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长春光学精密机械与物... [1]
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会议论文 [1]
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2011 [1]
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Synthesis and luminescence properties of Eu3+-doped silicate nanomaterial (EI CONFERENCE)
会议论文
17th International Conference on Dynamical Processes in Excited States of Solids, DPC'10, June 20, 2010 - June 25, 2010, Argonne, IL, United states
Lu S.
;
Zhang J.
;
Zhang J.
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提交时间:2013/03/25
In this paper
we introduce a sol-gel process for preparing Y 2Si2O7: Eu3+ nanocrystals. The rare earth compounds were dispersed in the SiO2 colloids and the monodisperse nano-scale composite materials were prepared. The reactant mass fraction and heat treatment temperatures could affect the structures and emission spectrum properties of as-synthesized samples. The samples emit the strong red light upon excitation under the ultraviolet. The main peaks originate from 5D0-7F2 electric dipole transition of Eu3+. With regard to the samples treated at different temperatures
the emission spectra obtained under 266 nm excitation show different shapes of spectra lines and relative intensities
indicating that the Eu3+ ions have been located in different local environments. 2011 Published by Elsevier B.V.
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