Dissertation > Industrial Technology > Chemical Industry > Silicate > Ceramic Industry > Raw materials and auxiliary materials

Preparation and Properties of Er3+:Yagg and Er3+,Yb3+:YAGG Laser Ceramic Raw Materials

Author DongYanZuo
Tutor SunJing
School Changchun University of Science and Technology
Course Physical and chemical
Keywords Er3+:YAGG Er3+,Yb3+:YAGG laser ceramic fluorescence
CLC TQ174.4
Type Master's thesis
Year 2013
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Yttrium aluminum gallium garnet (YAGG) laser ceramic raw materials doped wit Er3+or Er3+/Yb3+were prepared by sol-gel low temperature combustion method, co-precipitation method and step precipitation method.The analysis of the XRD, indicated that the synthesis temperature for the powders which prepared by sol-gel low temperature combustion method was1000℃.The analysis of the IR indicated that the wavenumber between550cm-1-640cm-1was caused by the lattice vibration of YAGG TG-DTA showed that the major mass loss was appeared between40℃and900℃, and the value was about47.78%.SEM analysis manifested the morphology of the powders were approximate spherical shape and the average diameter was about60nm.The fluorescence spectrum analysis indicated that the strongest fluorescence peak appeared around1530nm that was caused by4I13/2-4I15/2of Er3+ion. The intensity of the fluorescence has been increased when Yb3+ion mixed in the powders. This phenomenon indicated the energy transfer system of Er-Yb. The powders which prepared by co-precipitation method showed a lower synthesis temperature which was700℃. The major mass loss was appeared between20℃and600℃. The morphology was approximate spherical shape and the average diameter was about59.87nm. The strongest fluorescence peak was appeared around1530nm.When use the method of step precipitation method,1000℃was the synthesis temperature.Also it showed the smallest diameter of the powders that was58.85nm.The strongest fluorescence peak which appeared around1530nm was caused by Er3+ion.

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