The transmission probability of the free electron scattered by the quantum well in metal film may reveal the phenomenon of resonance. This transmission resonance, appearing above the vacuum level, can be probed by scanning tunnelling spectroscopy (STS). In this paper, STS is used to observe the transmission resonance on Ag films grown on Si(111)7 × 7 surfaces. The transmission resonance appears...

Fully-depleted SOI devices are being considered for low power applications due to their threshold voltage, sub-threshold slope and capacitance advantages over other technologies. However, the threshold voltage of a fully-depleted SOI device is a strong function of the silicon film and sacrificial oxide thicknesses. Thus, to fully realize the advantages of fully-depleted SOI devices in commercia...

A suction line of a refrigeration cycle with vertical upward flow is one area where the refrigeration oil tends to accumulate. This paper discusses the flow characteristics of the oil film in a pipe with the vertical upward flow. Air and oil two-phase flow is used as the first step of the study and the flow pattern of the oil film in the vertical upward flow is observed. The oil film thickness ...

Thin HfO2 films have been deposited on silicon via atomic layer deposition using anhydrous hafnium nitrate @Hf(NO3)4# . Properties of these films have been investigated using x-ray diffraction, x-ray reflectivity, spectroscopic ellipsometry, atomic force microscopy, x-ray photoelectron spectroscopy, and capacitance versus voltage measurements. Smooth and uniform initiation of film growth has be...

An implementation of plasmon resonances in nanocomposite thin films for biosensors is discussed. The effect is studied in the system of modified Au inclusions inside the Teflon matrix. The optical response of the nanocomposite thin film with inhomogeneous distribution of embedded coated Au spherical nanoparticles across the film thickness is analyzed. The absorption profiles are calculated in a...

Tear film stability and its interaction with the corneal surface play an important role in maintaining ocular surface integrity and quality of vision. We present a non-invasive technique to quantify the pre-corneal tear film thickness. A cMOS camera is used to record the interference pattern produced by the reflections from multiple layers of the tear film Principles of spatial autocorrelation ...

1Institute of Nano-Optoelectronics Research and Technology (INOR), School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia 2Department of Physics, College Of Education, Al-Mustansiriya University, Baghdad, Iraq 3Department of Electrical Engineering, College Of Engineering, Al-Mustansiriya, Baghdad, Iraq Abstract: in this work ZnO/Cu/ZnO transparent conductive multilayer films are p...

This study aimed to verify marginal fit and the effect of cement film thickness standardization on retention of provisional crowns made with prefabricated acrylic cylinders on abutments, using two temporary luting agents subjected or not to mechanical cycling. Provisional crowns were made from bis-acryl (Luxatemp Fluorescence) or methyl methacrylate (Duralay) resins on acrylic cylinders and mar...

We present a simplified point defect model to describe the growth of the primary passive oxide film on the surface of iron. The model postulates a reduced set of elementary interfacial reactions to describe the formation and dissolution of the oxide film. By casting the model in dimensionless form, we obtain a relatively small set of parameters that must be assigned values. Parameter values are...

Fourth order thin film equations can have late stage dynamics that are analogous to the classical Cahn–Hilliard equation. We undertake a systematic asymptotic analysis of a class of equations that describe partial wetting with a stable precursor film introduced by intermolecular interactions. The limit of small precursor film thickness is considered, leading to explicit expressions for the late...