Optical high temperature sensor based on green up-conversion emissions in Er3+ doped Al2O3
作者： B. Dong , T. Yang , M.K. Lei
DOI: 10.1016/J.SNB.2006.10.002
关键词: Acetylacetone 、 Dopant 、 Analytical chemistry 、 Atmospheric temperature range 、 Laser diode 、 Doping 、 Temperature measurement 、 Nitric acid 、 Erbium 、 Materials science
摘要: Abstract Er 3+ doped Al 2 O 3 has been prepared by a non-aqueous sol–gel method using aluminum isopropoxide as precursor, acetylacetone chelating agent, nitric acid catalyzer, and hydrated erbium nitrate dopant in an isopropanol environment. The fluorescence intensity ratio (FIR) of the green up-conversion emissions at wavelengths about 523 545 nm was studied function temperature over wide range 295–773 K, 978 nm semiconductor laser diode (LD) excitation source. maximum sensitivity resolution derived form FIR are approximately 0.0052 K −1 0.3 K, respectively. It is demonstrated that prototype optical high sensor based on technique from promising for applications measurement.
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