Hydrothermal crystal growth of 2-D and 3-D barium rare earth germanates: BaREGeO₄(OH) and BaRE₁₀(GeO₄)₄O₈ (RE = Ho, Er)

Journal Article · Thu Jan 17 04:00:00 UTC 2019 · Journal of Alloys and Compounds

DOI: https://doi.org/10.1016/j.jallcom.2019.01.185 · OSTI ID:1596446

Fulle, Kyle ^[1]; Sanjeewa, Liurukara D.  ^[2]; McMillen, Colin D. ^[2]; De Silva, Channa R. ^[3]; Ruehl, Katarina ^[3]; Wen, Yimei ^[2]; Chumanov, George ^[2]; Kolis, Joseph W. ^[2]

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1. Clemson Univ., SC (United States). Center for Optical Materials Science and Engineering Technologies (COMSET); Clemson University Department of Chemistry
2. Clemson Univ., SC (United States). Center for Optical Materials Science and Engineering Technologies (COMSET)
3. Western Carolina Univ., Cullowhee, NC (United States)

Two new structural types of BaREGeO₄(OH) and BaRE₁₀(GeO₄)₄O₈ (RE=Ho³⁺-Er³⁺) single crystals were synthesized via high temperature and high pressure hydrothermal synthesis. The crystal structure of BaREGeO₄(OH) was found to crystallize in the orthorhombic space group Pbca and contain a one-dimensional chain (1-D) of rare-earth polyhedra linked through edge sharing of oxygen atoms. High density BaRE₁₀(GeO₄)₄O₈ crystals crystallize in monoclinic space group C2/m and feature a sheet like arrangement of rare-earth oxide polyhedra with a Keggin-like arrangement. Barium polyhedra and isolated GeO₄ units aid in connecting the metal oxide framework to extend it in three-dimensional (3-D) space.

• Research Organization: Clemson Univ., SC (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Grant/Contract Number: SC0014271
• OSTI ID: 1596446
• Journal Information: Journal of Alloys and Compounds, Journal Name: Journal of Alloys and Compounds Journal Issue: C Vol. 786; ISSN 0925-8388
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English