FEATURES OF GAS-SENSIBILITY OF DYES ON THE BASE OF 4-VALENCE STANNUM COMPLEXES
Journal Title: Сенсорна електроніка і мікросистемні технології - Year 2017, Vol 14, Issue 1
Abstract
Aim: Regularity detecting of possible sensitivity of nanoparticles ensemble of dyes on the base of 4-valence stannum complexes to presence of ammonia or HCl vapour in environment. Research methods: Analysis of photoluminescence spectra of specimens with posterior summarizing of obtained experimental results and using the literary data and analogies with results of previous researching. Results of researching: It’s found, that the nanoparticles ensemble of dyes containing the benzoyl type amine substituent in the hydrazone fragment sharp and stably decreases its luminescence intensity about in half after placing into ammonia atmosphere. The initial luminescence intensity may be restored after annealing only. Probably this result is connected with formation of bridge bonds inside the pores of matrix by ammonia molecules. On the other hand, the nanoparticles ensemble of dyes containing the hydroxyl type amine substituent is sensitive to the HCl vapour. They reduce their luminescence intensity about three times due to redistribution of negative charge in system. However, specified changes have a place with some latent period. The initial luminescence intensity also may be restored after annealing in this case. Conclusion: There is certain selectivity of gas sensitivity of investigated dyes. The dyes containing amine substituent are sensitive to ammonia and insensitive to HCl vapour. The dyes containing hydroxyl substituent are sensitive to HCl vapour and insensitive to ammonia. So it’s promise to use as an indicated luminescence gas sensor both systems simultaneously. If it will need, every one snaps into action to appropriate gas.
Authors and Affiliations
I. K. Doycho, S. A. Gevelyuk, Ya. I. Lepikh, E. Rysiakiewicz-Pasek
Keywords
Related Articles
- EP ID EP398541
- DOI 10.18524/1815-7459.2017.1.96436
- Views 90
- Downloads 0
STRUCTURAL-PHASE TRANSFORMATIONS AND ELECTROPHYSICAL PROPERTIES OF THE COMPOSITE MATERIALS BASED ON "SiO2-B2O3-Bi2O3-ZnO-BaO" SYSTEM
The processes of the glass forming and crystallization and also physical and chemical properties of "SiO2 - B2O3 - Bi2O3 - ZnO - BaO" system with the different concentration ratios of the initial components and doping im...
NEW APPROACH AND MICROSYSTEM TECHNOLOGY OF ADVANCED ANALYSIS AND FORECASTING THE AIR POLLUTANT CONCENTRATION TEMPORAL DYNAMICS IN ATMOSPHERE OF THE INDUSTRIAL CITIES
We present the results of an advanced analysis, modeling and forecasting a temporal dynamics of the air pollutant (dioxide of nitrogen) concentrations in an atmosphere of the industrial city (Odessa, Ukraine; Gdansk, Pol...
DEVELOPMENT OF AMPEROMETRIC BIOSENSOR FOR GLUTAMATE DETERMINATION
In this work an amperometric biosensor for glutamate determination was developed. Bioselective element of the biosensor was based on enzyme glutamate oxidase, which was immobilized by a covalent cross-linking via glutara...
PHOTOELECTRICAL AND PIEZOOPTICAL PROPERTIES OF CU1-XZNX INS2 SOLID SOLUTIONS
The photoconductivity and IR-induced piezooptic effect of CuInS2 –ZnIn2 S4 solid solutions have been investigated. The results of studies of the photoconductivity spectra at T≈300 found that an increase in the concentrat...
MEASUREMENT OF TEMPERATURE DEPENDENCE OF FACTORS OF ABSORPTION EFFICIENCY OF PLATINUM BOLOMETER ON RADIATION WAVELENGTH 1.06 MICRON
The method of temperature dependence measurement of factor of absorption efficiency of thin-wire platinum bolometer for E- and H-polarized radiation is grounded and experimentally checked taking into account intense dist...