SPR enhanced ellipsometric gas monitoring on thin iron doped tin oxide layers
- In this work, thin iron doped tin oxide layers (3–6 nm) were investigated with regard to gas sensitivity by means of surface plasmon resonance (SPR) effect with ellipsometric readout. The experimental set-up was a Kretschmann configuration with gold as metal layer. The sensor system was exposed to different concentrations of methane in the low ppm range and the sensor response of an uncoated gold layer compared to a gold layer coated with iron doped tin oxide. The additional layer effects stability with regard to drift behavior of the sensor and an increase in sensitivity. Furthermore, the sensor is able to detect the toxic gas carbon monoxide in low concentration range (down to 0.5 ppm). The thin layers were investigated by X-ray photoelectron spectroscopy, secondary electron microscopy and spectroscopic ellipsometry. The possible mechanisms taking place on the surface are discussed.
Autor*innen: | Uwe Beck, Andreas HertwigORCiD, M. Kormunda, Andreas Krause, Hannes Krüger, Volkmar Lohse, Alida Nooke, J. Pavlik, J. Steinbach |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Sensors and actuators B: Chemical |
Jahr der Erstveröffentlichung: | 2011 |
Verlag: | Elsevier |
Verlagsort: | Amsterdam [u.a.] |
Jahrgang/Band: | 160 |
Ausgabe/Heft: | 1 |
Erste Seite: | 609 |
Letzte Seite: | 615 |
Freie Schlagwörter: | Ellipsometry; Gas sensing; Iron doped tin oxide; SPR effect |
DOI: | 10.1016/j.snb.2011.08.036 |
ISSN: | 0925-4005 |
ISSN: | 1873-3077 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 24.11.2011 |