Comparative Analysis of Hg2Br2 and Hg2BrxCl2-x Crystals Grown via PVT
| Autor: | Byung Jin Cho, Kyoungah Kim, Shi-Gwan Woo, Ojun Kwon, Gun-Eik Jang |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope General Chemical Engineering Analytical chemistry Crystal growth 02 engineering and technology 01 natural sciences Inorganic Chemistry Crystallinity symbols.namesake physical vapor transport (PVT) X-ray photoelectron spectroscopy Impurity 0103 physical sciences lcsh:QD901-999 General Materials Science Spectroscopy 010302 applied physics crystal growth 021001 nanoscience & nanotechnology Condensed Matter Physics mercury halides symbols lcsh:Crystallography 0210 nano-technology Raman spectroscopy Single crystal |
| Zdroj: | Crystals, Vol 10, Iss 1096, p 1096 (2020) Crystals Volume 10 Issue 12 |
| ISSN: | 2073-4352 |
| DOI: | 10.3390/cryst10121096 |
| Popis: | In this study, we comparatively analyzed the physical properties of Hg2Br2 and Hg2BrxCl2&minus x crystals synthesized via physical vapor transport (PVT). Prior to crystal growth, the elemental mapping images obtained through scanning electron microscopy/energy-dispersive spectroscopy clearly showed the presence of Cl atoms (2.62%) in Hg2BrxCl2&minus x powder however, Cl atoms were not detected in Hg2Br2 powder. After crystal growth by PVT, each single crystal was characterized using various analysis techniques, such as X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. It was observed that the introduction of Cl elements into Hg2Br2 crystals strongly affected the crystallinity and Raman vibration modes. Hence, this in-depth material characterization study proposed a feasible method to screen impurities in mercury halide crystals. |
| Databáze: | OpenAIRE |
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