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Realizing a novel dazzling far-red-emitting phosphor NaLaCaTeO6:Mn4+ with high quantum yield and luminescence thermal stability via the ionic couple substitution of Na+ + La3+ for 2Ca2+ in Ca3TeO6:Mn4+ for indoor plant cultivation LEDs

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Abstract

A novel dazzling far-red-emitting phosphor NaLaCaTeO6:Mn4+ (NLCTO:Mn4+) with superior photoluminescence properties was found via an ionic couple substitution strategy of Na+ + La3+ for 2Ca2+ in non-luminous Ca3TeO6:Mn4+ for the first time, which is originated from the significant distortion of TeO6 octahedra. The results indicate that the ionic couple substitution strategy is a feasible guide to explore novel Mn4+-involved oxide phosphors for potential application in plant cultivation LEDs.

Graphical abstract: Realizing a novel dazzling far-red-emitting phosphor NaLaCaTeO6:Mn4+ with high quantum yield and luminescence thermal stability via the ionic couple substitution of Na+ + La3+ for 2Ca2+ in Ca3TeO6:Mn4+ for indoor plant cultivation LEDs

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Publication details

The article was received on 16 Jul 2019, accepted on 08 Aug 2019 and first published on 08 Aug 2019


Article type: Communication
DOI: 10.1039/C9CC05465K
Chem. Commun., 2019, Advance Article

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    Realizing a novel dazzling far-red-emitting phosphor NaLaCaTeO6:Mn4+ with high quantum yield and luminescence thermal stability via the ionic couple substitution of Na+ + La3+ for 2Ca2+ in Ca3TeO6:Mn4+ for indoor plant cultivation LEDs

    K. Li and R. Van Deun, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC05465K

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