6533b823fe1ef96bd127f64c
RESEARCH PRODUCT
Optical Sensor for Real-Time Detection of Trichlorofluoromethane
Dimitrij RyvlinSiegfried R. WaldvogelMaiko GirschikofskyRalf Hellmannsubject
Materials scienceTrichlorofluoromethane02 engineering and technologylcsh:Chemical technology01 natural sciencesBiochemistryArticlesupramolecular chemistryAnalytical Chemistry010309 opticsRefrigerantchemistry.chemical_compoundPlanarFiber Bragg gratingsensor0103 physical sciencesOzone layerlcsh:TP1-1185Electrical and Electronic EngineeringInstrumentationPropellantbusiness.industry021001 nanoscience & nanotechnologyCyclodextrin DerivativesAtomic and Molecular Physics and OpticsChemical sensortrichloroflouromethanecyclodextrinchemistryBragg gratingOptoelectronics0210 nano-technologybusinessdescription
Trichlorofluoromethane was once a promising and versatile applicable chlorofluorocarbon. Unaware of its ozone-depleting character, for a long time it was globally applied as propellant and refrigerant and thus led to significant thinning of the ozone layer and contributed to the formation of the so-called ozone hole. Although production and application of this substance were gradually reduced at an early stage, we still face the consequences of its former careless use. Today, trichlorofluoromethane is released during recycling processes of waste cooling devices, traded on the black market, and according to recent findings still illegally manufactured. Here, we present an optical sensor device for real-time in-situ detection and measurement of this environmentally harmful chlorofluorocarbon. The described sensor is based on a planar Bragg grating that is functionalized with cyclodextrin derivatives and operates on the principle of a chemical sensor. In our study, the sensor is sensitized using per-methyl-, per-ethyl-, and per-allyl-substituted &alpha
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-02 | Sensors |