Flux growth and luminescence of PrAl3(BO3)4, HoAl3(BO3)4 and Ho:YAl3(BO3)4 crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:HoxY1−xAl3(BO3)4 and PrAl3(BO3)4 crystals have been grown from high-temperature solutions. Holmium segregation coefficients ranged from 1.08 to 1.40. Strong visible and near-infrared luminescence from Ho3+ and Pr3+ was obtained in the crystals with only weak-concentration quenching. Spectral evidence of energy transfer among Ho3+ ions was also observed. The simultaneous observations of low-concentration quenching and Ho3+–Ho3+ energy transfer suggest that YAl3(BO3)4 is a suitable host lattice for high-efficiency rare-earth energy transfer and sensitization schemes.