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On the valence of Eu in Eu-Pt compounds

✍ Scribed by H. de Graaf; R.C. Thiel; K.H.J. Buschow


Publisher
Elsevier Science
Year
1980
Weight
486 KB
Volume
100
Category
Article
ISSN
0378-4363

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Valencies of Eu in CaS:Eu, La
✍ Han Choi; Chang-Hong Kim; Chong-Hong Pyun; Sung-Jin Kim πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 255 KB

Photoluminescence of La and Eu codoped CaS prepared in sodium and potassium polysulfide flux was studied. The emission spectra of CaS : Eu prepared in both fluxes show a broad band at 650 nm due to the f-d transition of Eu 2Ψ‰ . When potassium polysulfide flux is used, the emission from Eu 2Ψ‰ decreas