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Title

Optical spectroscopy of the Ag+ ion in NaF: Experimental results and analysis of manifestations of the Jahn-Teller effect

Authors
Hollingsworth, G. J.
McClure, D. S.
Moine, Bernard
Pedrini, Christian
Published in Journal of Chemical Physics. 1998, vol. 109, no. 17, p. 7328-7337
Abstract The 4d10→4d95s1 transitions of the Ag+ ion in single crystals of NaF were investigated by one- and two-photon spectroscopy and luminescence experiments. The one-photon absorption spectrum extends from 238 to below 180 nm. At low temperature, several bands show resolved fine structure, but compared to NaF:Cu+, there is much less, and the lines are broader. The Jahn–Teller effect is much larger in Ag+ than in Cu+ and has been identified in three of the excited states. Trapping in Jahn–Teller minima is shown to change the emission kinetics radically compared to Cu+. The off-center force from the d9p states has much less effect on Ag+ than on Cu+. All of the evidence shows that Ag+ is more strongly coupled to the lattice than is Cu+.
Keywords Sodium compoundsSilverPhotoluminescenceTwo-photon spectraImpurity absorption spectraUltraviolet spectraJahn-Teller effect
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Research group Groupe Bill
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BILL, Hans et al. Optical spectroscopy of the Ag+ ion in NaF: Experimental results and analysis of manifestations of the Jahn-Teller effect. In: Journal of Chemical Physics, 1998, vol. 109, n° 17, p. 7328-7337. https://archive-ouverte.unige.ch/unige:2948

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Deposited on : 2009-09-21

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