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Scientific article
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Probing the local symmetry of Tb3+ in borohydrides using luminescence spectroscopy

Published inJournal of Luminescence, vol. 221, no. 117065
Publication date2020
Abstract

Rare-earth borohydrides have recently attracted a strong interest as potential hydrogen storage materials. While the local structure of the BH4􀀀 ion can be probed using vibrational spectroscopy, the local structure of the rareearth ion can be studied using luminescence spectroscopy. This is reported here for Tb(BH4)3 and its solvate with S(CH3)2. The spectra clearly show smaller CF splittings for the unsolvated compound. These experimental data are compared with recent DFTþU calculations of the energy levels and CF splittings for Tb(BH4)3 and show that these calculations significantly overestimate the experimental results.

Keywords
  • Rare erath borohydride
  • Crystal Field
  • Local Symmetry
Funding
  • Swiss National Science Foundation - 200021–169033
Citation (ISO format)
CHRISTMANN, Julien et al. Probing the local symmetry of Tb3+ in borohydrides using luminescence spectroscopy. In: Journal of Luminescence, 2020, vol. 221, n° 117065. doi: 10.1016/j.jlumin.2020.117065
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Identifiers
ISSN of the journal0022-2313
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Technical informations

Creation08/27/2020 11:07:00 AM
First validation08/27/2020 11:07:00 AM
Update time03/15/2023 10:29:32 PM
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