In this paper we report on the study of electrical switching in thin film MOM structures on the basis of transition metal oxides under AC conditions. The materials studied are Nb2O5, TiO2, and WO3, obtained by electrochemical oxidation of the metal, as well as MoO3, obtained by thermal deposition in vacuum. Transformations of dynamic switching characteristics with changes in temperature and fre...

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Tetracene thin film transistors with rare earth oxide (Nd2O3) as gate dielectric is reported in this work. Rare earth oxide with high dielectric constant and low leakage current improve the performance of the organic thin film transistors (OTFTs). The fabricated tetracene OTFTs have shown good output characteristics with mobility 0.93x10 cm/V.s, ON-OFF ratio 3.3x10, sub-threshold swing 0.06 V/d...

The performance of hot electron bolometer mixer devices made out of superconducting thin films critically depends on film quality. We discuss various deposition conditions for Nb films and present their properties for a wide thickness range. The obtained film parameters allow to predict the characteristics of our actual devices. We also shortly present a new fabrication process for Nb diffusion...

We describe the preparation and electro-optic characteristics of a color display which makes use of the selective reflection of cholesteric droplets embedded in a polymer film. The polymer film is formed by a UV-curable adhesive, as opposed to the thermoplastic polymers which have been used previously. The new systems are easy to prepare and suitable for operation at room temperature. They show...

Fixed film biological wastewater treatment processes, such as trickling filters, biological fluidized beds, and rotating biological contactors (RBC), have gained more attention recently due to their less energy consumption, ease of operation and low maintenance requirements. However, the dynamic nature of biofilms and their kinetic characteristics have not been fully understood. Designs of the ...