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AbstractThe luminescence properties of the following decatungstates have been investigated: X9LnW10O36 (X = tetra‐n‐butylammonium or brucinium; Ln = Sm, Eu, Dy). Due to the large X ions, the separation between the lanthanide ions is very large. Consequently no interaction between these ions occurs, not even in the case of Sm and Dy. The tetra‐n‐butylammonium salts contain a small number of alkali metal ions. The emission of Eu3+ has been used to analyse the composition in more detail. The brucinium salts do not luminesce efficiently upon tungstate excitation, since the excitation energy is lost, for the greater part, in the brucinium ions.
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 6 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |