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reworld

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[求助] 最近论文翻译,遇到一些句子难!!!

1.By careful structural and electronic characterization, it is shown that simultaneous substitutions of Eu3+ and Na+ at Ca2+ sites were possible using this methodology, which allows one to vary the local symmetry surrounding Eu3+ and moreover the energy transfer from O2-to Eu3+ and tungstate groups to Eu3+ for optimum luminescence.
2.Upon excitation, Eu3+ can exhibit a highly efficient and narrow emission via exchange interaction and dipole -dipole interaction for both energy migration and energy transfer from the host matrix to the luminescent center.
3.It can be used to modify the local site symmetry of the Eu3+ containing materials for improving the luminescence efficiency.
4.Calcium tungstate (CaWO4) is an important member of metal tungstate families.
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reworld

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引用回帖:
3楼: Originally posted by 生化道长 at 2012-03-15 15:52:39:
1.通过仔细的结构和电子表征,显示用这种方法实现Ca2+位点被Eu3+和Na+的同时取代是可能的,使我们能够改变Eu3+周围的位点对称性,也可改变能量从O2到 Eu3+和从钨酸根到 Eu3+的转移,实现最佳的发光。
2.一旦激发 ...

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4楼2012-03-16 09:38:57
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