期刊
INORGANIC CHEMISTRY
卷 50, 期 11, 页码 4698-4704出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic101496b
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology, Scientific Research of Priority Areas
- JSPS
A new approach that uses mixed supercritical solvents of water/1-propanol and water/methanol (400 degrees C, 40 MPa) to prepare morphology-controlled precursor materials in a very short reaction time, such as 10 min, followed by calcinations has been developed to form Eu3+:Y2O3 microspheres of 2-3 mu m in diameter or microcubes of 2-3 mu m in side length, respectively. Eu3+:Y2O3 microspheres and microcubes exhibited strong red emission at 610 nm corresponding to D-5(0) -> F-7(2) transition. The highest photoluminescence emission was obtained for the microspheres after calcination at 1000 degrees C for 1 h in air.
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