Pareja, Jhon ; Litterscheid, Christian ; Kaiser, Bernhard ; Euler, Matthias ; Fuhrmann, Norman ; Albert, Barbara ; Molina, Alejandro ; Ziegler, Juergen ; Dreizler, Andreas (2014)
Surface thermometry in combustion diagnostics by sputtered thin films of thermographic phosphors.
In: Applied Physics B-Lasers and Optics, 117
doi: 10.1007/s00340-014-5803-4
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The accuracy and robustness of the thermographic phosphors (TP) technique relies in the use of coatings with low thickness, high-intensity luminescent emission and high adhesion to the surfaces. Sputter deposition has been evaluated as an alternative for coating preparation of TPs for surface thermometry in combustion diagnostics. Thin films of Gd3Ga5O12:Cr3+ have been deposited on fused silica and stainless steel substrates by radio frequency magnetron sputtering. Physical, chemical, and temperature-dependent luminescence properties of the phosphor films have been evaluated using X-ray diffraction, X-ray photoelectron spectroscopy and laser-induced luminescence, respectively. The results showed that the luminescence features of the thin films must be activated by heat treatment after sputter deposition. The Gd3Ga5O12:Cr3+ films exhibited appropriate temperature sensitivity with adequate precision of the temperature determination, proving to be suitable for pointwise (0D) surface thermometry. An evaluation of the spatial homogeneity of the luminescence properties, which has not been yet addressed in the literature for thin films of TPs, revealed that thin Gd3Ga5O12:Cr3+ films deposited on fused silica can be used for spatially resolved surface thermometry while those deposited on stainless steel require improvements to overcome spatial inhomogeneities of the luminescence lifetimes.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2014 |
| Autor(en): | Pareja, Jhon ; Litterscheid, Christian ; Kaiser, Bernhard ; Euler, Matthias ; Fuhrmann, Norman ; Albert, Barbara ; Molina, Alejandro ; Ziegler, Juergen ; Dreizler, Andreas |
| Art des Eintrags: | Bibliographie |
| Titel: | Surface thermometry in combustion diagnostics by sputtered thin films of thermographic phosphors |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Oktober 2014 |
| Verlag: | Springer Berlin Heidelberg |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics B-Lasers and Optics |
| Jahrgang/Volume einer Zeitschrift: | 117 |
| DOI: | 10.1007/s00340-014-5803-4 |
| URL / URN: | http://link.springer.com/article/10.1007%2Fs00340-014-5803-4 |
| Kurzbeschreibung (Abstract): | The accuracy and robustness of the thermographic phosphors (TP) technique relies in the use of coatings with low thickness, high-intensity luminescent emission and high adhesion to the surfaces. Sputter deposition has been evaluated as an alternative for coating preparation of TPs for surface thermometry in combustion diagnostics. Thin films of Gd3Ga5O12:Cr3+ have been deposited on fused silica and stainless steel substrates by radio frequency magnetron sputtering. Physical, chemical, and temperature-dependent luminescence properties of the phosphor films have been evaluated using X-ray diffraction, X-ray photoelectron spectroscopy and laser-induced luminescence, respectively. The results showed that the luminescence features of the thin films must be activated by heat treatment after sputter deposition. The Gd3Ga5O12:Cr3+ films exhibited appropriate temperature sensitivity with adequate precision of the temperature determination, proving to be suitable for pointwise (0D) surface thermometry. An evaluation of the spatial homogeneity of the luminescence properties, which has not been yet addressed in the literature for thin films of TPs, revealed that thin Gd3Ga5O12:Cr3+ films deposited on fused silica can be used for spatially resolved surface thermometry while those deposited on stainless steel require improvements to overcome spatial inhomogeneities of the luminescence lifetimes. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung Exzellenzinitiative Exzellenzinitiative > Exzellenzcluster 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie Zentrale Einrichtungen Exzellenzinitiative > Exzellenzcluster > Center of Smart Interfaces (CSI) |
| Hinterlegungsdatum: | 17 Dez 2014 13:02 |
| Letzte Änderung: | 04 Mär 2020 12:26 |
| PPN: | |
| Sponsoren: | The authors kindly acknowledge financial support by the Deutsche Forschungsgemeinschaft DFG (DR 374/9-1 and AL 536/10-1), the Cluster of Excellence EXC 259 Center of Smart Interfaces and the Excellence Initiative, , Darmstadt Graduate School of Excellence Energy Science and Engineering (GSC 1070). , Mr. Pareja gratefully acknowledges Universidad Nacional de Colombia-Sede Medellín (Programa Beca Estudiante Sobresaliente de Posgrado 2011–2012), Alcaldía de Medellín (Programa Enlaza Mundos 2012),, and the Institute Reaktive Strömungen und Messtechnik for their financial support of his research stay at TU Darmstadt. |
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