期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 212, 期 -, 页码 229-234出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.02.016
关键词
Optical oxygen sensors; Solid-state phosphorescent materials; Quenched phosphorescence detection; Halogenated BODIPY dye
资金
- Irish Department of Agriculture, Food and Marine [DAFM 11/F/015]
The detailed study of oxygen sensitive materials comprising diiodo-borondipyrromethene dye (I-2-BODIPY) encapsulated in hydrophobic polymers (Polysulfone, polyphenylene sulphide and fibrous polypropylene) is presented. These materials display strong absorption in the visible region and moderate room temperature phosphorescence in the near infrared region. They exhibit high sensitivity towards oxygen (tau(N2)/tau(Air) =5-5.5), high photostability, no cross-sensitivity towards humidity and quick response time in dry gas (10 s) and water (25 s). The current system can be an attractive alternative to the commonly used noble and rare metal based O-2 sensors which use e.g. metalloporphyrins or Ru(II) complexes as indicators. (C) 2015 Elsevier B.V. All rights reserved.
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