Absorption and phosphorescence emission spectra of complexes of lutetium(III) and gadolinium(III) with tetraphenylporphyrin in ethanol solutions and in thin films of polytretbutylmethacrylate, polystyrene and methylcellulose are studied. The complexes were photoexcited at 420 nm and display room temperature phosphorescene with a maxima at 780 nm that is quenched by molecular oxygen at room temperature. This quenching effect was exploited to optically sense oxygen. The response time is 1.0 -1.2 s, and the detection limit is 0.05% of oxygen. (C) 2012 Elsevier Ltd. All rights reserved.
机构:
Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Iowa State Univ, Dept Phys & Astron, Ames, IA USAIowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Cai, Yuankun
Smith, Alex
论文数: 0引用数: 0
h-index: 0
机构:
Integrated Sensor Technol Inc, Ames, IA USAIowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Smith, Alex
Shinar, Joseph
论文数: 0引用数: 0
h-index: 0
机构:
Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Iowa State Univ, Dept Phys & Astron, Ames, IA USA
Integrated Sensor Technol Inc, Ames, IA USAIowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Shinar, Joseph
Shinar, Ruth
论文数: 0引用数: 0
h-index: 0
机构:
Integrated Sensor Technol Inc, Ames, IA USA
Iowa State Univ, Microelect Res Ctr, Ames, IA USA
Iowa State Univ, Dept Elect & Comp Engn, Ames, IA USAIowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
机构:
Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Iowa State Univ, Dept Phys & Astron, Ames, IA USAIowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Cai, Yuankun
Smith, Alex
论文数: 0引用数: 0
h-index: 0
机构:
Integrated Sensor Technol Inc, Ames, IA USAIowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Smith, Alex
Shinar, Joseph
论文数: 0引用数: 0
h-index: 0
机构:
Iowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Iowa State Univ, Dept Phys & Astron, Ames, IA USA
Integrated Sensor Technol Inc, Ames, IA USAIowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA
Shinar, Joseph
Shinar, Ruth
论文数: 0引用数: 0
h-index: 0
机构:
Integrated Sensor Technol Inc, Ames, IA USA
Iowa State Univ, Microelect Res Ctr, Ames, IA USA
Iowa State Univ, Dept Elect & Comp Engn, Ames, IA USAIowa State Univ, US DOE, Ames Lab, Ames, IA 50011 USA