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

Author(s):Show less -

Agamah, Cecilia ^{[1, 2]} ; Vuori, Sami ^{[1, 2]} ; Colinet, Pauline ^[3] ; Norrbo, Isabella ^[1] ; de Carvalho, Jose Miranda ^[4] ; Okada Nakamura, Liana Key ^[5] ; Lindblom, Joachim ^[6] ; van Goethem, Ludo ^[7] ; Emmermann, Axel ^[7] ; Saarinen, Timo ^[8] ; Laihinen, Tero ^[1] ; Laakkonen, Eero ^[9] ; Linden, Johan ^[10] ; Konu, Jari ^[11] ; Vrielinck, Henk ^[12] ; Van der Heggen, David ^[12] ; Smet, Philippe F. ^[12] ; Le Bahers, Tangui ^[3] ; Lastusaari, Mika ^{[1, 13]}

Affiliation:Show less -

^[1] Univ Turku, Dept Chem, FI-20014 Turku - Finland

^[2] Univ Turku Grad Sch UTUGS, Doctoral Programme Phys & Chem Sci, Turku - Finland

^[3] Univ Lyon 1, Univ Lyon, ENS Lyon, CNRS, Lab Chim UMR, F-5182 Lyon - France

^[4] Univ Sao Paulo, Dept Appl Phys, BR-0508000 Sao Paulo, SP - Brazil

^[5] Colegio Nossa Senhora Dores, BR-02517001 Sao Paulo, SP - Brazil

^[6] Morris Lindblom & Co, FI-20200 Turku - Finland

^[7] Mineral Soc Antwerp, B-2100 Deurne - Belgium

^[8] Univ Turku, Dept Geog & Geol, FI-20014 Turku - Finland

^[9] Univ Turku, Dept Teacher Educ, FI-20014 Turku - Finland

^[10] Abo Akad Univ, Fac Sci & Engn Phys, FI-20500 Turku - Finland

^[11] Univ Jyvaskyla, Dept Chem, FI-40014 Jyvaskyla - Finland

^[12] Univ Ghent, Dept Solid State Sci, B-9000 Ghent - Belgium

^[13] Turku Univ Ctr Mat & Surfaces MatSurf, Turku - Finland

• Document type: Journal article
• Source: CHEMISTRY OF MATERIALS; v. 32, n. 20, p. 8895-8905, OCT 27 2020.
• Web of Science Citations: 2

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. (AU)

• FAPESP's process: 17/05195-5 - Structure-property relations of inorganic luminescent materials obtained by microwave-assisted synthesis method
• Grantee: Jose Miranda de Carvalho Junior
• Support Opportunities: Scholarships in Brazil - Post-Doctoral