稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2015年
9期
911-914
,共4页
曹中民%陈永虎%周少帅%段昌奎%尹民
曹中民%陳永虎%週少帥%段昌奎%尹民
조중민%진영호%주소수%단창규%윤민
nanoparticles%upconversion%solvothermal method%intensity ratio%rare earths
Well dispersed orthorhombic structure KYb2F7:2 mol.%Er3+ and KYb3F10:2 mol.%Er3+nanoparticles were synthesized through solvothermal method. Measurements of X-ray diffraction (XRD), transmission electron microscopy (TEM) and upconversion spectra showed excellent morphology and optical properties of the as-prepared samples. The intensity ratio of the red emission (650 nm) to the green emission (545 nm) in these two materials was much stronger than that in other Er3+doped materials. The transition mechanism of the processes was investigated and discussed. Due to their strong red emission, the samples are promising for applica-tions in display, color tuning, and biolabeling.
