Visible-light-responsive layered titanium dioxide/tin indium oxide (TiO2/ITO) catalysts prepared on unheated glass slides by DC magnetron sputtering were investigated in this study. Transmittance spectra of the catalyst revealed that an interference pattern gradually appeared at wavelengths of 550-650 nm which indicated a strong light absorption up to this region. The red-shift may be ascribed ...

Heterogeneous photocatalysis using titanium dioxide as catalyst is an attractive advanced oxidation process due to its high chemical stability, good performance and low cost. When immobilized in a supporting material, additional benefits are achieved in the treatment. The purpose of this study was to develop a simple protocol for impregnation of TiO2-P25 on borosilicate glass spheres and evalua...

We fabricated a SiO2 embedded-TiO2 slanted nanograting sample using reactive ion etching and electron beam lithography techniques investigated their optical responses. Surface morphology for the gratings was monitored by scanning microscope (SEM). According to SEM observation, cross-section shape of like saw-tooth with angle 55°, periodicity determined be ?704 nm. In measurement, high order dif...

The horizontal growth of nanowires (NWs) using the surface-directed vapor-liquid-solid (SVLS) process has been demonstrated for a number of semiconductors and shows the unique ability of eliminating post-growth alignment steps. However, the epitaxial relationship between horizontal NWs and their underlying surface has not been well understood, as it becomes more convoluted in systems with close...

In this study, we use a global model to investigate the oxygen plasma cycle of PEALD of TiO2 thin films. The reactor geometry is an asymmetric capacitive coupled (CCP) radio frequency discharge and it was investigated the effect of discharge power in the range of 10-500 W, for a working pressure of 1.0 mbar, on plasma parameters: neutral and ion species densities. These are typical conditions f...

Carbon/molecule/TiO2/Au molecular electronic junctions show robust conductance switching, in which a metastable high conductance state may be induced by a voltage pulse which results in redox reactions in the molecular and TiO2 layers. When Ag is substituted for Au as the "top contact", dramatically different current/voltage curves and switching behavior result. When the carbon substrate is bia...

Nanoparticulate surfaces possessing antimicrobial and fungicidal properties under visible light illumination have found wide applications in a number of fields. In this study, titania nanotubes, as well as titania compact films were designed with pure Cu2O crystals in a mildly acidic copper acetate solution using a simple alternating current (AC) deposition approach. In this way, the thermally ...

In this work In2S3 and CdS nanoparticles were prepared by a simple hydrothermal method and then annealed at 500 °C for 2 h in an Ar gas until CdIn2S4(CdIS)-CdS nanocomposites were formed. Afterwards, efficiency of the as-synthesized CdIS-CdS nanocomposite in quantum dot-sensitized solar cells (QDSSCs) was evaluated. For this purpose, the as-prepared CdIS-CdS nanocomposites were deposited on TiO...

The Perovskite absorber layer, the electron transport layer (ETL), hole (HTL), and transparent conducting oxide (TCO) are major components that make up a solar cell. Between ETL HTL, is sandwiched, on which electron-hole pairs created after absorption of radiation. Despite substantial progress toward efficiency, long-term stability still remains serious concern. Present work focuses contributin...