Mn4+-Doped Magnesium Titanate—A Promising Phosphor for Self-Referenced Optical Temperature Sensing
Phosphors based on magnesium titanate activated with Mn 4 + ions are of great interest because, when excited with blue light, they display a strong red-emitting luminescence. They are characterized by a luminescence decay which is strongly temperature dependent in the range from −50 ∘...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-02-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/2/668 |
| _version_ | 1811302312820342784 |
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| author | Francesca Venturini Michael Baumgartner Sergey M. Borisov |
| author_facet | Francesca Venturini Michael Baumgartner Sergey M. Borisov |
| author_sort | Francesca Venturini |
| collection | DOAJ |
| description | Phosphors based on magnesium titanate activated with Mn 4 + ions are of great interest because, when excited with blue light, they display a strong red-emitting luminescence. They are characterized by a luminescence decay which is strongly temperature dependent in the range from −50 ∘ C to 150 ∘ C, making these materials very promising for temperature sensing in the biochemical field. In this work, the optical and thermal properties of the luminescence of Mg 2 TiO 4 are investigated for different Mn 4 + doping concentrations. The potential of this material for temperature sensing is demonstrated by fabricating a fiber optic temperature microsensor and by comparing its performance against a standard resistance thermometer. The response of the fiber optic sensor is exceptionally fast, with a response time below 1 s in the liquid phase and below 1.1 s in the gas phase. |
| first_indexed | 2024-04-13T07:25:49Z |
| format | Article |
| id | doaj.art-8b8df5e307f647ae83e155669b725119 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T07:25:49Z |
| publishDate | 2018-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-8b8df5e307f647ae83e155669b7251192022-12-22T02:56:29ZengMDPI AGSensors1424-82202018-02-0118266810.3390/s18020668s18020668Mn4+-Doped Magnesium Titanate—A Promising Phosphor for Self-Referenced Optical Temperature SensingFrancesca Venturini0Michael Baumgartner1Sergey M. Borisov2Institute of Applied Mathematics and Physics, Zurich University of Applied Sciences, Winterthur 8401, SwitzerlandInstitute of Applied Mathematics and Physics, Zurich University of Applied Sciences, Winterthur 8401, SwitzerlandInstitute of Analytical Chemistry and Food Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, AustriaPhosphors based on magnesium titanate activated with Mn 4 + ions are of great interest because, when excited with blue light, they display a strong red-emitting luminescence. They are characterized by a luminescence decay which is strongly temperature dependent in the range from −50 ∘ C to 150 ∘ C, making these materials very promising for temperature sensing in the biochemical field. In this work, the optical and thermal properties of the luminescence of Mg 2 TiO 4 are investigated for different Mn 4 + doping concentrations. The potential of this material for temperature sensing is demonstrated by fabricating a fiber optic temperature microsensor and by comparing its performance against a standard resistance thermometer. The response of the fiber optic sensor is exceptionally fast, with a response time below 1 s in the liquid phase and below 1.1 s in the gas phase.http://www.mdpi.com/1424-8220/18/2/668phosphoroptical sensortemperature sensormanganese, luminescence |
| spellingShingle | Francesca Venturini Michael Baumgartner Sergey M. Borisov Mn4+-Doped Magnesium Titanate—A Promising Phosphor for Self-Referenced Optical Temperature Sensing Sensors phosphor optical sensor temperature sensor manganese, luminescence |
| title | Mn4+-Doped Magnesium Titanate—A Promising Phosphor for Self-Referenced Optical Temperature Sensing |
| title_full | Mn4+-Doped Magnesium Titanate—A Promising Phosphor for Self-Referenced Optical Temperature Sensing |
| title_fullStr | Mn4+-Doped Magnesium Titanate—A Promising Phosphor for Self-Referenced Optical Temperature Sensing |
| title_full_unstemmed | Mn4+-Doped Magnesium Titanate—A Promising Phosphor for Self-Referenced Optical Temperature Sensing |
| title_short | Mn4+-Doped Magnesium Titanate—A Promising Phosphor for Self-Referenced Optical Temperature Sensing |
| title_sort | mn4 doped magnesium titanate a promising phosphor for self referenced optical temperature sensing |
| topic | phosphor optical sensor temperature sensor manganese, luminescence |
| url | http://www.mdpi.com/1424-8220/18/2/668 |
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