Oxygen ion-beam modification of vanadium oxide films for reaching a high value of the resistance temperature coefficient
Journal Title: Semiconductor Physics, Quantum Electronics and Optoelectronics - Year 2017, Vol 20, Issue 2
Abstract
A new method to prepare vanadium oxide with a high temperature coefficient of resistance (TCR) and low resistance for uncooled micro-bolometers has been proposed. Amorphous vanadium oxide films with V2O3 phase inclusions have been fabricated on silicon and silica substrates at the temperature 200 °C by using the direct current reactive magnetron sputtering method in controlled Ar/O2 atmosphere. Additional oxygen ion implantation in the deposited films allows to synthesize vanadium oxide with crystalline inclusions of VO2 and V2O5 phases under the low temperature annealing. The following long low-temperature annealing provides formation of VOx (at x 2) film with the TCR close to 7.0%/°C.
Authors and Affiliations
T. M. Sabov, O. S. Oberemok, O. V. Dubikovskyi, V. P. Melnik, B. M. Romanyuk, V. G. Popov, O. Yo. Gudymenko, N. V. Safriuk
In–HgCdTe–In structures with symmetric nonlinear I–V characteristics for sub-THz direct detection
This paper reports on the development and investigations of In–Hg1–xCdxTe–In structures with symmetric nonlinear I–V curves that are sensitive to sub-terahertz radiation. It is shown that at low currents photoresponse of...
Peculiarities of near-electrode relaxation processes in the polyethylene melt filled with graphite and carbon black
By using the oscilloscope method within the frequency range 10 to 106 Hz at the temperature 492.1 K and pressure 11.31 MPa at the output of the single-screw extruder, the dielectric properties of the composite melt – lin...
The influence of physical and technological magnetron sputtering modes on the structure and optical properties of CdS and CdTe films
To create technology for preparation of CdS and CdTe thin films by direct current magnetron sputtering, the influence of physical and technological condensation modes on the crystal structure and optical properties of th...
1/f noise and carrier transport mechanisms in InSb p + -n junctions
The dark current and 1/f noise spectra have been investigated in p + -n InSb junctions. The photodiodes were prepared by Cd diffusion into single crystal substrates. The current-voltage characteristics have been explaine...
Be-ion implanted p-n InSb diode for infrared applications. Modeling, fabrication and characterization
Transport theory for modeling the electric characteristics of high-quality p-n diodes has been developed. This theory takes into account a non-uniform profile of p- doping, finite thickness of the quasi-neutral regions a...