Vibronic transitions in the luminescence spectra of Pr 3+ in Na 5 La(MoO 4 ) 4

Donegá, Celso de Mello; Crombag, M.J.D.; Meijerink, Andries; Blasse, G.

doi:10.1016/0022-2313(94)90097-3

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…Множество исследований показывают перспективность применения молибдатов допированных редкоземельными ионами в качестве люминофоров, сцинтилляторов и лазерных сред [1][2][3]. Внимание к данным материалам обусловлено широкими возможностями варьирования их физико-химических свойств, термической и химической стабильности, а в некоторых случаях, крайне низким концентрационным тушением, несмотря на значительную концентрацию примеси [4].…”

Section: Introductionunclassified

Люминесценция ионов Pr-=SUP=-3+-=/SUP=- и Nd-=SUP=-3+-=/SUP=- в двойных молибдатах

Софич¹,

Доржиева²,

Чимитова³

et al. 2019

Физика Твердого Тела

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Section: Introductionunclassified

Люминесценция ионов Pr-=SUP=-3+-=/SUP=- и Nd-=SUP=-3+-=/SUP=- в двойных молибдатах

Софич¹,

Доржиева²,

Чимитова³

et al. 2019

Физика Твердого Тела

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“…Namely, the Haung-Rhys factor is almost zero and the vibronic transition due to the Franck-Condon mechanism is usually negligible, although some exceptions have been reported. 13,14 There exist two representative theorerical approaches, which were proposed by Faulkner and Richardson 7,8 and by Stavola and Dexter,11,12 for vibronic spectra of the f -f transition of rare-earth ions. The natures of the vibrations which were treated in these approaches are different.…”

Section: Introductionmentioning

confidence: 99%

Cooperative vibronic transitions inEu3+-doped oxide glasses

Tanaka

Kushida

1999

Phys. Rev. B

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O. The relative intensities of these spectra are analyzed quantitatively on the basis of the cooperative optical transition model proposed by Stavola and Dexter, which assumes that the f -f vibronic transition is allowed by the electrostatic interaction between the rare-earth ion and an oscillating ligand molecule. The fact that the vibronic spectra of the 7 F 0 -5 D 2 and 7 F 1 -5 D 1 transitions are fairly intense compared with the others is shown to be explained well by this model, because these spectra are predicted to occur through the electric dipole-dipole interaction which is the most dominant among the multipole expansion terms of the above electrostatic interaction. The principal mechanisms of the 7 F 0 -5 D 0 and 7 F 0 -5 D 1 vibronic transitions are identified as due to the borrowing of intensities from the 7 F 2 -5 D 0 and 7 F 2 -5 D 1 vibronic transitions respectively, which are predicted to be caused by the dipole-dipole coupling in the above model, via the mixing of the 7 F 2 manifold into 7 F 0 through the second-order component of the crystal-field potential. In addition, the vibronic spectrum of the 7 F 0 -5 D 4 transition is ascribed to the mechanism through the electric octopole-dipole coupling and possibly also to the crystal-field mixing effect for the 5 D 4 manifold. These results show that the interaction of the Eu 3ϩ ion with the vibrations of the surrounding forming units of oxide glasses is described well by the electric multipole-multipole interaction.

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