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Luminescence of CsGd2F7 : Er3+, Dy3+ under VUV excitation

Abstract : Luminescence spectra from the deep UV to the visible as well as excitation spectra in the VUV/UV range have been studied for CsGd2F7: Dy3+, CsGd2F7: Er3+ and CsGd2F7: Er3+, Dy3+. It has been found that under VUV excitation the latter crystal shows luminescence originating almost completely from Dy3+. The measured excitation spectra of the different emissions from CsGd2F7: Er3+,Dy3+ gave evidence that in this crystal the energy transfer exists from Gd3+ to Er3+ and Dy3+ as well as from Er3+ to Gd3+ and Dy3+. Thus, by varying the concentration of the doping ions one can expect that for an optimal composition of this compound the down-conversion mechanism can result in a quantum efficiency of visible luminescence under VUV excitation higher than 100%.
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http://hal.in2p3.fr/in2p3-00011180
Contributor : Suzanne Robert <>
Submitted on : Tuesday, February 5, 2002 - 12:08:18 PM
Last modification on : Friday, April 2, 2021 - 4:58:06 PM

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A-N. Belsky, N-M. Khaidukov, J-C. Krupa, V-N. Makhov, A. Philippov. Luminescence of CsGd2F7 : Er3+, Dy3+ under VUV excitation. Journal of Luminescence, Elsevier, 2001, 94, pp.45-49. ⟨in2p3-00011180⟩

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