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Issue 45, 2018
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(Lu0.3Gd0.7)2SiO5:Y3+ single crystals grown by the laser floating zone method: structural and optical studies

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Abstract

Highly transparent (Lu0.3Gd0.7)2SiO5:Y3+ (5 at%) single crystals were obtained by the laser floating zone (LFZ) technique in air at 10 mm h−1. Scanning electron microscopy (SEM/EDS) allowed observation of homogeneous crystalline fibres of B-type oxyorthosilicates with a C2/c monoclinic structure, as revealed by X-ray diffraction and Raman spectroscopy studies. Optical measurements on 0.32 mm thick samples revealed ∼86% transmission in the visible-NIR range, together with intense intra 4f7 transitions of Gd3+ ions from the 8S7/2 ground state in the UV region. Additionally, as a good indication of being a host matrix for photonic applications, a wide bandgap favouring the introduction of energy levels in the forbidden band was observed in these materials through photoluminescence (PL) and photoluminescence excitation (PLE) studies.

Graphical abstract: (Lu0.3Gd0.7)2SiO5:Y3+ single crystals grown by the laser floating zone method: structural and optical studies

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Publication details

The article was received on 07 Aug 2018, accepted on 28 Oct 2018 and first published on 29 Oct 2018


Article type: Paper
DOI: 10.1039/C8CE01319E
Citation: CrystEngComm, 2018,20, 7386-7394
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    (Lu0.3Gd0.7)2SiO5:Y3+ single crystals grown by the laser floating zone method: structural and optical studies

    F. Rey-García, J. Rodrigues, A. J. S. Fernandes, M. R. Soares, T. Monteiro and F. M. Costa, CrystEngComm, 2018, 20, 7386
    DOI: 10.1039/C8CE01319E

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