Synthesis and optical properties of LiNd（PO3）4 nanocrystals dispersion in DMSO/TBE
来源期刊：JOURNAL OF RARE EARTHS2019年第6期
论文作者：Zhongyue Wang Zhen Yang Ruilin Zheng Kehan Yu Peng Lv Chunxiao Liu Wei Wei
文章页码：580 - 584
摘 要：Lanthanide doped nanocrystals with strong fluorescence, long lifetime at high doping concentrations have great potential application in bio-imaging and liquid gain medium. LiNd（PO3）4（LNP） crystal was reported to be one of the most excellent laser crystals with high Nd3+ concentration, and their nanocrystals synthesized via improved combustion method for the first time had strong emission intensity and long fluorescence lifetime of 122 μs. Besides,LiNd（PO3）4 nanocrystals can be dispersed in mixed solvents of DMSO/TBE（CHBr2 CHBr2） to form a transparent colloidal dispersion, and Judd-Ofelt theory was used to evaluate their optical parameters. In summary, LiNd（PO3）4 nanocrystals possess long lifetime（116 μs）, low solvents quenching rate（4.9%）, large emission cross section(7.63 × 10-20 cm2) and high quantum yield（35.2%） under high Nd3+ ions concentration(1×1020 cm-3), which would be the most competitive colloidal gain medium of optical amplification and laser with LD pump and potential biomaterial with low particles concentration.
Zhongyue Wang，Zhen Yang，Ruilin Zheng，Kehan Yu，Peng Lv，Chunxiao Liu，Wei Wei
College of Electronic and Optical Engineering & College of Microelectronics (EOM),Nanjing University of Posts and Telecommunications (NUPT)
摘 要：Lanthanide doped nanocrystals with strong fluorescence, long lifetime at high doping concentrations have great potential application in bio-imaging and liquid gain medium. LiNd（PO3）4（LNP） crystal was reported to be one of the most excellent laser crystals with high Nd3+ concentration, and their nanocrystals synthesized via improved combustion method for the first time had strong emission intensity and long fluorescence lifetime of 122 μs. Besides,LiNd（PO3）4 nanocrystals can be dispersed in mixed solvents of DMSO/TBE（CHBr2 CHBr2） to form a transparent colloidal dispersion, and Judd-Ofelt theory was used to evaluate their optical parameters. In summary, LiNd（PO3）4 nanocrystals possess long lifetime（116 μs）, low solvents quenching rate（4.9%）, large emission cross section(7.63 × 10-20 cm2) and high quantum yield（35.2%） under high Nd3+ ions concentration(1×1020 cm-3), which would be the most competitive colloidal gain medium of optical amplification and laser with LD pump and potential biomaterial with low particles concentration.
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