Characterization of an ultrathin polymer optode and its application to temperature sensors based on luminescent europium complexes

Masaya Mitsuishi, Shinji Kikuchi, Tokuji Miyashita, Yutaka Amao

Research output: Contribution to journalArticlepeer-review

99 Citations (Scopus)

Abstract

This paper focuses on an ultrathin polymer optode containing europium complexes (p(DDA-Eu(TTA)3Phen)). Ultrathin films were prepared by the Langmuir-Blodgett (LB) technique; a mixed solution of poly-(N- dodecylacrylamide) (pDDA) and tris(4,4,4-trifluoro-1-(2-thienyl)-1,3- butanediono)-1,10-phenanthroline europium(III) (Eu(TTA)3Phen) was spread onto a water subphase and the condensed monolayer was transferred onto a solid substrate. The spectroscopic properties and layer structure of p(DDA-Eu(TTA)3Phen) LB films were investigated by UV-Vis spectroscopy, fluorescence spectroscopy, time-resolved luminescence decay measurement, X-ray diffraction, and surface plasmon spectroscopy. It was found that europium complexes were uniformly distributed in the ultrathin films compared with a cast film. The p(DDA-Eu(TTA)3Phen) optodes showed efficient sensitivity to temperature in the range of 320 to 370 K. The findings demonstrate that the p(DDA-Eu(TTA)3Phen) optode is a good candidate for temperature sensitive sensors.

Original languageEnglish
Pages (from-to)2875-2879
Number of pages5
JournalJournal of Materials Chemistry
Volume13
Issue number12
DOIs
Publication statusPublished - 2003 Dec

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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