期刊
JOURNAL OF FLUORINE CHEMISTRY
卷 130, 期 8, 页码 742-748出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2009.05.018
关键词
Crystal morphology; Hydrothermal synthesis; Fluoride; Perovskites; Photoluminescence
资金
- National Natural Science Foundation of China [20371044, 20621061]
- 973 Projects of China
Micropolyhedra, microspheres and hollow microspheres of the cubic KMnF3 were selectively prepared by controllable, hydrothermal method at 120 degrees C. Manganese acetate and potassium fluoride were employed as the starting materials in the reaction, and variety of polyethylene glycol and dosage of citric acid were demonstrated to be responsible for the shape evolution. The samples were characterized by Xray diffraction, scanning electron microscopy, X-ray photoelectron spectra, UV-vis absorption spectroscopy and photoluminescence spectra. A possible mechanism for the growth of KMnF3 microcrystal was proposed. (C) 2009 Elsevier B.V. All rights reserved.
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