Synthesis and characterization of luminescent eu(TTA)3phen in a poly(ethylene oxide) matrix for detecting traces of water

Pu Reun Choi, Hyung Ho Park, Eunhae Koo

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Abstract

The water vapor transmission rate (WVTR) is limited to 10-6 g/m2/day for flexible organic light-emitting diodes. However, it is difficult to measure permeability as low as 10-6 g/m2/day with current commercial testing methods. To address this need, a developed optochemical method which is extremely sensitive to oxygen or water shows promise. In this study, an Eu complex is synthesized and characterized as a fluorescent probe for detecting traces of water molecules. The Eu-complex film dispersed in poly(ethylene oxide) has strong red fluorescence that is easily quenched by a trace of water. Based on the photoluminescence spectra, the detection limit of the film to water appears to be below 1.0 × 10 -9 g/cc. This suggests that the Eu-complex film can be used as a film sensor to measure WVTRs below 10-6 g/m2/day.

Original languageEnglish
Pages (from-to)927-930
Number of pages4
JournalJournal of Electronic Materials
Volume42
Issue number5
DOIs
Publication statusPublished - 2013 Apr 8

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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