption coefficient (?), optical constants (n k), dielectric functions...

• The use of thermal evaporation technology for the deposition In 2 S 3 and Cu-In thin films. ?-In phase with a tetragonal structure is found at room temperature. Various amounts copper element were used to improve effect doping on physical properties. effective promoted performance indium sulfide. this paper, vacuum technique was investigate doped (Cu) as window layer film solar cells. amount ...