期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 525, 期 -, 页码 154-158出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.02.095
关键词
Microwave-assisted synthesis; Multicolor luminescence; Nanomaterials
资金
- National Science Foundation of China [20875011]
- Northeastern University
- US National Science Foundation [DMR-0847758, CBET-0854414, CBET-0854465]
- National Institutes of Health [R21EB009909-01A1, R03AR056848-01, R01HL092526-01A2]
- Oklahoma Center for the Advancement of Science and Technology [7823]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [847758] Funding Source: National Science Foundation
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0854465] Funding Source: National Science Foundation
Polyethyleneimine (PEI) functionalized multicolor luminescent LaF3 nanoparticles were synthesized via a novel microwave-assisted method, which can achieve fast and uniform heating under eco-friendly and energy efficient conditions. The as-prepared nanoparticles possess a pure hexagonal structure with an average size of about 12 nm. When doped with different ions (Tb3+ and Eu3+), the morphology and structure of the nanoparticles were not changed, whereas the optical properties varied with doped ions and their molar ratio, and as a result emission of four different colors (green, yellow, orange and red) were achieved by simply switching the types of doping ions (Eu3+ versus Tb3+) and the molar ratio of the two doping ions. (C) 2012 Elsevier B.V. All rights reserved.
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