An Integrated Approach to Characterizing ZnO Nanostructures by Thin-film XRD Techniques and SEM

Structural Characterization of Steatite Vessels of Shadyakh by XRF, XRD and SEM Techniques

Using the stones to make tools and vessels dated back to Paleolithic and Neolithic periods. Stones so called soft stones, along with the alabaster, are one of the most famous stones that have been used to produce vessel in Near East, where they are in use currently in different applications. Soft stone vessels reach to highest level of flourishing during the Bronze Age and its geographical exch...

Exploration of ZnO and ZnMgO/ZnO Thin Film Transistors

Al-Doped ZnO Thin Film Transistors by Thermal Evaporation

In this paper, Al-doped ZnO thin film transistors (AZO-TFT) were fabricated by the thermal evaporation growth of AZO channel layer on a silicon substrate at temperatures below 250°C. A SiO2 dielectric layer grown by the horizontal furnace was used as a gate. An active layer thickness of 10nm was measured by Atomic Force Microscopy (AFM), and its surface had root mean square (rms) roughness 12.6...

ZnO-based transparent thin-film transistors

Highly transparent ZnO-based thin-film transistors ~TFTs! are fabricated with optical transmission ~including substrate! of ;75% in the visible portion of the electromagnetic spectrum. Current– voltage measurements indicate n-channel, enhancement-mode TFT operation with excellent drain current saturation and a drain current on-to-off ratio of ;10. Threshold voltages and channel mobilities of de...

Orthogonal Thin Film Photovoltaics on Vertical Nanostructures

Decoupling paths of carrier collection and illumination within photovoltaic devices is one promising approach for improving their efficiency by simultaneously increasing light absorption and carrier collection efficiency. Orthogonal photovoltaic devices are core-shell type structures consisting of thin film photovoltaic stack on vertical nanopillar scaffolds. These types of devices allow charge...