Photoluminescence of rare-earth-doped Ca4Ga2S7статья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The photoluminescence, of Ca4Ga2S7 crystals activated with Nd3+, Ce3+, Pr3+, and Tb3+ was investigated between 77 and 300 K. The spectra of all the crystals studied show an emission band at 543 nm, which is due to the Nd3+ G(7/2) –> I-9/2 transition. There is efficient nonradiative energy transfer from Ce3+, Pr3+, and Tb3+ to Nd3+.