Eu(II) luminescence in the perovskite host lattices KMgH3, NaMgH3 and mixed crystals LiBaxSr1-xH3
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Publication date
2014
Authors
Kunkel, N.
Meijerink, A
Springborg, M.
Kohlmann, H.
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Document Type
Article
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Abstract
Bright luminescence of Eu(II) doped into the cubic perovskites KMgH3 and mixed crystal compounds LiBaxSr(1-x)H(3) was observed and assigned to the 4f(6)5d-4f(7) emission of Eu2+. KMgH3: Eu2+ shows an extremely bright yellow emission, whereas the wavelength of the emission maximum in LiBaxSr(1-x)H(3): Eu2+ depends on the value of x and ranges from yellow to green. Furthermore, an extremely wide red shift in the emission energy is observed for the orthorhombically distorted perovskite NaMgH3: Eu2+. Additionally, we review the crystal structure of KMgH3 using density functional calculations.
Keywords
VIBRONIC TRANSITIONS, DIVALENT EUROPIUM, ENERGY, DIFFRACTION, HYDRIDES, EU2+
Citation
Kunkel, N, Meijerink, A, Springborg, M & Kohlmann, H 2014, 'Eu(II) luminescence in the perovskite host lattices KMgH3, NaMgH3 and mixed crystals LiBaxSr1-xH3', Journal of Materials Chemistry C, vol. 2, no. 24, pp. 4799-4804. https://doi.org/10.1039/c4tc00644e