A1 Refereed original research article in a scientific journal

Hackmanite-The Natural Glow-in-the-Dark Material




AuthorsAgamah 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

PublisherAMER CHEMICAL SOC

Publication year2020

JournalChemistry of Materials

Journal name in sourceCHEMISTRY OF MATERIALS

Journal acronymCHEM MATER

Volume32

Issue20

First page 8895

Last page8905

Number of pages11

ISSN0897-4756

eISSN1520-5002

DOIhttps://doi.org/10.1021/acs.chemmater.0c02554(external)

Self-archived copy’s web addresshttps://research.utu.fi/converis/portal/detail/Publication/50928779(external)


Abstract
"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.

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Last updated on 2024-26-11 at 16:31