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Selective self-redox and crystal field modulation for enhanced and tuned broadband emission in chromium-doped aluminate glasses

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Abstract

The emerging era of big data has stimulated the development of optical materials with broad emission region to allow data transmission of higher capacity and speed. Here, broadband emission, almost covering the region of 650–1500 nm, was realized by doping transition metal ions into versatile aluminate glasses, in which abundant microstructures and certain oxidizing capacity could be guaranteed to enrich emissions. Furthermore, we aimed to improve spectroscopic properties via the simultaneous self-redox and crystal field modulation of Cr ions and matrixes, respectively. More emission ions and more efficient centers were created to enhance the emission intensity by more than one order of magnitude. In addition, proper crystal field was created to liberate a new emission band at ∼708 nm. The results may allow the development of tunable fiber laser and amplifier using the materials and pave the way to precisely control the valence and crystal field to obtain efficient emission.

Graphical abstract: Selective self-redox and crystal field modulation for enhanced and tuned broadband emission in chromium-doped aluminate glasses

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Publication details

The article was received on 21 Dec 2018, accepted on 15 Jan 2019 and first published on 16 Jan 2019


Article type: Paper
DOI: 10.1039/C8TC06453A
Citation: J. Mater. Chem. C, 2019, Advance Article

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    Selective self-redox and crystal field modulation for enhanced and tuned broadband emission in chromium-doped aluminate glasses

    X. Li, H. Luo, Y. Wang, X. Wang, J. Cao, L. Wang and M. Peng, J. Mater. Chem. C, 2019, Advance Article , DOI: 10.1039/C8TC06453A

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