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Photoluminescence: Applications01:14

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Fluorescent polymer coatings with tuneable sensitive range for remote temperature sensing.

Beatriz C Barja1, Carlos A Chesta, Teresa D Z Atvars

  • 1INQUIMAE and Dept. Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, C1428EHA Buenos Aires, Argentina.

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
|July 31, 2013
PubMed
Summary

Polymer films with fluorescent dyes act as remote temperature sensors. These coatings enable precise temperature readings across a 100K range, tunable via polymer-solute interactions for various applications.

Keywords:
FluorescencePolymer coatingsRemote sensingTemperature sensitive paintsTemperature sensor

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Area of Science:

  • Materials Science
  • Physical Chemistry
  • Spectroscopy

Background:

  • Fluorescent materials offer potential for non-contact thermometry.
  • Polymer films provide a versatile matrix for incorporating sensing elements.
  • Developing tunable temperature-sensitive coatings is crucial for advanced sensing applications.

Purpose of the Study:

  • To develop and characterize polymer films containing fluorescent dyes for remote temperature sensing.
  • To investigate the ratiometric measurement technique for accurate temperature determination.
  • To explore the tunability of the temperature sensitivity range through polymer-solute interactions.

Main Methods:

  • Fabrication of poly(vinyl alcohol) films doped with 4-aminophthalimide (AP) or Prodan.
  • Utilizing two-wavelength ratiometric-based emission intensity measurements for temperature quantification.
  • Characterizing the temperature sensitivity and operational range of the fluorescent coatings.

Main Results:

  • Polymer films with AP and Prodan exhibit temperature-sensitive fluorescence.
  • A 100K temperature sensitivity range was achieved for both dyes.
  • The usable temperature ranges were determined as 200-300 K for AP and 280-380 K for Prodan.
  • Temperature sensitivity is tunable via polymer-solute interactions.

Conclusions:

  • Poly(vinyl alcohol) films incorporating AP or Prodan serve as effective temperature-sensitive coatings for remote sensing.
  • The ratiometric fluorescence intensity measurement method allows for accurate temperature determination.
  • The developed coatings offer tunable temperature sensitivity, expanding their applicability in diverse thermal monitoring scenarios.