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Eu3+-doped glass materials for red luminescence

โœ Scribed by I.V. Kityk; J. Wasylak; D. Dorosz; J. Kucharski

Book ID
104159582
Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
133 KB
Volume
33
Category
Article
ISSN
0030-3992

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โœฆ Synopsis

Red luminescence (at wavelength about 622 nm) from Eu 3+ ions embedded in PbO-Bi2O3-Ga2O3-BaO glass hosts is reported for room and liquid helium temperatures. The substantial in uence of energy transfer processes between the host and Eu 3+ ions is shown experimentally through the dependences of photoluminescence on light polarization and excitation wavelength. Only polarized, excited pulsed XeII laser light ( = 714 nm) gives substantial luminescence with e ciency up to 14.3%. The role of phonon-relaxation subsystem in the observed luminescence is discussed.

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Photoluminescence properties of Bi 3+ co-doped Eu 3+ containing zinc borate glasses have been investigated and the results are reported here. Bright red emission due to a dominant electric dipole transition 5 D 0 -7 F 2 of the Eu 3+ ions has been observed from these glasses. The nature of Stark comp