| CsSm_（1－x）Eu_xI_3体系及其荧光光谱 |
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| 引用本文： | 王淑萍,王世华,蒋盛帮. CsSm_（1－x）Eu_xI_3体系及其荧光光谱[J]. 北京师范大学学报(自然科学版), 1996, 0(4) |
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| 作者姓名： | 王淑萍 王世华 蒋盛帮 |
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| 作者单位： | 北京师范大学化学系 |
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| 摘 要： | 已知二价稀土三元碘化物ＣｓＳｍＩ３的结构，以半径较小的Ｅｕ２＋取代Ｓｍ２＋，在ＣｓＳｍ（１－ｘ）ＥｕｘＩ３体系中，得到一系列与ＣｓＳｍＩ３同结构的化合物。它们的摩尔体积随着ｘ的增大而直线下降，形成了连续固溶体，在３３０ｎｍ激发下，固溶体的荧光发射在ｘ＝０．８时，为６５０～８００ｍｎ处Ｓｍ２＋的ｄ_ｆ跃迁宽带发射，反映了Ｅｕ２＋_Ｓｍ２＋的能量传递。
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| 关 键 词： | 二价稀土三无碘化物；固溶体系；荧光光谱；能量传递 |
CsSm_(1-x)Eu_xI_3 SYSTEM AND FLUORESENCE SPECTRA |
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| Wang Shuping, Wang Shihua, Jiang Shengbang. CsSm_(1-x)Eu_xI_3 SYSTEM AND FLUORESENCE SPECTRA[J]. Journal of Beijing Normal University(Natural Science), 1996, 0(4) |
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| Authors: | Wang Shuping Wang Shihua Jiang Shengbang |
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| Abstract: | The structure of CsSmI3 was reported. In CsSmI3 Eu2+ replaee Sm2+ as x value gradually increase in CsSm(1-x)EuxI3 system, the Vm of CsSm(1-x)EuxI3 system linearly dicrase.A continuous solids solution of CsSm(1-x)EuI3 formed. Fluorescence spectra of the system was measured. Samples of CsSm(1-x)EuxI3 system, when x=0.8, excite by 300nm. a broad band emission 650-800 nm of Sm2+ for d_f transfer only appear. The results reflect energy transfer Eu2+_Sm2+ . |
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| Keywords: | divalent rare earth ternary iodides solid solution system fluorescence spectra energy transfer |
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