Ultraviolet 5H3 and visible 5DJ luminescence of europium(III)co-doped with cerium (III) in hexagonal NaGdF4

✍ Scribed by H.S. Kiliaan; J.F.A.K. Kotte; G. Blasse

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 352 KB
• Volume: 133
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(87)87095-1

✦ Synopsis

The luminescence of NaGdF,:Ce,Eu has been investigated. After excitation of Ce 3+ ions at room temperature, energy transfer to the Gd3+ ions occurs, followed by migration over this sublattice to the Ed+ ions, resulting mainly in Eu3+ emission. At liquidhelium temperatures mainly Gd3+ 6P trap emission is observed. The Eu'+ emission in this system is remarkable, because ultraviolet Eu'+ emission ('H3-'FJ) is observed alongside the normal 5DJ emission in the visible region.