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《Chinese Journal of Luminescence》 2005-03
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Progress on the Study of Nanoscale Rare Earth Luminescent Materials

ZHANG Ji-lin, HONG Guang-yan (Key Laboratory of Rare Earth Chemistry and Physics, Chinese Academy of Sciences, Changchun 130022, China)  
Compared with their corresponding bulk phases,nanoscale rare earth luminescent materials have come forth a lot of new luminescent phenomena such as the red shift of CTS, the broadening of emission peaks, the increase of quenching concentration, the changes of fluorescent lifetimes and quantum efficiency. Investigating and understanding these materials is not only of academic interest but also of technological importance for advanced phosphor applications. Therefore, in this article, progress on the study of nanoscale rare earth luminescent materials has been reviewed. Firstly, summing up the luminescent characteristic of nanoscale rare earth luminescent particles different from those of bulk materials; secondly, summarizing the preparation and spectrum properties of 1D nanoscale rare earth luminescence materials; thirdly, introducing the patterning of luminescent thin films and assemblies in the mesopore template of 2D nanoscale rare earth luminescence materials; finally, the future development trend for the nanoscale luminescent materials is fore-(casted.) That is to say, in preparation, both nanoscale rare earth luminescent materials with good crystal shape, high brightness, nonaggregating, and narrow particle size distributing and ordered array luminescent devices composed of nanowires, nanotubes, nanorods and so on need to be developed. In fundamental studies, more efforts need to be done on the spectra properties rooted in their surface and interface effects. In applications, the key problems of low luminescent brightness and low stabilities must be resolved.
【Fund】: 国家自然科学基金资助项目(50473002)
【CateGory Index】: TB383
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