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A Dual Luminescent Sensor Material for Simultaneous Imaging of Pressure and Temperature on Surfaces

Stich, Matthias I. J und Nagl, Stefan und Wolfbeis, Otto S. und Henne, Ulrich und Schäferling, Michael (2007) A Dual Luminescent Sensor Material for Simultaneous Imaging of Pressure and Temperature on Surfaces. Advanced Functional Materials, Vol. 18 (9), Seiten 1399-1406. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. DOI: 10.1002/adfm.200701199. ISSN 1616-301X.

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Offizielle URL: http://www.afm-journal.de

Kurzfassung

A novel kind of composite material for simultaneous luminescent determination of air pressure and temperature is presented. The dual sensor consists of a fluorinated platinum porphyrin complex (PtTFPP) as an oxygen-sensitive probe, and of the highly temperature-sensitive europium complex Eu(tta)3(dpbt) as temperature probe. Both are incorporated into different polymer microparticles to control response characteristics and to avoid interferences. Encapsulation of PtTFPP in poly(styrene-co-acrylonitrile) (PSAN) results in a broad dynamic range from 0.05 to 2.00 bar for pressure measurements. The europium complex was incorporated into poly(vinyl chloride) to reduce the cross sensitivity towards oxygen. This system represents a new class of luminescent sensor system, where the signals are separated via the different luminescence lifetimes of the indicators. It is possible to monitor the emission of the temperature-sensitive probe by means of time-resolved fluorescence imaging without interferences, because the luminescence lifetime of the temperature indicator is tenfold longer than that of the oxygen indicator. The temperature image can then be used to compensate cross sensitivity of the pressure indicator towards temperature. In combination with an appropriate time-resolved measurement technique, this material enables simultaneous imaging of pressure (or oxygen partial pressure) and temperature distributions on surfaces. It is distinguished from other approaches of dual pressure and temperature sensitive paints because it avoids the need of signal separation by application of different cameras or by use of different optical filters or light sources.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:Published Online: 29 Apr 2008
Titel:A Dual Luminescent Sensor Material for Simultaneous Imaging of Pressure and Temperature on Surfaces
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Stich, Matthias I. JUniversity of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)
Nagl, StefanUniversity of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)
Wolfbeis, Otto S.University of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)
Henne, UlrichNICHT SPEZIFIZIERT
Schäferling, MichaelUniversity of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)
Datum:2007
Erschienen in:Advanced Functional Materials
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:Vol. 18
DOI :10.1002/adfm.200701199
Seitenbereich:Seiten 1399-1406
Verlag:WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Name der Reihe:AFMDC6
ISSN:1616-301X
Status:veröffentlicht
Stichwörter:europium • imaging • luminescence • porphyrin • platinum • rare-earth complexes • sensors
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Flugphysik
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren
Hinterlegt von: Ilka Micknaus
Hinterlegt am:05 Jun 2008
Letzte Änderung:15 Jan 2010 01:52

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