Advanced Materials

Nd2O3 Nanoparticles Modified with a Silane-Coupling Agent as a Liquid Laser Medium


  • The authors gratefully acknowledge important discussions with Prof. Dianyuan Fan (State Key Laboratory for Advanced Photonic Materials & Devices, Fudan University). The help of Prof. Liejia Qian (State Key Laboratory for Advanced Photonic Materials & Devices, Fudan University) in conducting the fluorescence lifetime measurements is much appreciated. This work was financially supported by the National Natural Science Foundation of China (NSFC Nos. 90 401 027, 20 428 304, 60 578 039) and the National Science and Technology Foundation of China (2004AA840 003).


Efficient lasing is demonstrated from a clear dispersion of silane-modifed Nd2O3nanoparticles in dimethylsulfoxide. Surface modification with the silane helps to disperse the nanoparticles, as indicated in the figure. The fluorescence lifetime and quantum yield of the dispersed nanoparticles are amongst the highest obtained for a NdIII emitting center dispersed in an organic medium.

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