Up-conversion emission in rare earth-doped Y2Ti2O7 sol–gel thin films
Up-conversion emission in rare earth-doped Y2Ti2O7 sol–gel thin films
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DOI：
10.1016/j.jlumin.2004.10.025
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发表时间：
2005-06
影响因子：
3.6
通讯作者：
P. Jenouvrier;G. Boccardi;J. Fick;A. Jurdyc;M. Langlet
中科院分区：
文献类型：
--
作者：
P. Jenouvrier;G. Boccardi;J. Fick;A. Jurdyc;M. Langlet
Yttrium titanate (YTO) thin films doped with rare earth elements have been deposited using the aerosol-gel process. The up-conversion emission (UPE) of films doped with erbium and/or thulium has been studied with respect to the film crystallization degree and rare earth concentration. The effects of ytterbium codoping have been considered as well. Mechanisms that control UPE of YTO films are discussed with respect to the experimental conditions. It is shown that films, which selectively emit in the blue ({sup 1}G{sub 4}{yields}{sup 3}H{sub 6} transition of thulium ions), green ({sup 2}H{sub 11/2}{yields}{sup 4}I{sub 15/2} and {sup 4}S{sub 3/2}{yields}{sup 4}I{sub 15/2} transitions of erbium ions), or red ({sup 4}F{sub 9/2}{yields}{sup 4}I{sub 15/2} transition of erbium ions), can readily be achieved.
