In recent years, the demand for thin film coatings on large area substrates has been rapidly increasing. Coating is some times required to make an object harder, or to provide the surface with particular electrical and optical properties. Hence, research on thin film science has received much attention due to its tremendous applications in modern technology. The importance of coatings and the s...

The selenization of Cu-Zn-Sn-S nanocrystals is a promising route for the fabrication of low-cost thin film solar cells. However, the reaction pathway of this process is not completely understood. Here, the evolution of phase formation, grain size, and elemental distributions is investigated during the selenization of Cu-Zn-Sn-S nanoparticle precursor thin films by synchrotron-based in situ ener...

This paper reports on a Ga2O3–Cu2O composite thin film that allows the destruction of both Gram negative and Gram positive bacteria via a dual mechanism involving Ga ions that disrupt Femetabolism pathways in bacteria as well as through the reactive oxygen species generated by possible Fenton type reactions that are mediated by Cu ions. This dual mechanism allowed the highly transparent composi...

TiO2 films are extensively studied because of their interesting chemical, electrical and optical properties. TiO2 is a high bandgap semiconductor that is transparent to visible light and has excellent optical transmittance. TiO2 has high refractive index and good insulating properties, and as a result it is widely used as protective layer for very large scale integrated (VLSI) circuits and for ...

Spin-polarized low energy electron microscopy (SPLEEM) is a powerful technique for the study of the magnetic domain structure of ferromagnetic surfaces, thin films and ferromagnetic / nonferromagnetic thin film systems. The unique feature of this instrument is the combination of magnetic with topographic imaging on an atomic depth scale level, and with structural information via low energy elec...

The Copper Indium Gallium diSelenide (CIGS) thin film solar cells are considered in this chapter. The interest in Cu(In1-x, Gax)Se2 thin film solar cells has increased significantly due to its promising characteristics for high performance and low cost. It is aimed to present an extensive evaluation on CIGS nanocrystalline bulk semiconductor and its application as an absorber layer for thin fil...

Periodically structured electrodes are typically introduced to thin-film photovoltaics for the purpose of light management. Highly effective light-trapping and optimal in-coupling of light is crucial to enhance the overall device performance in such thin-film systems. Here, wavelength-scale structures are transferred via direct laser interference patterning to electron-selective TiO2 electrodes...

Nitrogen doped diamond-like carbon (N-DLC) thin films were prepared on n-Si substrates using a filtered cathodic vacuum arc deposition method. Square wave anodic stripping voltammetry (SWASV) was used to trace Pb and Cu in a neutral KCl solution with pH 7. Stripping voltammograms of Pb and Cu were analyzed in terms of metal concentration, deposition time and deposition potential. The SWASV resu...

Cu 2 ZnSnS 4 (CZTS) thin films were deposited using the cosputtering technique.The growth parameters, such as working pressure, target powers, and postannealing atmosphere, were optimized for CZTS films deposition. A comparative study between post annealing using sulfur vapor in a quartz tube furnace and sulfurization chamber using H 2 S gas was carried out to optimize the kesterite Cu 2 ZnSnS ...

Efficient photocatalytic disinfection of Escherichia coli O157:H7 was achieved by using a C70 modified TiO2 (C70-TiO2) hybrid as a photocatalyst under visible light (λ > 420 nm) irradiation. Disinfection experiments showed that 73% of E. coli O157:H7 died within 2 h with a disinfection rate constant of k = 0.01 min(-1), which is three times that measured for TiO2. The mechanism of cell death wa...