Investigation of Luminescence in Rare-Earth Ions Doped Glasses by Regulation of Glass Structure

来源 :第七届中国功能玻璃学术研讨会暨新型光电子材料国际论坛 | 被引量 : 0次 | 上传用户:akljdhnaliuhda
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  Rare earth ions doped luminescent materials exhibits many excellent properties, such as strong absorption ability, high color purity, and colorful hue, wild range of emission wavelength, stable physics and chemistry property.As a result, this kind of material has a wide range of application in many fields such as illumination,display, laser medium, fiber amplifier, optical communication, energy storage and so on.However, the emission efficiency is relative low because of their special 4f electronic transition structure.Glass has many advantages as a host for luminescence materials: high transparency, low cost, easy processing and high luminescent efficiency etc.In addition, due to the special structure of glass-short-range order and long-range disorder, high concentration of rare earth ions can be doped in glass.Based on description above, rare earth ions doped glass is an important material applied in photoelectric field widely.Therefore.it is important to research optical properties of rare earth ions doped glass, and how to improve luminescent efficiency of rare earth ions doped in glass has an important theoretical value in basic research and device project.In this work, rare earth ions doped borate glasses are prepared.We discussed the influence of the glass structure on the rare earth luminescence by changing the borate glasses composition.Borate glass is famous for both low melting point and special structure units.The structure transition between [BO3] units and [BO4] units is existed in the glass when appropriate alkali metal ions or alkali-earth metal ions are doped in the B2O3 glasses, such changes will affect the emission of rare earth ions acutely.Herein, with variation of network forming B2O3 and network medium Al2O3, the luminescent properties of Eu3+ doped B2O3-Al2O3-Na2O glasses is investigated.For above, further investigation is made about the spectra properties of rare earth ions doped borate glasses.In the Eu ions doped and Eu/Ag do-doped borate glasses, the spectral adjustment is realized in the whole visible light range and finally got the white light emission.
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