Hackmanite - The Natural Glow-in-the-Dark Material
Agamah, C., Vuori, S., Colinet, P., Norrbo, I., de Carvalho, J. M., Okada, N., Lindblom, J., van Goethem, L., Emmermann, A., Saarinen, T., Laihinen, T., Laakkonen, E., Lindén, J., Konu, J., Vrielinck, H., Van der Heggen, D., Smet, P. F., Bahers, T., & Lastusaari, M. (2020). Hackmanite - The Natural Glow-in-the-Dark Material. Chemistry of Materials, 32(20), 8895-8905. https://doi.org/10.1021/acs.chemmater.0c02554
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Chemistry of MaterialsAuthors
Date
2020Copyright
© 2020 American Chemical Society
“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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American Chemical Society (ACS)ISSN Search the Publication Forum
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https://converis.jyu.fi/converis/portal/detail/Publication/42434739
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P.F.S. acknowledges the Special Research Fund at Ghent University (BOF-GOA Enclose project). D.V.d.H. acknowledges the UGent Special Research Fund for a doctoral scholarship (BOF16/DOC/327). J.M.C. thanks FAPESP for financial support (Project #2017/05195-5). The authors thank Jonas Joos for insightful discussions. The authors thank the SYSPROD project and AXELERA Pôle de Competitivite for financial support (PSMN Data Center). The authors acknowledge the French agency ANR (TeneMod project ANR-17-CE29-0007-21) as well as Business Finland (SensoGlow project 2291/31/2017) for financial support. ...License
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