(994 12) 5393209

Mirza Abdul oglu Kurbanov
Doctor of Physical and Mathematical Sciences, Professor

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1. Development of physical-chemical bases of creation of active composite , including hybrid and nanocomposits;

2. Study of mechanisms of the electret, piro-, piezo-, photoelectric, photovoltaic, electro- and thermo luminescent, piezoresistive, varistor, posistor effects in composites on the basis of various polymers, ferroelectrics and semiconductors;

3. Development of physical base of creation of multifunction converters on the bases of above named composites;

4. Research of physics of discharge plasma between dielectrics and use of the gas category in the technological purposes;

5. Influence of plasma of the gas category on physical-mathematical and electric properties of polymer dielectrics under various conditions, including cryogenic temperatures.

A complex research of mathematical, electro-thermo luminescent, thermal properties, boundary polarization, electron-ion and relaxation processes, interface phenomena and a charge state of composites in carried out in the laboratory. A possible mechanism of formation of the piro-, piezoelectric, electret. posistor, varistor, piezoresistive, photoelectric, photovoltaic effects in disorder systems of -piezoelectric and polymer-semiconductor is offered.
By research of pyroelectric properties of composites  on the bases of polymer-piezoceramics it is established that the reason of formation of the

pyroelectric effect is high reorientation polarization in a piezo-phase under action of an electric field of the injected charges on the phase boundary. It is found that piezoceramics having a domain-orientation polarization which is distinct from 180° and a rhombo hedral structure are effective components for pyroelectric composites.
By research of electret properties of composites it is established that the reason of occurrence of the electret effect in composites structure of a polymer and formation of a quasineutral system of type the injected electron and oriented on a direction of a field the domain in a particle as a result of polarization. The mechanism of change of an efficient electret charge and electret of a potential difference from temperature and an electric intensity in the polymer- piezoelectric composites is offered. It is found that for electret properties composites obtained on the base of the rhombo hedral piezoceramics are effective than composites on the base of the tetragonal piezoceramics. The model of electret composites and on the base of this model the mechanism of occurrence of electret properties in no polar polymers after dispersion their by piezoelectric particles are offered.
Researches showed that a dispersion of no polar (polyolefin) and polar (fluor carbon) polymers by semiconductor and piezoelectric particles leads to formation in the composites on the basis of their of the varistor and posistor effects due to formation of a potential barrier on the phase boundary and the change of its under action of temperature and an electric field.
It is established that a structure (a polarity, super molecular structure), a dielectric constant and an increase of a volume at the melting point of a polymer matrix substantially influence on the varistor and posistor properties of polymer-semiconductor composites due to an immediate dependence on their the value of potential barrier on the polymer-semiconductor phase boundary.
The technology and methods of obtaining of high effective composition posistor and resistor materials in the polymer-semiconductor system are developed.
On the composition polymer elements are developed electro acoustic converters, hydro acoustic send-receive aerials, devices of acoustic electronics, opto-acoustic transducers, gauges of tones of Korotkov, vibration pick-ups, seysmo-pick-ups, gauges of static and dynamic pressures, many of which have found serial application at factories and the enterprises of the various Ministries.