Articles producció científica> Química Física i Inorgànica

Improving Accuracy and Sensitivity of Lanthanide-Based Luminescent Manometers by Augmented Spectral Shift Method

  • Identification data

    Identifier: imarina:9294606
    Handle: https://hdl.handle.net/20.500.11797/imarina9294606
    Authors:
    Pieprz, M.Runowski, M.Ledwa, K.Carvajal, JJ.Bednarkiewicz, A.Marciniak, L.
    Abstract:
    Luminescence manometry is most often realized by a spectral shift of luminescence bands. Typically, the shift of spectrally narrow-band emission is quantified, which is highly precise but not very sensitive to pressure variations. Alternatively, the spectral shift of a broadband emission may be exploited, which is more sensitive but less precise, due to the difficulty in accurate determination of the band centroid. In this work, a mixed approach is presented, combining the shift in broadband chromium emission from the 4T2 → 4A2 level with a narrow-band neodymium emission (4F3/2 → 4I11/2 transition), observed in the La3Ga5GeO14 spectrum. The resulting optical Nd3+-based manometer demonstrates an absolute sensitivity of 2.92 cm-1/GPa for the 4F3/2 → 4I11/2 electronic transition. An additional advantage of using this material is its negligible spectral shift with temperature, determined in the T range of 77-343 K, making the pressure readouts independent of this parameter (i.e., temperature variations).

  • Others:

    Author, as appears in the article.: Pieprz, M.; Runowski, M.; Ledwa, K.; Carvajal, JJ.; Bednarkiewicz, A.; Marciniak, L.
    Department: Química Física i Inorgànica
    URV's Author/s: Carvajal Martí, Joan Josep
    Keywords: Pressure sensor Manometry Luminescent manometer Luminescence intensity ratio Crystal field strength Cr 3+
    Abstract: Luminescence manometry is most often realized by a spectral shift of luminescence bands. Typically, the shift of spectrally narrow-band emission is quantified, which is highly precise but not very sensitive to pressure variations. Alternatively, the spectral shift of a broadband emission may be exploited, which is more sensitive but less precise, due to the difficulty in accurate determination of the band centroid. In this work, a mixed approach is presented, combining the shift in broadband chromium emission from the 4T2 → 4A2 level with a narrow-band neodymium emission (4F3/2 → 4I11/2 transition), observed in the La3Ga5GeO14 spectrum. The resulting optical Nd3+-based manometer demonstrates an absolute sensitivity of 2.92 cm-1/GPa for the 4F3/2 → 4I11/2 electronic transition. An additional advantage of using this material is its negligible spectral shift with temperature, determined in the T range of 77-343 K, making the pressure readouts independent of this parameter (i.e., temperature variations).
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: joanjosep.carvajal@urv.cat
    Author identifier: 0000-0002-4389-7298
    Record's date: 2024-09-07
    Papper version: info:eu-repo/semantics/publishedVersion
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Acs Applied Optical Materials. 1 (6): 1080-1087
    APA: Pieprz, M.; Runowski, M.; Ledwa, K.; Carvajal, JJ.; Bednarkiewicz, A.; Marciniak, L. (2023). Improving Accuracy and Sensitivity of Lanthanide-Based Luminescent Manometers by Augmented Spectral Shift Method. Acs Applied Optical Materials, 1(6), 1080-1087. DOI: 10.1021/acsaom.2c00198
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2023
    Publication Type: Journal Publications

  • Keywords:

    Pressure sensor
    Manometry
    Luminescent manometer
    Luminescence intensity ratio
    Crystal field strength
    Cr 3+

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