Combustion synthesis and enhanced 1.5 μm emission in Y2O3:Er3+ powders codoped with La3+ ions
作者： Ruoshan LEI , Huanping WANG , Shiqing XU , Ying TIAN , Qinghua YANG
DOI: 10.1016/S1002-0721(16)60003-0
关键词:
摘要: Abstract Er 3+ and La codoped Y 2 O 3 nanocrystalline powders were synthesized by gel combustion method characterized with thermal analysis, X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM) techniques fluorescence spectroscopy. After being calcined at 1200 °C, the (Y 1- x ) :Er confirmed to be cubic phase crystalline grain size in range of 20-40 nm. The emission 1.53 μm from 4 I 13/2 → 15/2 transition was observed, which found enhanced introducing ions. Such enhancement could attributed adjustment ions' local environment codoping ions, leading increased ground state absorption cross section
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