Optical acetone vapor sensors based on chiral nematic liquid crystals and reactive chiral dopants
Author(s)
Cachelin, P
Green, JP
Peijs, T
Heeney, M
Bastiaansen, CWM
Type
Journal Article
Abstract
Accurate monitoring of exposure to organic vapors, such as acetone, is an important part of maintaining a safe working environment and adhering to long- and short-term exposure limits. Here, a novel acetone vapor detection system is described based on the use of a reactive chiral dopant in a nematic liquid crystal thin film, which can accurately monitor the total exposure over a given time frame through changes in the reflection band of the film. It is found that films exposed to 1000 parts per million by volume (ppmv) of acetone vapor for 2 h exhibit a shift in reflection band of 12 nm, with smaller shifts observed at lower concentrations of acetone. Such sensors have potential applications in industrial hygiene.
Date Issued
2016-01-05
Date Acceptance
2015-12-08
Citation
Advanced Optical Materials, 2016, 4 (4), pp.592-596
ISSN
2195-1071
Publisher
Wiley
Start Page
592
End Page
596
Journal / Book Title
Advanced Optical Materials
Volume
4
Issue
4
Copyright Statement
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the accepted version of the following article: Cachelin, P. et al., (2016), Optical Acetone Vapor Sensors Based on Chiral Nematic Liquid Crystals and Reactive Chiral Dopants. Advanced Optical Materials., which has been published in final form at https://dx.doi.org/10.1002/adom.201500549
Publication Status
Published