Kremer I. Sensors for control of environment parameters on base of conductive polymers

Dissertation work is devoted to development of new sensors for control of environmental parameters with the application of a polyaniline film as a sensing element of device. In this work fiber-optical sensors for pH and ammonia concentration are created. They work on the basis of light dispersion in polyaniline - quartz fiber heterojunction and are compatible with modern measuring devices for analyzing of operational characteristics of fiber-optical communication lines. On the basis of the developed process of vacuum deposition of polymer films on optically transparent semiconductors critical temperature conditions have been discovered for obtaining sensitive to environment polymer layers. It is shown that one of the main factors which influence on sensitivity of the proposed sensor is the method of sensitive polymer layer deposition; namely, the sensitivity of the sensor is 1.5 times higher using thermal-vacuum deposition, than chemical polymerization.