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  Probing Ionization Energies for Trace Gas Identification: The Micro Photo Electron Ionization Detector (PEID)

Doll, T., Oberröhrmann, J., Baum, S., Köhler, R., Schütte, H., Gassmann, S., et al. (2021). Probing Ionization Energies for Trace Gas Identification: The Micro Photo Electron Ionization Detector (PEID). In E. Massera (Ed.), CSAC2021: 1st International Electronic Conference on Chemical Sensors and Analytical Chemistry: session Gas Sensors. Basel: MDPI. doi:10.3390/CSAC2021-10431.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-E45A-2 Version Permalink: https://hdl.handle.net/21.11116/0000-000D-2A88-B
Genre: Conference Paper

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https://hdl.handle.net/21.11116/0000-0008-E45E-E
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Copyright Date:
2021
Copyright Info:
The Author(s)
License:
http://creativecommons.org/licenses/by/4.0/

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 Creators:
Doll, Theodor1, 2, 3, 4, Author
Oberröhrmann, Jonas3, Author
Baum, Stefan3, Author
Köhler, Robert5, Author
Schütte, Helmut6, Author
Gassmann, Stefan6, Author
Thies, Simon6, Author
Baum, Hans3, Author
Velasco-Velez, Juan7, Author           
Fuenzalida , Victor Manuel8, Author
Hassel, Achim Walter4, Author
Affiliations:
1Biomaterial Engineering, Hannover Medical School, ou_persistent22              
2Fraunhofer Institute of Toxicology and Experimental Medicine ITEM, Hannover, Germany, ou_persistent22              
3DBT GmbH, Würzburg, Germany, ou_persistent22              
4Johannes Kepler University, Inst. for Chemical Technology of Inorganic Materials, Linz, Austria, ou_persistent22              
5University of Applied Sciences, Göttingen, Germany, ou_persistent22              
6Jade University of Applied Sciences, Wilhelmshaven, Germany, ou_persistent22              
7Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
8Universidad de Chile, Departamento de Física, Laboratorio de Superficies, Santiago, Chile, ou_persistent22              

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 Abstract: Micro gas sensors detect the presence of substances, but can hardly identify them. We developed a novel approach of probing referenceable ionization energies. It extends the photoionization principle towards tunable energies via replacement of photons by accelerated photo electrons. The device comprises UV-LED illumination, an atmospherically stable photoelectron emission layer with a nano-vacuum electronics accelerator realized in thin film technology and charged particle measurement. A voltage variation at the accelerator provides electrons of tunable energies. We were able to prove that variable electron energies can be used for substance detection. The resulting system reaches ambient conditions operability. The actual limitations and challenges are discussed.

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Language(s): eng - English
 Dates: 2021-06-30
 Publication Status: Published online
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: URN: https://sciforum.net/manuscripts/10431/manuscript.pdf
DOI: 10.3390/CSAC2021-10431
 Degree: -

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Title: CSAC2021: 1st International Electronic Conference on Chemical Sensors and Analytical Chemistry
Place of Event: Online
Start-/End Date: 2021-07-01 - 2021-07-15

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Title: CSAC2021: 1st International Electronic Conference on Chemical Sensors and Analytical Chemistry: session Gas Sensors
Source Genre: Proceedings
 Creator(s):
Massera, Ettore, Editor
Affiliations:
-
Publ. Info: Basel : MDPI
Pages: 6 Volume / Issue: - Sequence Number: sciforum-046163 Start / End Page: - Identifier: -