Luminescence of Eu3+ in Two Different Sites of Na3GdSi2O7 and Gd3+-Eu3+ Energy Transfer
Luminescence of Eu3+ in Two Different Sites of Na3GdSi2O7 and Gd3+-Eu3+ Energy Transfer
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Eu3在Na3GdSi2O7和Gd3-Eu3能量转移两个不同位点的发光
DOI：
10.1149/2.022201jss
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发表时间：
2012-01-01
影响因子：
2.2
通讯作者：
Tao, Ye
中科院分区：
文献类型：
--
作者：
Ni, Haiyong;Liang, Hongbin;Tao, Ye
Eu3+ doped sodium gadolinium pyrosilicate phosphors Na3Gd1-xEuxSi2O7 were prepared using a high-temperature solid-state reaction technique. Structural refinement of Na3GdSi2O7 reveals that there are two distinct Gd3+ sites in Na3GdSi2O7 host lattice. The spectroscopic properties of Na3Gd1-xEuxSi2O7 in VUV-UV-vis range and fluorescent lifetimes were investigated. The nonradiative energy-transfer rate KGd-Eu and energy-transfer efficiency eta(Gd-Eu) were discussed. The luminous intensity and CIE chromaticity coordinates of Na3Gd1-xEuxSi2O7 under 172 nm excitation were compared with that of commercial red-emitting phosphor (Y, Gd)BO3: Eu3+. (C) 2012 The Electrochemical Society. All rights reserved.
