ZHENG Hai-rong, GAO Dang-li, GAO Wei, LI Jiao, HE En-jie, TU Yin-xun. Controlling The Fluorescence Emission of Rare Earth Doped Nanocrystals[J]. Chinese Journal of Luminescence, 2012,33(2): 115-121
ZHENG Hai-rong, GAO Dang-li, GAO Wei, LI Jiao, HE En-jie, TU Yin-xun. Controlling The Fluorescence Emission of Rare Earth Doped Nanocrystals[J]. Chinese Journal of Luminescence, 2012,33(2): 115-121 DOI: 10.3788/fgxb20123302.0115.
Controlling The Fluorescence Emission of Rare Earth Doped Nanocrystals
The fluorescence emission of rare earth doped nanocrystal depends on the optical active ion and its matrix structure. For a given system
it can be adjusted either by changing the characteristics of the particle or by improving the environmental conditions around the particle. The characteristics of the particle can be modified by adjusting the content and structure of the matrix crystal
codopant ion and its concentration
morphology and size of the particle
surface modification as well as the introduction of enhancement through metallic surfaces. The environmental change could refer to the environmental temperature and the excitation of the system. In current paper
possible factors that influence the fluorescence emission as well as frequently used techniques for controlling the fluorescence properties are reviewed briefly. Changes in local symmetry and interactions of optically active ion with neighbored ions
which are mainly induced by adjusting the crystal structure and codoping process
are discussed intensively.
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references
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