Polymer Sensitive Elements for Gas Sensors of Ammonia

  • B.R. Tsizh Kazimierz Wielki University in Bydgoszcz, Chodkiewicza, 30, Bydgoszcz, 85-064
  • O.I. Aksimentyeva Ivan Franko Lviv National University, Kyryla-Mefodia Str., 6, Lviv, 79005
  • M.I. Chokhan Stepan Gzytsky Lviv Natoinal University of Veterinary Medicine and Biotechnologies, Pekarska Str., 50, Lviv, 79010
Keywords: gas sensor, polyaniline, poly-3, 4-ethylenedioxythiophene, ammonia, optical absorption, sensitive element, thin film


The influence of ammonia on the optical absorption spectra of thin films of polyaniline (PANI), poly-3,4-ethylenedioxythiophene (PEDOT), mixtures thereof, and the bilayer film structures based on PANI and PEDOT obtained by electrochemical method were studied. The kinetics of changes in the optical absorption of these structures under the action of ammonia was explored in the spectral range of 350 ... 900 nm. We proved that the thin-film structure of PANI / PEDOT significantly extends the spectral range of sensitivity to ammonia of individual PANI n PEDOT films by superposition of high gas sensitivity of PANI and PEDOT films in the range of wavelength of 500 ... 700 nm and 350... 550 nm respectively. It was shown that the area under the spectra of change of the optical absorption of thin-film structure of PANI / PEDOT is in 1.45 times larger than the area of the same for individual components of the layers, which is the key to increasing the sensitivity of the gas sensors. The results can be used to optimize ammonia gas sensors for monitoring biotechnological processes in food industry and the environment.


Bai, H., Shi, G. (2007). Gas Sensors Based on Conducting Polymers, Sensors. 7, 267–307.

Tsizh, B.R., Aksimentyeva, O.I. (2016). Organic High-Sensitive Elements of Gas Sensors Based on Conducting Polymer Films, Molec. Cryst. Liq. Cryst. 639, 33–38.

Tsizh, B.R., Chokhan, M.I., Olkhova, M.R. (2016). Recovery Processes of Optical Properties of Polymer Sensor Films, Molec. Cryst. Liq. Cryst. 639, 19–23.

Olenych, I.B., Tsizh, B.R., Aksimentyeva, O.I., Horbenko, Y.Y. (2016). Organic-Inorganic Nanocomposites for Gas Sensing, IEEE Xplore Digital Library. DOI: 10.1109/UkrMiCo. 2016. 7739609.

Olenych, B., Tsіzh, B.R., Aksimentyeva, O.I., Horbenko, Yu.Yu. (2016). Gas Sensitive Elements Based on Organic-Inorganic Nanocomposites, Information and Telecommunication Sciences. 2, 28–34.

Tsizh, B.R., Aksimentyeva, O.I., Vertsimakha, YA.I., Lutsyk, P.M., Chokhan, M.I. (2014). Effect of Ammonia on Optical Absorption of Polyaniline Films, Mol. Cryst. Liq.Cryst. 529, 116–123.

Kukla, A.L., Pavluchenko, A.S., Kotljar, V.A. at all (2005). Sens. Electron. and Microsyst. Technol. 2, 42.

Tsizh, B.R., Chokhan, M.I., Aksimentyeva, O.I., Konopelnyk, O.I. (2009). Sensors to Control of the Quality of Animal Food Based on Organic Semiconductors, Mol. Cryst .Liq. Cryst. 497, 254.

Ameer, Q., Adeloju, S.B. (2005). Polypyrrole-based electronic noses for environmental and industrialanalysis, Sensors Actuators B. 106, 541–552.

Xu, K., Zhu, L.H., Li, J., Tang H.Q. (2006). Effects of dopants on percolation behaviors and gas sensing characteristics of polyaniline film, Electrochim Acta. 52, 723–727.

Reemts, J., Parisi, J., Schlettwein, D. (2004). Electrochemical growth of gas-sensitive polyaniline thin films across an insulating gap. Thin Solid Films. 466, 320–325.

McGovern, S.T., Spinks, G.M., Wallace, G.G. (2005). Micro-humidity sensors based on a processable polyaniline blend, Sens. Actuators B. 107, 657–665.

Sandberg, H.G.O., Backlund, T.G., Osterbacka, R. at all. (2005). Applications of an all-polymer solution-processed high-performance, transistor. Synth. Met. 155, 662–665.

Ram, M.K., Yavuz, O., Lahsangah, V., Aldissi, M. (2005). CO gas sensing from ultrathin nano-composite conducting polymer film, Sens. Actuators B. 106, 750–757.

Nohria, R., Khillan, R.K., Su, Y., Dikshit, R., Lvov, Y., Varahramyan, K. (2006). Humidity sensor based on ultrathin polyaniline film deposited using layer-by-layer nano-assembly. Sens. Actuators B. 114, 218–222.

Athawale, A.A., Bhagwat, S.V., Katre,P.P. (2006). Nanocomposite of Pd-polyaniline as a selective methanol sensor, Sens. Actuators B. 114, 263–267.

Abstract views: 0
PDF Downloads: 0
How to Cite
Tsizh, B., Aksimentyeva, O., & Chokhan, M. (2017). Polymer Sensitive Elements for Gas Sensors of Ammonia. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Food Technologies, 19(75), 3-7. https://doi.org/10.15421/nvlvet7501