FREQUENCY DEPENDENT ELECTRICAL PROPERTIES OF TIO2/COO CORESHELL THIN FILMS
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 0, Vol 5, Issue 2
Abstract
The frequency dependent electrical properties, [dielectrics] of TiO2/CoO core-shell thin films have been studied within the ultraviolet, visible and infrared regions of the electromagnetic radiations. Orthorhombic nanocrystallites have been induced by thermal annealing for the films as confirmed by XRD analysis. The optical absorption and transmission of these thin films were studied in the wavelength range from 200-1200nm using Perkin-Elmer Lambda- 2 spectrometer. The electrical properties of the films were also studied using the four points probe. However, our interest in this paper is in the dielectric properties only. TiO2/CoO core-shell thin films are semiconducting films with high dielectric loss. The films are good materials for storage cells in dynamic random access memory and can also be used as infrared detectors. At lower frequencies [or lower photon energy values] the dielectrics of the films are not strongly dependent on the annealing temperatures. At higher frequencies,[or higher photon energy values], the dielectric loss of the film samples annealed at higher temperatures decreased faster than the dielectric loss of the film samples annealed at lower temperatures.
Authors and Affiliations
Onah, Daniel U
Keywords
Related Articles
- EP ID EP143633
- DOI -
- Views 58
- Downloads 0
Analysis of Factors Influencing Productivity: Survey of Construction Projects in Central Gujarat Region of India
- Productivity in construction projects is usually an economic measure which acts as a game changer. Productivity can be an influential factor in minimizing the project losses or increased profits. A loss of billi...
PERFORMANCE EVALUATION OF A BURMIL FOR PROCESSING OF MAIZE GRITS
This paper examines the performance of a burmil using dry and wet maize at variable moisture contents and operating speeds. The moisture contents of the dry maize were 10%, 12%, 14% and 16%. For wet experiment, th...
INCREDIBLE INNOVATION IN VISIBLE LIGHT COMMUNICATION - LIGHT FIDELITY (LI - FI)
ight Fidelity (Li - Fi), high speed communication and networking variant of Visible Light Communication (VLC , aims to utilize a vast amount of unused electromagnetic spectrum in the visible light region. It provid...
Communication among Neural Networks
Artificial Neural networks are being used for forecasting and producing good and satisfactory results. The properties of artificial neural network like adaptability and arbitrary function mapping ability makes it...
RLE Compander for Wireless Sensor Data Processing
RLE data compression is effective when the measured signals are expected to be slow and repeatable. The task of this unit is crucial to the system power performance. RLE is a conceptually simple form of compressio...