A simple route to the synthesis of single crystalline copper metagermanate nanowires
| Autor: | C.G. Fan, H.S. Zhao, W. Tan, Qian-Feng Zhang, L.Z. Pei, Y.W. Chen, H.Y. Yu |
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| Rok vydání: | 2009 |
| Předmět: |
Materials science
Photoluminescence Mechanical Engineering Nanowire Condensed Matter Physics Crystallography symbols.namesake Electron diffraction Mechanics of Materials Transmission electron microscopy X-ray crystallography symbols General Materials Science Selected area diffraction High-resolution transmission electron microscopy Raman spectroscopy |
| Zdroj: | Materials Characterization. 60:1602-1606 |
| ISSN: | 1044-5803 |
| DOI: | 10.1016/j.matchar.2009.07.005 |
| Popis: | Single crystalline copper metagermanate (CuGeO 3 ) nanowires with the diameter of 30–300 nm and length of longer than 100 µm have been prepared by a simple hydrothermal deposition route. X-ray diffraction (XRD), selected area electron diffraction (SAED), high-resolution transmission electron microscopy (HRTEM) and Raman analyses confirm that the nanowires are orthorhombic single crystals with a main growth direction along . Room temperature photoluminescence (PL) measurement shows a strong blue emission peak at 442 nm with a broad emission band. The blue emission may be ascribed to radiative recombination of oxygen vacancies and oxygen–germanium vacancies. The formation process of CuGeO 3 nanowires is also discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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