期刊
NANOSCALE
卷 5, 期 23, 页码 11928-11932出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr01840g
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资金
- National Basic Research Program of China [2011CB933502]
- National Natural Science Foundation [21020102038, 21121091]
- Academic Research Fund (Tier 1) from the Singapore Ministry of Education [RG 20/09]
- Jiangsu Specially-Appointed Professors Program, China
For the first time, we have synthesized orthorhombic phase KSc2F7:20% Yb/2% Er (KSc2F7:Yb/Er) nanorods and further studied the crystal structure and morphology evolution, as well as their upconversion (UC) properties under varying F- contents and reaction temperatures. Different from beta-NaYF4:20% Yb/2% Er (NaYF4:Yb/Er) nanorods that usually give strong green UC luminescence, strong red UC emission was observed in KSc2F7:Yb/Er nanorods under 980 nm laser excitation. Their UC mechanisms are further analyzed and compared. This study provides a novel type of rare earth nanorods with strong red UC emissions which have great potential in high resolution 3-dimensional bioimaging, color displays, solid-state lasers, and photocatalysis.
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