Highly sensitive active medium of sensor NO2 , based on cholesteric nematic mixture with impurities of carbon nanotubes

The paper presents the results of the study of the parameters of the highly sensitive active medium of the NO2 sensor based on a cholesterol-nematic mixture with an admixture of carbon nanotubes. The dependence of the change in the wavelength of the two transmission minima on the NO2 concentration f...

Full description

Saved in:

Bibliographic Details
Published in:	Fìzika ì hìmìâ tverdogo tìla (Online) Vol. 22; no. 3; pp. 426 - 431
Main Authors:	Z.M. Mykytyuk, M.V. Vistak, I.T. Kogut, V.S. Petryshak
Format:	Journal Article
Language:	English
Published:	Vasyl Stefanyk Precarpathian National University 28-09-2021
Subjects:	active medium carbon nanotubes cholesterol-nematic mixture no2 sensor
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	The paper presents the results of the study of the parameters of the highly sensitive active medium of the NO2 sensor based on a cholesterol-nematic mixture with an admixture of carbon nanotubes. The dependence of the change in the wavelength of the two transmission minima on the NO2 concentration for cholesterol-nematic mixture with single-walled, double-walled and multi-walled nanotubes at different concentrations of nanotubes and two concentrations of nematically liquid crystal 5CB were obtained. It is established that by changing the ratio between the concentrations of nanotubes and nematic liquid crystals, it is possible to obtain mixtures that have the maximum spectral sensitivity coefficient in a given range of gas concentration.
ISSN:	1729-4428 2309-8589
DOI:	10.15330/pcss.22.3.426-431