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Issue 17, 2017
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Effects of thermal annealing on the structural and electronic properties of rare earth-implanted MoO3 nanoplates

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Abstract

The compositional, structural and morphological recovery of α-MoO3 nanoplates implanted with Eu and Er ions has been assessed as a function of post-implantation thermal treatments. Rapid thermal annealing induces the formation of phases different from α-MoO3 and seems to be unable to recover the original oxygen content of the nanostructures. In contrast, conventional annealing in air at 450 °C for 4 hours fully recovers the original molybdenum trioxide structure and leads to an effective optical activation of both Er and Eu ions. Synchrotron-based X-ray photoelectron spectroscopy and X-ray absorption studies confirm the incorporation of the rare earth ions into their trivalent charge state and reveal the modification of the original valence band structure of the nanoplates.

Graphical abstract: Effects of thermal annealing on the structural and electronic properties of rare earth-implanted MoO3 nanoplates

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Publication details

The article was received on 05 Feb 2017, accepted on 22 Mar 2017 and first published on 23 Mar 2017


Article type: Paper
DOI: 10.1039/C7CE00242D
Citation: CrystEngComm, 2017,19, 2339-2348
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    Effects of thermal annealing on the structural and electronic properties of rare earth-implanted MoO3 nanoplates

    M. Vila, C. Díaz-Guerra, K. Lorenz, J. Piqueras, I. Píš, E. Magnano, C. Munuera, E. Alves and M. García-Hernández, CrystEngComm, 2017, 19, 2339
    DOI: 10.1039/C7CE00242D

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