Luminescence temperature sensing using poly(vinyl alcohol)-encapsulated ru(bpy)(3)(2+) films

A. Mills, Cheryl Tommons, R.T. Bailey, M.Catriona Tedford, Peter J. Crilly

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The ruthenium(II) diimine complexes, such as ruthenium(II) tris(bipyridyl), Ru(bpy)32+, possess highly luminescent excited states that are not only readily quenched by oxygen but also by an increase in temperature. The former effect can be rendered insignificant by encapsulating the complex in an oxygen impermeable polymer, although encapsulation often leads also to a loss of temperature sensitivity. The luminescence properties of Ru(bpy)32+ encapsulated in PVA were studied as a function of oxygen concentration and temperature and found to be independent of the former, but still very sensitive towards the latter. The results were fitted to an established Arrhenius-type equation, based on thermal quenching of the emitting state by a slightly higher (E= 3100 cm-1)3d-d state that deactivates very rapidly (10-13 s)via a non-radiative process.
LanguageEnglish
Pages495-500
Number of pages5
JournalAnalyst
Volume131
Issue number4
DOIs
Publication statusPublished - 2006

Fingerprint

2,2'-Dipyridyl
luminescence
Luminescence
alcohol
ruthenium
Alcohols
Ruthenium
Oxygen
oxygen
Temperature
encapsulation
temperature
Encapsulation
Excited states
Quenching
Polymers
polymer
Hot Temperature

Keywords

  • complexes
  • sensor
  • ruthenium(II)
  • luminophore
  • dependence
  • oxygen

Cite this

Mills, A., Tommons, C., Bailey, R. T., Tedford, M. C., & Crilly, P. J. (2006). Luminescence temperature sensing using poly(vinyl alcohol)-encapsulated ru(bpy)(3)(2+) films. Analyst, 131(4), 495-500. https://doi.org/10.1039/b516366h
Mills, A. ; Tommons, Cheryl ; Bailey, R.T. ; Tedford, M.Catriona ; Crilly, Peter J. / Luminescence temperature sensing using poly(vinyl alcohol)-encapsulated ru(bpy)(3)(2+) films. In: Analyst. 2006 ; Vol. 131, No. 4. pp. 495-500.
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Mills, A, Tommons, C, Bailey, RT, Tedford, MC & Crilly, PJ 2006, 'Luminescence temperature sensing using poly(vinyl alcohol)-encapsulated ru(bpy)(3)(2+) films' Analyst, vol. 131, no. 4, pp. 495-500. https://doi.org/10.1039/b516366h

Luminescence temperature sensing using poly(vinyl alcohol)-encapsulated ru(bpy)(3)(2+) films. / Mills, A.; Tommons, Cheryl; Bailey, R.T.; Tedford, M.Catriona; Crilly, Peter J.

In: Analyst, Vol. 131, No. 4, 2006, p. 495-500.

Research output: Contribution to journalArticle

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T1 - Luminescence temperature sensing using poly(vinyl alcohol)-encapsulated ru(bpy)(3)(2+) films

AU - Mills, A.

AU - Tommons, Cheryl

AU - Bailey, R.T.

AU - Tedford, M.Catriona

AU - Crilly, Peter J.

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N2 - The ruthenium(II) diimine complexes, such as ruthenium(II) tris(bipyridyl), Ru(bpy)32+, possess highly luminescent excited states that are not only readily quenched by oxygen but also by an increase in temperature. The former effect can be rendered insignificant by encapsulating the complex in an oxygen impermeable polymer, although encapsulation often leads also to a loss of temperature sensitivity. The luminescence properties of Ru(bpy)32+ encapsulated in PVA were studied as a function of oxygen concentration and temperature and found to be independent of the former, but still very sensitive towards the latter. The results were fitted to an established Arrhenius-type equation, based on thermal quenching of the emitting state by a slightly higher (E= 3100 cm-1)3d-d state that deactivates very rapidly (10-13 s)via a non-radiative process.

AB - The ruthenium(II) diimine complexes, such as ruthenium(II) tris(bipyridyl), Ru(bpy)32+, possess highly luminescent excited states that are not only readily quenched by oxygen but also by an increase in temperature. The former effect can be rendered insignificant by encapsulating the complex in an oxygen impermeable polymer, although encapsulation often leads also to a loss of temperature sensitivity. The luminescence properties of Ru(bpy)32+ encapsulated in PVA were studied as a function of oxygen concentration and temperature and found to be independent of the former, but still very sensitive towards the latter. The results were fitted to an established Arrhenius-type equation, based on thermal quenching of the emitting state by a slightly higher (E= 3100 cm-1)3d-d state that deactivates very rapidly (10-13 s)via a non-radiative process.

KW - complexes

KW - sensor

KW - ruthenium(II)

KW - luminophore

KW - dependence

KW - oxygen

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