Sensor and apparatus for CO2 detector with organo-siloxane supramolecular polymers sensitive layer

The sensor was made by thin film technology. An alumina substrate 5x5x0,6 mm was used on the substrate was deposed by magnetron sputtering two plates Au electrodes. The sensitive layer the organo-siloxane supramolecular polymers was dissolved in chloroform and was deposed by spin coating on the substrate over electrode in the 200 nm thickness. The sensor was tested in 100 and 1000 ppm concentration CO2 and the voltage values obtained are 92 mV and 970 mV for 100 ppm and 1000 ppm CO2. The apparatus for CO2 detection is composed by the sensor and electronic device of signal conditioning.