A1 Refereed original research article in a scientific journal
Hackmanite-The Natural Glow-in-the-Dark Material
Authors: Agamah C, Vuori S, Colinet P, Norrbo I, de Carvalho JM, Nakamura LKO, Lindblom J, van Goethem L, Emmermann A, Saarinen T, Laihinen T, Laakkonen E, Linden J, Konu J, Vrielinck H, Van der Heggen D, Smet PF, Le Bahers T, Lastusaari M, Lastusaari M
Publisher: AMER CHEMICAL SOC
Publication year: 2020
Journal: Chemistry of Materials
Journal name in source: CHEMISTRY OF MATERIALS
Journal acronym: CHEM MATER
Volume: 32
Issue: 20
First page : 8895
Last page: 8905
Number of pages: 11
ISSN: 0897-4756
eISSN: 1520-5002
DOI: https://doi.org/10.1021/acs.chemmater.0c02554(external)
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/50928779(external)
"Glow-in-the-dark" materials are known to practically everyone who has ever traveled by airplane or cruise ship, since they are commonly used for self-lit emergency exit signs. The green afterglow, persistent luminescence (PeL), is obtained from divalent europium doped to a synthetic strontium aluminate, but there are also some natural minerals capable of afterglow. One such mineral is hackmanite, the afterglow of which has never been thoroughly investigated, even if its synthetic versions can compete with some of the best commercially available synthetic PeL materials. Here we combine experimental and computational data to show that the white PeL of natural hackmanite is generated and controlled by a very delicate interplay between the natural impurities present. The results obtained shed light on the PeL phenomenon itself thus giving insight into improving the performance of synthetic materials.
Downloadable publication This is an electronic reprint of the original article. |  |
