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- W4385620225 abstract "The impact of the surrounding ligand field is successfully exploited in the case of Eu2+ to tune the emission characteristics of inorganic photoactive materials with potential application in, e.g., phosphor-converted white light-emitting diodes (pc-wLEDs). However, the photoluminescence of Mn2+ related to intraconfigurational 3d5 -3d5 transitions is also strongly dependent on local ligand field effects and has been underestimated in this regard so far. In this work, we want to revive the idea how to electronically tune the emission color of a transition metal ion in inorganic hosts by unusual electronic effects in the metal-ligand bond. The concept is explicitly demonstrated for the weakly coordinating layer-like borosulfate ligand in the Mn2+ -containing solid solutions Zn1-x Mnx [B2 (SO4 )4 ] (x = 0, 0.03, 0.04, 0.05, 0.10). Zn[B2 (SO4 )4 ]:Mn2+ shows orange narrow-band luminescence at 590 nm, which is an unusually short wavelength for octahedrally coordinated Mn2+ and indicates an uncommonly weak ligand field. On the other hand, the analysis of the interelectronic Racah repulsion parameters reveals ionic Mn-O bonds with values close to the Racah parameters of the free Mn2+ ion. Overall, this strategy demonstrates that electronic control of the metal-ligand bond can be a tool to make Mn2+ a potent alternative emitter to Eu2+ for inorganic phosphors." @default.
- W4385620225 created "2023-08-08" @default.
- W4385620225 creator A5015699129 @default.
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- W4385620225 date "2023-08-31" @default.
- W4385620225 modified "2023-10-17" @default.
- W4385620225 title "Photoluminescence of Mn<sup>2+</sup> in the Borosulfate Zn[B<sub>2</sub>(SO<sub>4</sub>)<sub>4</sub>] : Mn<sup>2+</sup>—A Tool to Detect Weak Coordination Behavior of Ligands" @default.
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- W4385620225 doi "https://doi.org/10.1002/anie.202309212" @default.
- W4385620225 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37548647" @default.
- W4385620225 hasPublicationYear "2023" @default.
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