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
Article
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.
| Item Type: | Article |
|---|---|
| Erschienen: | 2014 |
| Creators: | Pareja, Jhon ; Litterscheid, Christian ; Kaiser, Bernhard ; Euler, Matthias ; Fuhrmann, Norman ; Albert, Barbara ; Molina, Alejandro ; Ziegler, Juergen ; Dreizler, Andreas |
| Type of entry: | Bibliographie |
| Title: | Surface thermometry in combustion diagnostics by sputtered thin films of thermographic phosphors |
| Language: | English |
| Date: | 1 October 2014 |
| Publisher: | Springer Berlin Heidelberg |
| Journal or Publication Title: | Applied Physics B-Lasers and Optics |
| Volume of the journal: | 117 |
| URL / URN: | http://link.springer.com/article/10.1007%2Fs00340-014-5803-4 |
| 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. |
| Identification Number: | doi:10.1007/s00340-014-5803-4 |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Surface Science Exzellenzinitiative Exzellenzinitiative > Clusters of Excellence 07 Department of Chemistry 07 Department of Chemistry > Fachgebiet Anorganische Chemie Zentrale Einrichtungen Exzellenzinitiative > Clusters of Excellence > Center of Smart Interfaces (CSI) |
| Date Deposited: | 17 Dec 2014 13:02 |
| Last Modified: | 04 Mar 2020 12:26 |
| PPN: | |
| Funders: | 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. |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Send an inquiry |
Options (only for editors)
 |
Show editorial Details |
Drucken
Impressum