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A study of a QCM sensor based on pentacene for the detection of BTX vapors in air
- Source :
- Sensors and actuators. B, Chemical, 240 (2017): 1160–1164. doi:10.1016/j.snb.2016.09.097, info:cnr-pdr/source/autori:Bearzotti A.; Macagnano A.; Papa P.; Venditti I.; Zampetti E./titolo:A study of a QCM sensor based on pentacene for the detection of BTX vapors in air/doi:10.1016%2Fj.snb.2016.09.097/rivista:Sensors and actuators. B, Chemical (Print)/anno:2017/pagina_da:1160/pagina_a:1164/intervallo_pagine:1160–1164/volume:240
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- In this work we report the results concerning the integration of a thin layer of an organic polymer (pentacene) on a quartz crystal microbalance (QCM) used for pollutant detection at room temperature. Volatile organic compounds (VOC) are one of the major air pollutants. They are directly involved in the photochemistry of the ozone layer and can affect human health. Exposure to VOC may happen in indoor or outdoor environments, both for short or longer period of time in domestic or working conditions. Among VOCs, mono aromatic compounds such as benzene, toluene or xylenes (often referred as BTX) have carcinogenic, narcotic and neurotoxic properties. Thin films of pentacene were obtained by thermal physical vapor deposition both on transducers and silicon substrates. Structural and morphological characterizations by FTIR and AFM analysis confirm analogy between layered material before and after BTX exposition. QCM was chosen as a transducer due to the kind of interactions involved between material and the target gases. The device was exposed to BTX both in dry and wet conditions. The measurements results where compared also with those collected during the exposure toward humidity and ethanol. A clear discrimination between the different analytes was found.
- Subjects :
- Materials Chemistry2506 Metals and Alloys
Materials science
Silicon
QCM transducer
Pentacene
Xylene
Analytical chemistry
chemistry.chemical_element
02 engineering and technology
Gas sensors
010402 general chemistry
complex mixtures
01 natural sciences
Coatings and Films
chemistry.chemical_compound
Electronic
Materials Chemistry
Optical and Magnetic Materials
Electrical and Electronic Engineering
Thin film
Benzene
Instrumentation
Air quality control
BTX
Polymeric thin film
Toluene
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Surfaces, Coatings and Films
2506
Metals and Alloys
Quartz crystal microbalance
021001 nanoscience & nanotechnology
0104 chemical sciences
Surfaces
chemistry
Chemical engineering
Physical vapor deposition
Gas sensor
0210 nano-technology
Subjects
Details
- ISSN :
- 09254005
- Volume :
- 240
- Database :
- OpenAIRE
- Journal :
- Sensors and Actuators B: Chemical
- Accession number :
- edsair.doi.dedup.....dfddd924343d5a64a2a4c5356e83e9e4
- Full Text :
- https://doi.org/10.1016/j.snb.2016.09.097