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Registration Number

0220U103692, 0118U003496 , R & D reports

Title

Development of organo-inorganic thin film reversing structures for multifunctional gas sensors.

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Head

Tsizh Bohdan R,

Registration Date

05-11-2020

Organization

Stepan Gzhytskyi National University of Veterinary Medicine and Biotechnologies Lviv

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 The technology of manufacturing experimental samples of thin-film sensor structures based on conjugated polymers with the inclusion of nanocomponents has been optimized to enhance the sensory properties. Physical and technical approaches to the production and improvement of optical gas sensors based on them are formulated. The causes and nature of changes in the optical and electrical properties of the created structures under the action of different gases are investigated. In particular, it was found that the sensitivity to ammonia of thin films of polyaniline increases almost twice by measuring optical absorption simultaneously in the visible and near infrared spectra and summing the absolute values of their changes, and it is also shown that isobestic stimulation points are stimulated in the vicinity of wavelengths of 375, 450 and 710 nm may be the reference points for the ammonia in the gas sensors, which ensures their selectivity. A prototype signal transducer for multifunctional gas sensors was developed and manufactured based on opto-pairs with three LEDs integrated in a single optical housing - red, green and blue and a common photodiode. The technique of express analysis of spectral sensitivity of optoelectronic sensors on three-channel signal converters is proposed.

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Aksimentyeva Olena I
Varyvoda Uriy Yu.
Horbenko Julia Yu.
Dzerin Mariana R
Kolych Igor I
Olenich Igor B
Fedorchuk Anatoliy O.
Tsizh Bohdan R
Tsizh Maxim B
Chohan Maria I

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2020-11-05